Supertech Unclassified

BMW M3 S54 Intake valve 35x5.97x117.50mm/ SS/Blk. Nitrided/Stk.size ...

T#:641912

Part#: BMIVN-1040

Ships in 8 Business Days

$ 32.99 USD

Only available at this price

Add to Wish List

Qty

$ 32.99 USD

Only available at this price

Add to Wish List

BMW M3 S54/ Exhaust valve 30.5x5.95x126.10mm/ SS/Blk. Nitrided/Stk.si...

T#:641911

Part#: BMEVN-1040

Ships in 5 Business Days

$ 29.99 USD

Only available at this price

Add to Wish List

Qty

$ 29.99 USD

Only available at this price

Add to Wish List

BMW M50/52 Single Groove Intake valve 33x5.97x106.10mm/ SS/Blk. Nitri...

T#:3428565

Part#: BMIVN-1030S

Ships in 8 Business Days

$ 32.99 USD

Only available at this price

Add to Wish List

Qty

$ 32.99 USD

Only available at this price

Add to Wish List

BMW S54 Forged Connecting Rod/ 4340 alloy/ H beam/ ARP 3/8" - 2000 bo...

T#:36337145

Part#: CR-BMS54-H139

Ships in 8 Business Days

$ 194.99 USD

Only available at this price

Add to Wish List

Qty

$ 194.99 USD

Only available at this price

Add to Wish List

Valve Stem Seal - Set Of 16 - Upgraded Viton Seals

T#:29931717

Part#: VSI-MIN-R56KT

In Stock

$ 46.99 USD

Only available at this price

Add to Wish List

Qty

$ 46.99 USD

Only available at this price

Add to Wish List

Designed to withstand high RPMs and extreme temperatures, this complete kit of 16 gives you everything needed to overhaul your head

BWM S63 V8 Conical spring kit - 83lbs @35.7mm (Ex) 80@ 36mm (in) - 16...

T#:51110151

Part#: SPRK-BMS63B

Ships in 8 Business Days

$ 1,522.99 USD

Only available at this price

Add to Wish List

Qty

$ 1,522.99 USD

Only available at this price

Add to Wish List

Valve Stem Seal Intake Side - Priced Each

T#:9222685

Part#: VSI-BM50-I

Ships in 6 Business Days

$ 1.99 USD

Only available at this price

Add to Wish List

Qty

$ 1.99 USD

Only available at this price

Add to Wish List

Supertech BMW S52 Steel Spring Retainer - Set Of 24

T#:20056517

Part#: RET-HBK-ST-24

In Stock at Vendor

7% off MSRP $ 281.99

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

$ 261.99 USD

Only 0 available at this price

Limited Qty Sale

Add to Wish List

Qty

7% off MSRP

$ 281.99

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

$ 261.99 USD

Only 0 available at this price

Limited Qty Sale

Add to Wish List

Rev higher and drive faster with this performance steel spring set.

Valve Stem Seal - Priced Each - Upgraded Viton Seals

T#:29931716

Part#: VSI-MIN-R56

In Stock

$ 2.99 USD

Only available at this price

Add to Wish List

Qty

$ 2.99 USD

Only available at this price

Add to Wish List

Titanium Retainers - Set Of 8 - BMW B48

T#:49023066

Part#: RET-BMB48-TE-8

In Stock

$ 172.99

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

$ 157.99 USD

Only 1 available at this price

Limited Qty Sale

Add to Wish List

Qty

$ 172.99

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

$ 157.99 USD

Only 1 available at this price

Limited Qty Sale

Add to Wish List

Valve Stem Seals "Viton Seals" - Priced Each

T#:50934290

Part#: VSI-M6E

In Stock

$ 2.99

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

$ 1.99 USD

Only 3 available at this price

Limited Qty Sale

Add to Wish List

Qty

$ 2.99

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

$ 1.99 USD

Only 3 available at this price

Limited Qty Sale

Add to Wish List

Valve Stem Seal Exhaust Side - Priced Each

T#:9222684

Part#: VSI-BM60-E

Ships in 6 Business Days

$ 2.99 USD

Only available at this price

Add to Wish List

Qty

$ 2.99 USD

Only available at this price

Add to Wish List

87.50mm Piston Ring Set - Single Piston - 1x3.30/1.2x3.60/2.8x3.10mm ...

