Belt Service Kits

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 M3, Z3M, Z...

T#:23482931

Part#: S54KEVACCKT

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Sale - Save 2% $ 333.99

This product was last offered at the strikethrough price on
05-03-2026

$ 327.21 USD

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$ 327.21 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belts and Tensioners Kit - E60, E63, E65 - N62 Engine ...

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T#:182559

Part#: ADK0024P

Ships in 6 Business Days

$ 195.99 USD

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$ 195.99 USD

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Continental is the OEM supplier for the stock serpentine accessory belt on your N62 V8 engine. They are also the OEM for many other components on your entire car. This extensive kit covers many of the common wear items that should be changed any time the serpentine belt is being replaced. As these cars gain years and mileage the belt tensioners will also need to be replaced along with the actual belts. It won't do any good to replace the belt if the tensioners are worn. This kit will save you time and money over buying these pieces individually and you get OEM-quality over any 3rd party aftermarket brands.

Included in the accessory belt and tensioner kit is:

main drive belt (water pump, alternator), 11287539831
A/C belt, 11287520177
mechanical belt tensioner with pulley, 11287549588
deflection pulley, 11287549557

This item fits the following BMWs:
2004-2010 E60 BMW 545i 550i
2004-2011 E63 BMW 645ci 650i
2002-2008 E65 BMW 745i 745li 750i 750li

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OEM Accessory Belt Service Kit - E34 525i M20

T#:589759

Part#: PBTABE34M20KT

Ships in 6 Business Days

$ 142.09 USD

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$ 142.09 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW E60 N54 3....

T#:22163416

Part#: 4485241TKT

In Stock

Sale - Save 23% $ 177.99

This product was last offered at the strikethrough price on
05-03-2026

$ 136.47 USD

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Sale - Save 23%

$ 177.99

This product was last offered at the strikethrough price on
05-03-2026

$ 136.47 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, belt tensioner, and idler pullies. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 E39 M54 ...

T#:23482922

Part#: 4PK863ATKT

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Sale - Save 3% $ 254.99

This product was last offered at the strikethrough price on
05-03-2026

$ 246.93 USD

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Sale - Save 3%

$ 254.99

This product was last offered at the strikethrough price on
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$ 246.93 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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N55 "Bulletproof" Crank Hub & Serpentine Kit - BMW E82/88 E9X N55 3.0...

T#:1241397

Part#: TMSE90N55BPKT

Ships in 2 Business Days

$ 601.55 USD

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BMW has a seemingly endless number of fans of the N54/N55/S55 engines, three straight-six turbo engines that are each capable of 750+ horsepower, but that doesn't mean they were without their faults! BMW's N54 had a notoriously rocky start with reliability due to multiple issues such as fuel injectors failing, turbos failing, serpentine belt failure, crank hubs coming loose, and more... BMW made multiple attempts to fix the issues plaguing the N54, but they could only do so much and the fixes rolled out seemed temporary at best. Following the N54, BMW released their updated N55 and S55 engines, giving many people hope that these engines would address the previous issues. Unfortunately, this was only some-what the case. Crank hubs and crank bolts continued to loosen over time and serpentine belts continued to shred themselves and get pulled into the oil pan through the front main seal. For all three engines, this meant a single failure could effectively turn your engine into an oversized paperweight. Luckily for us, the BMW community is full of skilled enthusiasts who have gladly taken up the task to offer solutions! The first headache to be addressed was the Crank Hub and Bolt. Using a simple plate that fits perfectly over your crank hub's hex-head bolt and mounts up against the damper, the crank bolt is effectively locked in place, preventing it from being able to back out until the plate is fully removed. Next up was the serpentine belt failures. It's not known what exactly causes the serpentine belt to split, but once it does, the pieces hanging off of the belt wrap around and behind the damper. This leads to the belt breaking up into smaller pieces and eventually getting pushed between the crank hub and rear main seal into the oil pan. These small pieces of debris get caught in and block the oil pickup, preventing oil flow and leading to engine failure. To prevent this, multiple aftermarket companies came up with their own versions of Crank Seal Plates. This plate is installed behind the front damper, blocking the opening that allows the serpentine belt to pass between the crank hub and seal, keeping debris out of your oil pan! Also included in this kit are the components to service your front Oil Cooler/Filter Housing gaskets, refresh your drive belt system, and install the aftermarket upgrades. Kit Features and Contents: Vargas Turbo Crank Bolt Capture Vargas Turbo Crank Seal Plate OEM Accessory Belt OEM Belt Tensioner & Idler Pullies Liqui-Moly Longtime High Tech Engine Oil (5w-30) - 7 Liters OEM Hengst Oil Filter OEM Oil Filter/Cooler Housing Gaskets TMS Oil Change Sticker Genuine BMW Full-Strength Coolant - 1 Liter

