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BMW Coolant & Radiator Hoses

We offer replacement hoses from several OE brands that we trust, along with performance silicone upgrades for those who want increased wear resistance compared to factory rubber.
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Bremmen Parts - Corporate Logo
T#:36981061
Part#: 11537502000
In Stock
Sale - Save 17% $ 35.99

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05-03-2026

$ 29.74 USD
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$ 35.99

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$ 29.74 USD
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Water pipes play a crucial role in maintaining proper engine cooling. If cracked, they must be replaced immediately to prevent engine overheating. This water pipe runs from the rear of the water pump housing to the expansion tank hose. It comes complete with all necessary seals for a hassle-free installation.
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Bremmen Parts - Corporate Logo
T#:30729014
Part#: 17127604542
In Stock
Sale - Save 12% $ 41.99

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

$ 36.89 USD
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Sale - Save 12%
$ 41.99

This product was last offered at the strikethrough price on
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$ 36.89 USD
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Bremmen Parts - Corporate Logo
T#:36913374
Part#: 17117524710
In Stock
Sale - Save 21% $ 36.99

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05-03-2026

$ 29.37 USD
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Sale - Save 21%
$ 36.99

This product was last offered at the strikethrough price on
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$ 29.37 USD
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This hose connects to the lower coolant pipe on the passenger side of vehicles equipped with automatic transmissions.

Bremmen Parts - Corporate Logo
T#:30729017
Part#: 17127576371
In Stock
Sale - Save 20% $ 128.99

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

$ 102.81 USD
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Sale - Save 20%
$ 128.99

This product was last offered at the strikethrough price on
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$ 102.81 USD
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Bremmen Parts - Corporate Logo
T#:36032354
Part#: 11537516414
In Stock
Sale - Save 23% $ 18.99

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

$ 14.68 USD
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Sale - Save 23%
$ 18.99

This product was last offered at the strikethrough price on
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$ 14.68 USD
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Bremmen Parts - Corporate Logo
T#:36100134
Part#: 11537505228
In Stock
$ 52.99

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

$ 38.99 USD
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$ 52.99

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

$ 38.99 USD
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This OEM-style upper radiator hose connects the upper radiator outlet to the thermostat housing.

If you're experiencing a leak or wear in your radiator hose, replace it with this high-quality, cost-effective replacement from Bremmen Parts to restore optimal cooling system performance.

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Bremmen Parts - Corporate Logo
T#:30729025
Part#: 17127531581
In Stock
Sale - Save 16% $ 28.99

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05-03-2026

$ 24.27 USD
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Sale - Save 16%
$ 28.99

This product was last offered at the strikethrough price on
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$ 24.27 USD
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Bremmen Parts - Corporate Logo
T#:50381391
Part#: 17127586774
In Stock
New Item
$ 69.99

This product was last offered at the strikethrough price on
08-07-2026

$ 58.99 USD
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$ 58.99 USD
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Replacement coolant hose for your BMW that connects the oil filter housing and heater core pipe to the radiator. Replace old, leaking coolant hoses to prevent coolant loss and overheating.

Bremmen Parts - Corporate Logo
T#:30729015
Part#: 17127599450
Ships on Dec 2, 2026
Sale - Save 20% $ 50.99

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05-03-2026

$ 40.79 USD
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$ 50.99

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Bremmen Parts - Corporate Logo
T#:30729026
Part#: 17123413819
In Stock
$ 46.99

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05-03-2026

$ 34.99 USD
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$ 46.99

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$ 34.99 USD
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Bremmen Parts - Corporate Logo
T#:39768309
Part#: 11531741409
In Stock
Sale - Save 22% $ 19.99

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05-03-2026

$ 15.50 USD
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$ 19.99

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$ 15.50 USD
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Bremmen Parts - Corporate Logo
T#:36981049
Part#: 17127617377
In Stock
Sale - Save 21% $ 66.99

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05-03-2026

$ 53.03 USD
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$ 66.99

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Bremmen Parts - Corporate Logo
T#:36100127
Part#: 11531705224
In Stock
Sale - Save 21% $ 36.99

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05-03-2026

$ 29.37 USD
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Sale - Save 21%
$ 36.99