T#:44021158

Part#: R87.5-GNH8750

In Stock

$ 28.99

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

$ 25.99 USD

Only 6 available at this price

Limited Qty Sale

Add to Wish List

Qty

$ 28.99

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

$ 25.99 USD

Only 6 available at this price

Limited Qty Sale

Add to Wish List

84.00mm Piston Ring Set - Single Piston - 1x3.10/1.2x3.50/2.8x3.10mm,...

T#:44021159

Part#: R84-GNH8400

In Stock at Vendor

$ 28.99 USD

Only available at this price

Add to Wish List

Qty

$ 28.99 USD

Only available at this price

Add to Wish List

Valve Stem Seals "Viton Seals" - Set of 8

T#:50934530

Part#: VSI-M6E-8

In Stock at Vendor

$ 16.99 USD

Only available at this price

Add to Wish List

Qty

$ 16.99 USD

Only available at this price

Add to Wish List

Supertech BMW B58 82mm Bore 36cc 11:1 CR Pistons - Set Of 6 (Excl Rin...

T#:53820942

Part#: P4-MINB48-82-CR1

In Stock at Vendor

$ 1,106.99 USD

Only available at this price

Add to Wish List

Qty

$ 1,106.99 USD

Only available at this price

Add to Wish List

Valve Stem Seal Exhaust Side - Viton Seals - Set Of 8

T#:50934389

Part#: VSI-BM60-EKT

Ships in 6 Business Days

$ 16.99 USD

Only available at this price

Add to Wish List

Qty

$ 16.99 USD

Only available at this price

Add to Wish List

Valve Stem Seals "Viton Seals" - Priced Each - Set Of 16

T#:50934587

Part#: VSI-M6EKT

Ships in 5 Business Days

$ 32.99 USD

Only available at this price

Add to Wish List

Qty

$ 32.99 USD

Only available at this price

Add to Wish List

MINI R55 to R61 Titanium Retainer - Set Of 16

T#:31324212

Part#: RET-MC56/T1KT

Ships in 5 Business Days

$ 319.99 USD

Only available at this price

Add to Wish List

Qty

$ 319.99 USD

Only available at this price

Add to Wish List

Upgrade your MINI's performance and durability with the Titanium Retainer Set. Specifically designed for MINI R55 to R61 models, this set of 16 titanium retainers offers superior strength and lightweight construction compared to standard components. Engineered to withstand high stress and extreme conditions, these retainers enhance reliability and performance.

Superior Strength: Titanium construction provides enhanced durability and resistance to stress.
Lightweight Design: Reduces overall weight, improving vehicle dynamics.
Enhanced Performance: Ideal for high-performance applications and demanding driving conditions.
Direct Fit: Engineered specifically for MINI R55 to R61 models for easy installation.

These titanium retainers are a perfect upgrade for MINI enthusiasts seeking improved performance and longevity.

Show More Show Less

Forged Pistons (Set Of 4) - 82.50mm (0.5mm+) P4-MINB48-825-CR11-4 ...

T#:29234334

Part#: P4-MINB48825CR11

Ships in 8 Business Days

$ 798.99 USD

Only available at this price

Add to Wish List

Qty

$ 798.99 USD

Only available at this price

Add to Wish List

Performance Valve Springs Kit - Single Groove SPRK-TS1015-MC2 ...

T#:40545944

Part#: SPRK-TS1015/MC-2

Ships in 8 Business Days

$ 789.99 USD

Only available at this price

Add to Wish List

Qty

$ 789.99 USD

Only available at this price

Add to Wish List

Supertech 7mm Exhaust Valve Stem Seal - Viton - BMW S14 S38

T#:641012

Part#: VS-VW7E

Ships in 5 Business Days

$ 1.99 USD

Only available at this price

Add to Wish List

Qty

$ 1.99 USD

Only available at this price

Add to Wish List

Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 9.8mm/.385" Seal OD: 13.2mm/.520"

Show More Show Less