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N55 "Bulletproof" Crank Hub & Serpentine Kit - BMW F22/23 F3X N55 3.0...

T#:1241398

Part#: TMSF30N55BPKT

In Stock

Sale - Save 4% $ 520.99

This product was last offered at the strikethrough price on
05-03-2026

$ 498.55 USD

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Sale - Save 4%

$ 520.99

This product was last offered at the strikethrough price on
05-03-2026

$ 498.55 USD

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BMW has a seemingly endless number of fans of the N54/N55/S55 engines, three straight-six turbo engines that are each capable of 750+ horsepower, but that doesn't mean they were without their faults! BMW's N54 had a notoriously rocky start with reliability due to multiple issues such as fuel injectors failing, turbos failing, serpentine belt failure, crank hubs coming loose, and more... BMW made multiple attempts to fix the issues plaguing the N54, but they could only do so much and the fixes rolled out seemed temporary at best. Following the N54, BMW released their updated N55 and S55 engines, giving many people hope that these engines would address the previous issues. Unfortunately, this was only some-what the case. Crank hubs and crank bolts continued to loosen over time and serpentine belts continued to shred themselves and get pulled into the oil pan through the front main seal. For all three engines, this meant a single failure could effectively turn your engine into an oversized paperweight. Luckily for us, the BMW community is full of skilled enthusiasts who have gladly taken up the task to offer solutions! The first headache to be addressed was the Crank Hub and Bolt. Using a simple plate that fits perfectly over your crank hub's hex-head bolt and mounts up against the damper, the crank bolt is effectively locked in place, preventing it from being able to back out until the plate is fully removed. Next up was the serpentine belt failures. It's not known what exactly causes the serpentine belt to split, but once it does, the pieces hanging off of the belt wrap around and behind the damper. This leads to the belt breaking up into smaller pieces and eventually getting pushed between the crank hub and rear main seal into the oil pan. These small pieces of debris get caught in and block the oil pickup, preventing oil flow and leading to engine failure. To prevent this, multiple aftermarket companies came up with their own versions of Crank Seal Plates. This plate is installed behind the front damper, blocking the opening that allows the serpentine belt to pass between the crank hub and seal, keeping debris out of your oil pan! Also included in this kit are the components to service your front Oil Cooler/Filter Housing gaskets, refresh your drive belt system, and install the aftermarket upgrades. Kit Features and Contents: Vargas Turbo Crank Bolt Capture Vargas Turbo Crank Seal Plate ECS Kevlar reinforced accessory belt OEM Belt Tensioner & Idler Pullies Liqui-Moly Longtime High Tech Engine Oil (5w-30) - 7 Liters OEM Hengst Oil Filter OEM Oil Filter/Cooler Housing Gaskets TMS Oil Change Sticker Genuine BMW Full-Strength Coolant - 1 Liter

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OEM Accessory Belt Service Kit - E70 X5 xDrive30i

T#:593727

Part#: E70N52ABSKT

Ships on Dec 31, 2026

$ 256.99

This product was last offered at the strikethrough price on
08-12-2026

$ 255.99 USD

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$ 255.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E36 Z3 M52 S52...