This product was last offered at the strikethrough price on
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$ 29.37 USD
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Over time, and with prolonged exposure to high-temperature coolant, the hoses in your vehicle's cooling system endure significant wear and tear. Made from reinforced rubber, these hoses can fail in various ways, including splitting near hose clamps, swelling, cracking, or even rupturing completely. Any of these failures can lead to coolant loss and leave you stranded. Replace your coolant hoses at the first sign of wear to ensure your engine stays properly cooled and running reliably.
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Bremmen Parts - Corporate Logo
T#:36981059
Part#: 11537541992
In Stock
Sale - Save 21% $ 33.99

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05-03-2026

$ 26.92 USD
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$ 33.99

This product was last offered at the strikethrough price on
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$ 26.92 USD
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This coolant outlet hose connects the cylinder head to the thermostat housing and is a critical component of the cooling system. For many N54 owners, the "Mickey Mouse" flange is a common failure point. This plastic connector is vulnerable to degradation from heat, exposure to chemicals, and wear over time.

If your outlet hose has failed or the cylinder head flange is leaking, it’s best to replace the entire assembly for a reliable and long-lasting repair.

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Bremmen Parts - Corporate Logo
T#:50381415
Part#: 17127646896
In Stock
New Item
$ 44.99

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

$ 32.99 USD
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$ 44.99

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05-03-2026

$ 32.99 USD
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Coolant hoses and the plastic connectors can crack over time, leading to coolant leaks. Eliminate coolant leaks with a brand new hose.

Bremmen Parts - Corporate Logo
T#:36981064
Part#: 11531436406
In Stock
$ 31.99

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

$ 24.99 USD
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$ 31.99

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

$ 24.99 USD
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Over time, prolonged exposure to high-temperature coolant can take a toll on your vehicle's hoses. Made from reinforced rubber, these hoses are prone to wear and failure in various ways, including splitting at hose clamps, swelling, cracking, or breaking. Any of these issues can lead to coolant loss and potentially leave you stranded. Replacing your hoses at the first sign of wear is essential to maintaining a properly functioning cooling system.

This replacement hose is designed with the correct diameter, bends, and length for a precise fit, making it an ideal solution for swelled or damaged hoses. With straightforward installation, this hose provides peace of mind, whether you're embarking on a long road trip or simply commuting to work.

When replacing your radiator hose, some coolant loss is unavoidable. Browse our website to find the exact replacement coolant and other parts for your vehicle, delivered straight to your door. Don’t forget to order a new thermostat housing as well—factory plastic units often crack or warp during removal, and replacing them ensures a complete and reliable repair.

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Bremmen Parts - Corporate Logo
T#:36100154
Part#: 11531705223
In Stock
Sale - Save 20% $ 46.99

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

$ 37.53 USD
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Sale - Save 20%
$ 46.99

This product was last offered at the strikethrough price on
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$ 37.53 USD
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Over time, prolonged exposure to high-temperature coolant can take a toll on your vehicle's hoses. Made from reinforced rubber, these hoses are prone to wear and failure in various ways, including splitting at hose clamps, swelling, cracking, or breaking. Any of these issues can lead to coolant loss and potentially leave you stranded. Replacing your hoses at the first sign of wear is essential to maintaining a properly functioning cooling system.

This replacement hose is designed with the correct diameter, bends, and length for a precise fit, making it an ideal solution for swelled or damaged hoses. With straightforward installation, this hose provides peace of mind, whether you're embarking on a long road trip or simply commuting to work.

When replacing your radiator hose, some coolant loss is unavoidable. Browse our website to find the exact replacement coolant and other parts for your vehicle, delivered straight to your door. Don’t forget to order a new thermostat housing as well—factory plastic units often crack or warp during removal, and replacing them ensures a complete and reliable repair.

