BMW Internal Engine Parts for BMW Z Series G29 (2019+)

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Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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5mm Single Groove Valve Keeper - Set Of 24
5mm Single Groove Valve Keeper - Set Of 24
Supertech - Corporate Logo
T#:21604314
Part#: KPR-5.0-7S-24
In Stock
$ 72.99

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

$ 67.99 USD
Limited Qty Sale
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$ 72.99

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

$ 67.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Add to Wish List
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
Valve Stem Seal Intake Side - Set Of 8 - BMW MINI B38 B46/48 ...
Supertech - Corporate Logo
T#:14783496
Part#: VSI-BM50-IKT
Ships in 6 Business Days
$ 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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Performance Conical Valve Spring - Set Of 24
Performance Conical Valve Spring - Set Of 24
B58B30 Applications Only
Supertech - Corporate Logo
T#:21604324
Part#: SPR-FE20BE-24
Ships in 8 Business Days
$ 471.99 USD
Free Shipping on orders $49 and up
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$ 471.99 USD
Free Shipping on orders $49 and up
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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm
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BMW B58 3.0L VAC Performance Coated Rod Bearing Kit
BMW B58 3.0L VAC Performance Coated Rod Bearing Kit
VAC Motorsports - Corporate Logo
T#:31158824
Part#: VAC-HPRBK-B58
Ships on Sep 18, 2026
$ 629.99 USD
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$ 629.99 USD
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BMW B58 3.0L VAC Performance Coated Rod Bearing Kit

The BMW B58 3.0L VAC Performance Coated Rod Bearing Kit offers an exceptional upgrade for performance enthusiasts seeking superior reliability and durability. These bearings are crafted with precision and feature a high-quality coating that enhances their performance. Unlike conventional treated bearings, this kit includes a physical coating layer that combines excellent embeddability with dry-lubricant properties, making it ideal for BMW engines.

  • Precision Engineering: Manufactured with high precision and repeatability for optimal performance.
  • Advanced Coating: Features a physical coating layer for superior embeddability and dry-lubricant properties.
  • Enhanced Tolerance: Designed to run well across engine tolerances, reducing typical failures associated with OEM bearings.
  • Improved Cold Starts: Ideal for both street and race engines, providing reliable performance during cold starts.
  • Performance Upgrade: Offers a significant upgrade over OEM bearings, enhancing engine reliability and longevity.
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Supertech High Performance Valve And Spring Kit - B58
Supertech High Performance Valve And Spring Kit - B58
Supertech - Corporate Logo
T#:641511
Part#: SUP-HPVK-B58
Ships on Sep 18, 2026
$ 2,339.99 USD
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$ 2,339.99 USD
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Upgrade your valvetrain with Supertech components Kit Contains: 12 Nitride Intake Valves 24 Intake Valve Keepers 12 Inconel Exhaust Valves 24 Exhaust Valve Keepers 24 High Performance Valve Springs 24 Titanium Retainers
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5mm Single Groove Valve Keeper - Priced Each
5mm Single Groove Valve Keeper - Priced Each
Supertech - Corporate Logo
T#:21604312
Part#: KPR-5.0-7S
Back Ordered
$ 3.99 USD
Free Shipping on orders $49 and up
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$ 3.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Two required per valve, necessary use with certain supertech valves 5.0mm single groove

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