T#:22130428

Part#: 11281437929TKT

Ships on Nov 12, 2026

Sale - Save 8% $ 264.99

This product was last offered at the strikethrough price on
05-03-2026

$ 244.54 USD

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Sale - Save 8%

$ 264.99

This product was last offered at the strikethrough price on
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$ 244.54 USD

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Eliminate your squeaking accessory belt pulleys and cracked drive belts with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, an OEM A/C belt, belt tensioners, an idler pulley, and the hardware required for installation ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the belts, rollers, and tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F07/10 F06/12/...

T#:23482929

Part#: 8PK1478TKT

In Stock

Sale - Save 23% $ 167.99

This product was last offered at the strikethrough price on
05-03-2026

$ 129.72 USD

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Sale - Save 23%

$ 167.99

This product was last offered at the strikethrough price on
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$ 129.72 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and new pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Genuine BMW Accessory Belt Kit - E36 323/328/M3, Z3 2.3/2.8/M Coupe/R...

T#:374430

Part#: 11281437929KT2

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$ 763.99 USD

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$ 763.99 USD

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Service your drive belt system to prevent getting stuck on the side of the road. The tensioners, pulleys, and belt are all subject to failure over years of operation and excessive wear. This kit includes all of the replacements for common problem-parts to restore your belt system.

Kit includes:

2 Genuine BMW belts
Genuine BMW hydraulic tensioner assembly
2 Genuine BMW pulleys (one idler, one for tensioner assembly)
Genuine BMW A/C belt tensioner
Idler pulley bolt

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OEM Accessory Belt Kit Service Kit - E30 318is M42

T#:554408

Part#: E30318ISBELTKT

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$ 205.99 USD

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$ 205.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
1989-1991 E30 BWM 318is

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E39 540i, E38 ...

T#:23416543

Part#: 11287636377TKKT

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$ 364.99 USD

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$ 364.99 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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OEM Accessory Belt Service Kit - E38 740i/iL M62 (04/1997+)

T#:589762

Part#: PBTABE38M62KT

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$ 273.99

This product was last offered at the strikethrough price on
06-16-2026

$ 272.99 USD

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$ 272.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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Accessory Drive Belt Service Kit

We Price Match - Give Us A Call or Chat!

T#:593518

Part#: ADK0041P

Ships in 9 Business Days

$ 251.99 USD

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$ 251.99 USD

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E39 M5 ...

T#:23416509

Part#: 11287833264TKT

In Stock

$ 665.99 USD

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$ 665.99 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and the hardware required to install the new tensioner. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW 330e 530e ...

T#:22196328

Part#: 3PK968TKT

In Stock

Sale - Save 23% $ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 93.74 USD

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Sale - Save 23%

$ 121.99

This product was last offered at the strikethrough price on
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$ 93.74 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt and tensioner assembly. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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OEM Accessory Belt Service Kit - BMW F8X S55

T#:589853

Part#: PBTABF8XS55KT

Ships in 1-2 days

$ 433.99

This product was last offered at the strikethrough price on
07-07-2026

$ 374.99 USD

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$ 374.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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Accessory Drive Belt Kit - E6x, E53

T#:42200943

Part#: FB32011K

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$ 111.99 USD

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$ 111.99 USD

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This INA Accessory Drive Belt Kit from Turner Motorsport is the ideal upgrade for BMW owners looking to maintain peak performance, reliability, and long-term durability in their vehicle’s accessory systems.

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Accessory Belt Service Kit - HD Gates Belt - BMW B46TU/B48TU B58TU ...

T#:29798950

Part#: 11288650740TKT

In Stock at Vendor

Sale - Save 15% $ 141.99

This product was last offered at the strikethrough price on
05-03-2026

$ 121.31 USD

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Sale - Save 15%

$ 141.99

This product was last offered at the strikethrough price on
05-03-2026

$ 121.31 USD

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Having your accessory belt fail is a major inconvenience and can leave you on the side of the road if the alternator isn't charging and the mechanical water pump isn't turning. Over time the tensioner and the belt itself wears out and will eventually fail. This kit includes everything you need to service the belt drive system and keep everything in check. Included: Gates Green Heavy Duty Accessory Belt - Designed to exceed OE durability, felxibility, and longevity OEM Febi Belt Tensioner Genuine BMW Tensioner Hardware

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OEM INA Accessory Drive Belt Tensioner Kit - BMW E46 M54 (2003+) ...