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Bremmen Parts - Corporate Logo
T#:5649968
Part#: 11127810707
In Stock
$ 17.99

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05-03-2026

$ 13.99 USD
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$ 17.99

This product was last offered at the strikethrough price on
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$ 13.99 USD
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Genuine BMW - Corporate Logo
T#:6533
Part#: 07129952104
In Stock
$ 3.99 USD
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GENUINE BMW HOSE CLAMP 07129952104
Precision Raceworks - Corporate Logo
T#:38094360
Part#: 601-0003
In Stock
$ 24.99 USD
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The Black Market Parts (by Precision Raceworks) BMW Billet Coolant Flange was designed as a replacement for the factory plastic flange that is found in the hose that connects the thermostat to the cylinder head. The plastic flange commonly cracks, which leads to coolant loss and engine overheating. Replace your coolant flange before disaster occurs and leaves you stuck on the side of the road.
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Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
In Stock
Sale - Save 3% $ 3.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3.87 USD
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$ 3.99

This product was last offered at the strikethrough price on
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Starting at $ 3.87 USD
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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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Rein - Corporate Logo
T#:593535
Part#: CHC0609
In Stock
$ 36.06 USD
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Made from high-strength aluminum vs the OEM plastic prone to failure.
Rein - Corporate Logo
T#:7460
Part#: 17127531579
In Stock
$ 44.99 USD
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This is the upper radiator hose that goes from the engine to the top of the radiator with either N51 or N52 enigne.

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i Convertible
2009+ Z4 BMW Z4 sDrive30i
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Rein - Corporate Logo
T#:33679696
Part#: 11118511205
In Stock
$ 50.99 USD
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$ 50.99 USD
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Plastic coolant flanges become brittle over time, which can cause them to crack and fail. Prevent overheating and coolant loss with this OEM Rein upgraded aluminum coolant flange.


ECS - Corporate Logo
T#:599846
Part#: 004503LA01
In Stock
Sale - Save 15% $ 109.99

This product was last offered at the strikethrough price on
06-14-2026

$ 93.49 USD
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The perfect upgrade for your connection between your thermostat and cylinder head. Designed using durable silicone and billet aluminum to greatly outlast the OE rubber and plastic combination. Some of the weakest points of the cooling systems in BMW's can come down to the OE plastic fittings breaking down from the constant changes in temperature, softening these plastic components. When this happens, even simply moving the hose slightly could cause the fitting to crack, causing the coolant to leak all over. The ECS design silicone hose with billet aluminum adapter retains OE fitment with superior strength to not only handle the performance, but also stand up to the wear and tear of a daily driver. Features: Manufactured from billet 6061-T6 and type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic Will not become brittle and fatigue over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone OE rubber hose. Flourosilicone lined internal layer for exceptional chemical resistance. Silicone offers reduced thermal conductivity as well as improved resistance to ozone and UV degradation for improved performance and durability. Follows OEM form for perfect fitment. Utilizes OEM O-ring 11537545278 to ensure a proper seal. Replaces Genuine BMW Part Number: 11537598234
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ECS - Corporate Logo
T#:37892077
Part#: 006402LA03
In Stock
Sale - Save 25% $ 104.99

