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Supertech BMW Engine Parts for BMW I12 i8 B38 1.5L

Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Valve Springs (2)

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5mm Single Groove Valve Keeper - Set Of 24

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:21604314

Part#: KPR-5.0-7S-24

In Stock

$ 72.99 USD

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$ 72.99 USD

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Two required per valve, for use with certain supertech valves 5.0mm single groove

Valve Stem Seal Intake Side - Set Of 8 - BMW MINI B38 B46/48 ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:14783496

Part#: VSI-BM50-IKT

Ships in 6 Business Days

$ 91.99

This product was last offered at the strikethrough price on
01-14-2026

$ 14.99 USD

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$ 14.99 USD

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Supertech Valve Seals are the final piece of the puzzle for your performance valvetrain. This is for a complete valve stem seal repair for the Intake side, you will need 8 of a different part for the exhaust side.

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5mm Single Groove Valve Keeper - Priced Each

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:21604312

Part#: KPR-5.0-7S

Back Ordered

$ 3.99 USD

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$ 3.99 USD

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Two required per valve, necessary use with certain supertech valves 5.0mm single groove

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Supertech BMW Engine Parts for BMW I12 i8 B38 1.5L

Sub-Categories

5mm Single Groove Valve Keeper - Set Of 24

Valve Stem Seal Intake Side - Set Of 8 - BMW MINI B38 B46/48 ...

5mm Single Groove Valve Keeper - Priced Each

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