T#:41897486

Part#: 5290053300

Ships in 8 Business Days

$ 251.99 USD

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$ 251.99 USD

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This OEM INA accessory belt tensioner kit is the perfect choice for refreshing your M54's drive belt system. Included in this kit: Drive Belt Tensioners (2) Idler Pulleys (2) Accessory Belts (2) Engine Water Pump

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Accessory Belt Service Kit - F3X F2X B46/B48

T#:30430718

Part#: 11288646475KT2

Ships in 2 Business Days

Sale - Save 19% $ 130.99

This product was last offered at the strikethrough price on
05-03-2026

$ 105.75 USD

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Sale - Save 19%

$ 130.99

This product was last offered at the strikethrough price on
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$ 105.75 USD

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Don't let an accessory belt failure leave you stranded! Over time, the tensioner and belt wear out, risking your alternator's ability to charge and your vehicle's overall reliability. Turner Motorsport has assembled a comprehensive belt drive service kit to keep everything in check and ensure smooth operation.

Key Benefits:

Complete Service Kit: Includes all necessary components to maintain your belt drive system. Enhanced Reliability: Prevents unexpected belt failures and keeps your vehicle running smoothly. Optimized Performance: Ensures your alternator and A/C system function efficiently. Kit Contents:

Accessory Belt Belt Tensioner Assembly A/C Belt Maintain your BMW's performance and reliability with the Turner Motorsport drive belt service kit!

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OEM Accessory Belt Service Kit - E36 323i/is, Z3 2.3 2.5

T#:589743

Part#: PBTAB323KT

Ships in 8 Business Days

Sale - Save 2% $ 349.11

This product was last offered at the strikethrough price on
06-23-2026

$ 342.70 USD

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Sale - Save 2%

$ 349.11

This product was last offered at the strikethrough price on
06-23-2026

$ 342.70 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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Accessory Drive Belt Kit - E60, E65, E53

T#:42200946

Part#: FB3224K

Ships in 8 Business Days

$ 202.99 USD

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$ 202.99 USD

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Restore confidence and performance to your BMW’s engine bay with the Accessory Drive Belt Kit a dependable upgrade for long-term reliability. Includes tensioner x2, serpentine belt and A/C belt.

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OEM Rein PRO Series Water Pump & Serpentine Belt Kit - BMW E60 535 N5...

T#:38161726

Part#: RSW0021

Ships in 4 Business Days

$ 711.23 USD

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$ 711.23 USD

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Includes a new electric water pump, serpentine belt, belt tensioners, and idler pulleys

OEM Accessory Belt Service Kit - E32 E34 E38 M60

T#:589745

Part#: PBTABE3XM60KT

Back Ordered

Sale - Save 10% $ 702.99

This product was last offered at the strikethrough price on
05-03-2026

$ 634.72 USD

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Sale - Save 10%

$ 702.99

This product was last offered at the strikethrough price on
05-03-2026

$ 634.72 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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Genuine BMW Accessory Belt Kit - BMW B46TU/B48TU B58TU

T#:29765752

Part#: 11288650740KT

Ships in 1-2 days

$ 228.99 USD

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$ 228.99 USD

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Having your accessory belt fail is a major inconvenience and can leave you on the side of the road if the alternator isn't charging and the mechanical water pump isn't turning. Over time the tensioner and the belt itself wears out and will eventually fail. This kit includes everything you need to service the belt drive system and keep everything in check. Included: Genuine BMW Accessory Belt Genuine BMW Belt Tensioner Genuine BMW Tensioner Hardware

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Air Conditioner Serpentine Belt - E46 M3

We Price Match - Give Us A Call or Chat!

T#:1282

Part#: 11287830946

Ships in 5 Business Days

$ 16.99

This product was last offered at the strikethrough price on
07-24-2026

$ 13.99 USD

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$ 13.99 USD

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This belt drives the air conditioning compressor for the AC system. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones. This belt fits 2001-2006 M3.