This product was last offered at the strikethrough price on
06-14-2026

$ 78.74 USD
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$ 104.99

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Over time, factory rubber hoses break down and eventually fail as a result of consistent exposure to chemical-rich antifreeze and hot engine bay temperatures. While all coolant hoses are prone to failure, the expansion tank hose is especially susceptible to failure. To fix this issue, ECS has created the ultimate performance hose upgrade! Crafted from heavy-duty, fiber-reinforced silicone, this ECS Exact-Fit Silicone Expansion Tank Hose withstands higher temperatures and greater pressure than the factory rubber alternative. Engineered to resist electrochemical degradation, it’s tested for continuous operation at 250°F and over 45 psi, ensuring improved reliability, enhanced flow, and reduced turbulence. To further improve upon the factory hose design, ECS engineers developed precision-machined billet aluminum "Quick Connect" hose ends. Unlike the OEM plastic counterparts, these robust components resist heat-induced failure, ensuring long-term durability and reliability. Replaces OEM Part Numbers: 17128570061, 17128507235. Installation is straightforward: begin by removing the factory overflow hose and retaining clips. Transfer the OEM metal clips from the factory connector to the new billet fittings, then press the fittings onto the expansion tank and upper coolant hose. The included silicone hose is routed through the OEM path and securely clamped onto the billet fittings. After installation, the fittings can stay in place, only the silicone needs to be removed for future maintenance. Key Benefits: Direct OEM Fitment – Retains factory hose routing while eliminating the weaknesses of rubber construction. High-Temperature Resistance – Silicone material withstands extreme heat and chemicals for long-term durability. 2-Ply, Fiber-Reinforced Fluorosilicone Construction – Provides superior resistance to glycol-based coolant and other harsh fluids. Upgraded Billet Aluminum Quick-Connect Ends – CNC-machined from 6061-T6 aluminum with integrated O-rings, ensuring a secure, leak-free connection that won’t degrade over time. Easy Installation – Includes stainless steel clamps for a hassle-free, bolt-on upgrade.
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Rein - Corporate Logo
T#:568810
Part#: 17127604542
In Stock
$ 45.99 USD
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This hose goes from the radiator to the oil cooler. After years of use and exposure to heat, the hoses in your car can dry up and crack, resulting in nasty leaks - or worse. Replace your rotted, leaking hoses before they lead to larger problems.
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Genuine BMW - Corporate Logo
T#:6939
Part#: 11531705210
In Stock
$ 66.99 USD
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This is the Genuine BMW plastic heater inlet pipe that connects the cylinder head to the heater inlet on cars with the M52 or M54 engine.The plastic on this hose becomes brittle over time and eventually leads to failure.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i - M54 engine
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
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Rein - Corporate Logo
T#:38789910
Part#: CHK0940
In Stock
$ 73.99 USD
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$ 73.99 USD
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The OE plastic connector is a frequent failure point due to brittleness and cracking caused by repeated thermal cycling and hydrolysis. Hydrolysis, the breakdown of plastic or rubber by water exposure, weakens the structure over time, leading to failure. To combat these issues, Rein’s upgraded connectors are constructed from high-strength aluminum, eliminating the vulnerabilities of plastic connectors and ensuring long-term durability.
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Genuine BMW - Corporate Logo
T#:360688
Part#: 11537502525
Ships in 1-2 days
$ 90.99 USD
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$ 90.99 USD
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Replace your cracked/broken coolant pipe with this Genuine BMW pipe to ensure long term reliability and perfect fitment.

Rein - Corporate Logo
T#:340690
Part#: 17127540127
In Stock
$ 40.99 USD
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The hose that comes off of the top outlet on the radiator
Rein - Corporate Logo
T#:388683
Part#: 17127564478
In Stock
$ 33.99 USD
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$ 33.99 USD
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Replace split, hard, or bulging hoses

Rein - Corporate Logo
T#:362446
Part#: 11531710048
In Stock
$ 4.07 USD
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Seals the rear of the water transfer pipe to the block

Genuine BMW - Corporate Logo
T#:6495
Part#: 07119963300
In Stock
$ 1.99 USD
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$ 1.99 USD
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GENUINE BMW GASKET RING 07119963300
Rein - Corporate Logo
T#:2306
Part#: 11537830716
In Stock
$ 33.99

This product was last offered at the strikethrough price on
05-06-2026

$ 22.99 USD
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$ 22.99 USD
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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure. This hose replaces the Upper radiator hose that connects the thermostat housing to the radiator.

This Upper Radiator Hose fits the following BMWs:
2001-2006 E46 3 Series M3, M3 Convertible

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Packaged by Turner - Corporate Logo
T#:24212306
Part#: E9XN52CHKT
Ships in 4 Business Days
Sale - Save 8% $ 189.99

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

$ 175.64 USD
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Sale - Save 8%
$ 189.99

This product was last offered at the strikethrough price on
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$ 175.64 USD
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Replace your cooling system hoses with this complete kit including coolant


Rein - Corporate Logo
T#:45791752
Part#: 11127806196
In Stock
$ 69.99

This product was last offered at the strikethrough price on
03-08-2026

$ 58.99 USD
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$ 58.99 USD
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Plastic coolant flanges become brittle over time, leading to cracks and coolant leaks. Upgrade to an aluminum flange to avoid this issue altogether!
Rein - Corporate Logo
T#:379786
Part#: 17127510952
In Stock
$ 25.09

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

$ 24.95 USD
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$ 24.95 USD
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A common source of cooling system failure
Genuine BMW - Corporate Logo
T#:46445
Part#: 17128570061
In Stock
9% off MSRP $ 54.77

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 49.99 USD
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9% off MSRP
$ 54.77

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 49.99 USD
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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

Genuine BMW radiator hoses are always a perfect option when performing maintenance thanks to their high quality and longevity.