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Accessory Belt Service Kit W/ Kevlar Reinforced Belt - 80A Alternator...

T#:22196333

Part#: 11287636373T2KT

Ships in 1-2 days

Sale - Save 5% $ 120.99

This product was last offered at the strikethrough price on
03-27-2026

$ 114.42 USD

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Sale - Save 5%

$ 120.99

This product was last offered at the strikethrough price on
03-27-2026

$ 114.42 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, hydraulic tensioner, and two new pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E60 M5, E63/64...

T#:23516109

Part#: 6PK1084TKT

Ships in 1-2 days

$ 935.99 USD

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$ 935.99 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit W/ Kevlar Reinforced Belt - 70A Alternator...

T#:22196332

Part#: 11287636373TKT

Ships in 1-2 days

Sale - Save 6% $ 123.00

This product was last offered at the strikethrough price on
02-27-2026

$ 115.39 USD

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Sale - Save 6%

$ 123.00

This product was last offered at the strikethrough price on
02-27-2026

$ 115.39 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, hydraulic tensioner, and two new pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Serpentine Belt Kit - S58

T#:41661237

Part#: 11288581628T1KT

Ships in 1-2 days

$ 305.99 USD

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$ 305.99 USD

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Ensure your BMW S58-powered vehicle continues to perform at its best with this reliable and performance-oriented serpentine belt kit.

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E9X M3 S65 ...

T#:23416553

Part#: 11287841529KT

Ships in 1-2 days

$ 1,038.99 USD

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$ 1,038.99 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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OEM Accessory Belt Service Kit - E60/61 525 530

T#:589756

Part#: PBTABE60M54KT

Ships in 7 Business Days

$ 269.99 USD

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$ 269.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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A/C Accessory Belt Service Kit W/ Kevlar Reinforced Belt - E36 318i 3...

T#:22163421

Part#: 64551727378TKT

Ships in 1-2 days

Sale - Save 2% $ 69.99

This product was last offered at the strikethrough price on
05-03-2026

$ 68.85 USD

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Sale - Save 2%

$ 69.99

This product was last offered at the strikethrough price on
05-03-2026

$ 68.85 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt and adjuster pulley. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW F97/98 G8X...

T#:22163412

Part#: 11288581628TKT

In Stock

Sale - Save 2% $ 246.99

This product was last offered at the strikethrough price on
05-03-2026

$ 242.70 USD

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Sale - Save 2%

$ 246.99

This product was last offered at the strikethrough price on
05-03-2026

$ 242.70 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and the hardware required to install the new tensioner. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Basic Vibration Damper Replacement Kit w/ Specialty Tool Kit - E70 X5...

T#:27672134

Part#: 11238511371TKT6

Ships in 2 Business Days

Sale - Save 1% $ 577.99

This product was last offered at the strikethrough price on
05-03-2026

$ 573.46 USD

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Sale - Save 1%

$ 577.99

This product was last offered at the strikethrough price on
05-03-2026

$ 573.46 USD

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The vibration damper in the E70 X5 35d is a common failure item and can fail at as low as 60 thousand miles leaving you stranded. This kit includes everything needed to replace your vibration damper and service your drive belt system! Vibration Dampers (also called Harmonic Dampers or Harmonic Balancers) absorb and remove unwanted vibrations due to torsional twisting of the crankshaft. During cylinder combustions, the crank quickly flexes ever so slightly, resulting in resonance vibrations. These vibrations could lead to damage of the crankshaft or crank bearings over time if not accounted for. The vibration damper helps to eliminate these vibrations, thereby extending the life of your engine's mechanical components and preventing damage. If your vibration damper has failed, you will likely notice excess engine vibrations or shaking that will gradually get worse, especially around certain RPMs where the vibration resonance is most pronounced. This basic kit includes the components necessary to replace your damper with an OEM damper from Corteco, including two belts and the Corteco Vibration Damper pulley. Also included in this kit is a brand-new line of specialty tools from Schwaben designed specifically for this replacement! You will get a Crankshaft Pulley Turner Tool, Stretch Belt Remover/Installer, T50 Alternator Wrench, and a 15/16" Pass-Through Socket, all included to make swapping out your old damper a quick and easy process! Standard tools you might need but are not included: 8mm Drill Bit (to use as flywheel locking pin) 32mm Fan Clutch Wrench - You may want a second 32mm to hold the coupler in place 24mm Box Wrench - For releasing tensioner Torque Wrench - To torque new crankshaft bolts Breaker Bar - to drive the crankshaft bolts further

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Complete Vibration Damper Replacement Kit w/ Specialty Tool Kit - E70...

T#:27672133

Part#: 11238511371TKT5

Ships in 2 Business Days

Sale - Save 2% $ 710.99

This product was last offered at the strikethrough price on
06-22-2026

$ 696.95 USD

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Sale - Save 2%

$ 710.99

This product was last offered at the strikethrough price on
06-22-2026

$ 696.95 USD

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The vibration damper in the E70 X5 35d is a common failure item and can fail at as low as 60 thousand miles leaving you stranded. This kit includes everything needed to replace your vibration damper and service your drive belt system! Vibration Dampers (also called Harmonic Dampers or Harmonic Balancers) absorb and remove unwanted vibrations due to torsional twisting of the crankshaft. During cylinder combustions, the crank quickly flexes ever so slightly, resulting in resonance vibrations. These vibrations could lead to damage of the crankshaft or crank bearings over time if not accounted for. The vibration damper helps to eliminate these vibrations, thereby extending the life of your engine's mechanical components and preventing damage. If your vibration damper has failed, you will likely notice excess engine vibrations or shaking that will gradually get worse, especially around certain RPMs where the vibration resonance is most pronounced. This kit includes all of the components necessary to replace your damper with an OEM damper from Corteco, including belts, pulleys, hardware, and more. Also included in this kit is a brand-new line of specialty tools from Schwaben designed specifically for this replacement! You will get a Crankshaft Pulley Turner Tool, Stretch Belt Remover/Installer, T50 Alternator Wrench, and a 15/16" Pass-Through Socket, all included to make swapping out your old damper a quick and easy process! Standard tools you might need but are not included: 8mm Drill Bit (to use as flywheel locking pin) 32mm Fan Clutch Wrench - You may want a second 32mm to hold the coupler in place 24mm Box Wrench - For releasing tensioner Torque Wrench - To torque new crankshaft bolts Breaker Bar - to drive the crankshaft bolts further

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OEM Accessory Belt Service Kit - F10 528i/i xDrive

T#:593733

Part#: F10528ABSKT

Ships in 5 Business Days

$ 147.99

This product was last offered at the strikethrough price on
06-29-2026

$ 137.99 USD

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$ 137.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need to be replaced such as the belts, tensioners, and hardware.

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Genuine BMW Accessory Belt Kit - E39 M5

T#:376921

Part#: 11282248214KT

Ships in 3 Business Days

$ 1,097.99 USD

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$ 1,097.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
1996-2003 E39 BMW M5

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OEM Accessory Belt Kit - E30 M3

T#:554431

Part#: E30M3ACCKT

Ships in 7 Business Days

$ 93.99 USD

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$ 93.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes the belts and tensioner bar.

Fits the following BMWs:
1985-1991 E30 BWM M3

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OEM Accessory Belt Service Kit - E38 740i/iL (up to 04/97), E39 540i ...

T#:589856

Part#: PBTABM62KT

Back Ordered

Sale - Save 3% $ 531.99

This product was last offered at the strikethrough price on
05-03-2026

$ 514.84 USD

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Sale - Save 3%

$ 531.99

This product was last offered at the strikethrough price on
05-03-2026

$ 514.84 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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OEM Accessory Belt Service Kit - E38 750iL M73 5.4L (09/1998+) ...

T#:589873

Part#: PBTABE38M73KT

Back Ordered

$ 666.99 USD

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Qty

$ 666.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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OEM Accessory Belt Service Kit - E38 750iL M73 5.4L (up to 09/1998) ...