This item fits the following BMW Chassis:
F22,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
N55

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Rein - Corporate Logo
T#:403979
Part#: 11537545890
In Stock
$ 20.99 USD
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Connects from the top of the thermostat housing to the engine block

Genuine BMW - Corporate Logo
T#:7432
Part#: 17111712788
In Stock
$ 5.94 USD
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This is the Genuine BMW Coolant bleeder screw. We recommend a heavy duty Aluminum replacement from ECS Tuning if you do not want to replace this part again when it fails.


Genuine BMW Vent Screw
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E53 48IS,E30,E34,E36,E38,E39,E46,E53 X5 X5,E83 X3,E85 Z4,E86 Z4,E90
 

 

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Rein - Corporate Logo
T#:594294
Part#: 11537502525
In Stock
$ 55.99 USD
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BMW M52 M54 Water Pipe is an essential replacement part designed to ensure long-term reliability and optimal performance for your BMW's cooling system. Engineered to replace cracked or broken coolant pipes, this high-quality water pipe from Turner Motorsport guarantees a perfect fit and dependable service. Investing in this replacement pipe helps prevent overheating and potential engine damage, maintaining your vehicle's performance and longevity.

  • Reliable replacement: Designed to replace cracked or broken coolant pipes for improved engine cooling.
  • Optimal fitment: Engineered to ensure a perfect fit and seamless installation.
  • Durable construction: Built with high-quality materials to withstand engine temperatures and environmental conditions.
  • Preventative maintenance: Helps avoid overheating and potential engine damage by ensuring a reliable coolant flow.
  • Vehicle compatibility: Specifically designed for BMW M52 and M54 engine models.

Upgrade your BMW’s cooling system with the BMW M52 M54 Water Pipe from Turner Motorsport for enhanced reliability and performance.

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Rein - Corporate Logo
T#:348982
Part#: 11537521049
In Stock
$ 17.99 USD
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Connects from the water pump to the thermostat
Genuine BMW - Corporate Logo
T#:6936
Part#: 11531436122
In Stock
$ 55.99 USD
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This is the engine coolant hose that goes from the coolant reservoir / expansion tank to the top of the radiator. When replacing any cooling component it is a good idea to check all radiator hoses and replace as necessary.

This item fits the following BMWs:
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2001-2002 Z3 BMW Z3 M Roadster M Coupe
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URO - Corporate Logo
T#:13181
Part#: 17111723521
In Stock
$ 6.42 USD
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This is the small diameter overflow hose that goes from the coolant expansion tank to the radiator.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-1998 Z3 BMW Z3 2.8
1998-2000 Z3 BMW M Roadster M Coupe
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Race German - Corporate Logo
T#:6827887
Part#: RGCTSAM12
Ships in 3 Business Days
$ 35.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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Genuine BMW - Corporate Logo
T#:368716
Part#: 64211380527
Ships in 1-2 days
4% off MSRP $ 46.22

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 44.58 USD
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4% off MSRP
$ 46.22

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 44.58 USD
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Genuine BMW - Corporate Logo
T#:360756
Part#: 17127531579
In Stock
9% off MSRP $ 99.65

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 90.65 USD
Free Shipping
9% off MSRP
$ 99.65

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 90.65 USD
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This is the upper radiator hose that goes from the engine to the top of the radiator with either N51 or N52 enigne.

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i Convertible
2009+ Z4 BMW Z4 sDrive30i

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Rein - Corporate Logo
T#:14593
Part#: 11531740649
In Stock
$ 30.99

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

$ 18.99 USD
Free Shipping on orders $49 and up
$ 18.99 USD
Free Shipping on orders $49 and up
This is the radiator expansion tank return hose for the cooling system on E36 models with the M52 or S52 engine. This hose goes from the expansion tank to the main coolant return pipe.

This item fits the following BMWs:
1996-1998 E36 BMW 323is 323ic 328i 328is 328ic M3
1996-1998 Z3 BMW Z3 2.8
1998-2000 Z3 BMW M Roadster M Coupe
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