T#:589877

Part#: PBTABE38M73KT1

Back Ordered

$ 480.99 USD

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$ 480.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

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Accessory Belt Service Kit - OEM Continental Belt - BMW B46TU/B48TU B...

T#:29798955

Part#: 11288650740T2KT

Back Ordered

Sale - Save 19% $ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 98.77 USD

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Sale - Save 19%

$ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 98.77 USD

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Having your accessory belt fail is a major inconvenience and can leave you on the side of the road if the alternator isn't charging and the mechanical water pump isn't turning. Over time the tensioner and the belt itself wears out and will eventually fail. This kit includes everything you need to service the belt drive system and keep everything in check. Included: OEM Continental Accessory Belt OEM Febi Belt Tensioner Genuine BMW Tensioner Hardware

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Performance Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E4...

T#:22097548

Part#: 11281706545TKT

Back Ordered

Sale - Save 8% $ 263.99

This product was last offered at the strikethrough price on
05-03-2026

$ 241.79 USD

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Sale - Save 8%

$ 263.99

This product was last offered at the strikethrough price on
05-03-2026

$ 241.79 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes everything you need to service the belt drive system and keep everything in check, including the updated Hydraulic tensioner to keep your E46 driving like a dream. This kit also includes ECS Tuning's Kevlar reinforced belt for longer life and resistance. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E53 X5 M54 ...

T#:23482925

Part#: 4PK863CTKT

Back Ordered

Sale - Save 9% $ 219.99

This product was last offered at the strikethrough price on
05-03-2026

$ 201.15 USD

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Qty

Sale - Save 9%

$ 219.99

This product was last offered at the strikethrough price on
05-03-2026

$ 201.15 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E83 X3 M54 ...

T#:23482923

Part#: 4PK863BTKT

Back Ordered

Sale - Save 1% $ 283.99

This product was last offered at the strikethrough price on
05-03-2026

$ 279.92 USD

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Sale - Save 1%

$ 283.99

This product was last offered at the strikethrough price on
05-03-2026

$ 279.92 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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OEM Accessory Belt Service Kit - E90 335d

T#:554452

Part#: 335DACCKT

Ships in 7 Business Days

$ 232.09 USD

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Qty

$ 232.09 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need to be replaced such as the belts, tensioners, and hardware.

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Complete Vibration Damper Replacement Kit w/ Specialty Tool Kit - E90...

T#:27672135

Part#: 11238511371TKT7

Ships in 2 Business Days

$ 751.37 USD

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Qty

$ 751.37 USD

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The vibration damper in the 335d is a common failure item and can fail at as low as 60 thousand miles leaving you stranded. This kit includes everything needed to replace your vibration damper and service your drive belt system! Vibration Dampers (also called Harmonic Dampers or Harmonic Balancers) absorb and remove unwanted vibrations due to torsional twisting of the crankshaft. During cylinder combustions, the crank quickly flexes ever so slightly, resulting in resonance vibrations. These vibrations could lead to damage of the crankshaft or crank bearings over time if not accounted for. The vibration damper helps to eliminate these vibrations, thereby extending the life of your engine's mechanical components and preventing damage. If your vibration damper has failed, you will likely notice excess engine vibrations or shaking that will gradually get worse, especially around certain RPMs where the vibration resonance is most pronounced. This kit includes all of the components necessary to replace your damper with an OEM damper from Corteco, including belts, pulleys, hardware, and more. Also included in this kit is a brand-new line of specialty tools from Schwaben designed specifically for this replacement! You will get a Crankshaft Pulley Turner Tool, Stretch Belt Remover/Installer, T50 Alternator Wrench, and a 15/16" Pass-Through Socket, all included to make swapping out your old damper a quick and easy process! Standard tools you might need but are not included: 8mm Drill Bit (to use as flywheel locking pin) 32mm Fan Clutch Wrench - You may want a second 32mm to hold the coupler in place 24mm Box Wrench - For releasing tensioner Torque Wrench - To torque new crankshaft bolts Breaker Bar - to drive the crankshaft bolts further

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