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BMW Internal Engine Parts

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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Turner Motorsport - Corporate Logo
T#:34147762
Part#: B58-WPC-RB
In Stock
Sale - Save 53% $ 401.99

This product was last offered at the strikethrough price on
05-15-2026

$ 190.00 USD
Free Shipping on orders $49 and up
Sale - Save 53%
$ 401.99

This product was last offered at the strikethrough price on
05-15-2026

$ 190.00 USD
Free Shipping on orders $49 and up

Upgrade your engine build with Turner's WPC-treated Race Series Bearings, engineered for serious performance enthusiasts. Starting with ACL’s high-performance bearing shells, these Race Series bearings are built to withstand extreme RPMs and stress. Utilizing a "Duraglide" tri-metal construction and a high-strength overlay plate, these bearings offer superior oiling and heat resistance for high-RPM operation.

Our WPC-treated bearings take ACL’s already impressive design and enhance it even further. The WPC treatment process strengthens and smooths the bearing surface by firing high-speed, ultra-fine particles at the bearing shells, reducing friction and improving durability. This advanced surface treatment ensures smoother operation and improved heat dissipation, which are critical for any high-performance engine.

Key Features:

Duraglide Tri-Metal Construction: ACL's Race Series bearings feature a high-strength overlay for enhanced performance. Optimized Oiling: Designed to promote better oil flow during high-RPM conditions. Precise Fitment: Manufactured with OEM-level precision using micron tolerance machining. WPC-Treated for Strength: Surface treatment adds strength and reduces friction for improved engine performance. No Flash Plating: Allows for better heat transfer and bearing retention. Thermal Discharge Process: Smoother, stronger components through WPC’s unique thermal discharge technology. Enhanced Heat and Friction Resistance: Built to combat the biggest enemies of high-performance engines. Don’t settle for standard bearings—choose Turner Motorsport WPC-treated Race Series Bearings for the ultimate engine performance upgrade. Perfect for your next engine rebuild or rod bearing service!

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Timing Chain Guide Rail - Left
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:5471008
Part#: 11311704945
In Stock
Sale - Save 38% $ 41.61

This product was last offered at the strikethrough price on
08-24-2026

$ 25.99 USD
Free Shipping on orders $49 and up
Sale - Save 38%
$ 41.61

This product was last offered at the strikethrough price on
08-24-2026

$ 25.99 USD
Free Shipping on orders $49 and up
Lower portion for bank 2 (5-8) This item fits the following BMWs: 1997-1998 E39 BMW 540i 1996-1998 E38 BMW 740i 740ill 1996-1999 E31 BMW 840i 840ci
TIMING CHAIN WITH TENSION RAIL
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:57231560
Part#: 11318658027
In Stock
New Item
Sale - Save 15% $ 109.99

This product was last offered at the strikethrough price on
09-16-2026

$ 93.49 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 109.99

This product was last offered at the strikethrough price on
09-16-2026

$ 93.49 USD
Free Shipping on orders $49 and up

URO Cam Gear - Exhaust - E60 E9X Z4 N54 3.0L
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:53079364
Part#: 11367540348
Ships in 1 Business Day
New Item
$ 177.99 USD
Free Shipping on orders $49 and up
A common source of exhaust-related codes, VANOS, and boost-related issues can often be traced back to this cam gear. If yours is worn and failed, replace it with this quality replacement part from URO.
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URO Exhaust Variable Valve Timing Sprocket - N20
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55749602
Part#: 11367583819
Ships in 1 Business Day
New Item
$ 194.99 USD
Free Shipping on orders $49 and up
The variable valve timing system on modern BMW engines is critical for both daily street driveability and wide-open throttle performance. When the factory exhaust gear wears down, it compromises the responsiveness of your BMW powerplant.
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Variable Valve Timing Sprocket
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55749603
Part#: 11367598002
Ships in 1 Business Day
New Item
$ 227.99 USD
Free Shipping on orders $49 and up
The URO Exhaust VVT Sprocket is designed to drop right into your cylinder head and restore crisp, reliable valve timing under all driving conditions.

Intake Hydraulic Tappet - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:56797117
Part#: 11337548690
Ships on Dec 15, 2026
New Item
Sale - Save 10% $ 10.99

This product was last offered at the strikethrough price on
10-08-2026

$ 9.89 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 10.99

This product was last offered at the strikethrough price on
10-08-2026

$ 9.89 USD
Free Shipping on orders $49 and up
Rocker Arm - Set Of 8
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:56507832
Part#: 11337559797
Ships on Dec 15, 2026
New Item
Sale - Save 10% $ 99.99

This product was last offered at the strikethrough price on
10-08-2026

$ 89.99 USD
Sale - Save 10%
$ 99.99

This product was last offered at the strikethrough price on
10-08-2026

$ 89.99 USD

Valve Stem Seal Kit - Set Of 16
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:59514198
Part#: 11340033950KT
Ships on Mar 1, 2027
New Item
Sale - Save 11% $ 28.99

This product was last offered at the strikethrough price on
10-28-2026

$ 25.78 USD
Sale - Save 11%
$ 28.99

This product was last offered at the strikethrough price on
10-28-2026

$ 25.78 USD

Valve Stem Seal - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:59514197
Part#: 11340033950
Ships on Mar 1, 2027
New Item
Sale - Save 19% $ 1.99

This product was last offered at the strikethrough price on
10-28-2026

$ 1.61 USD
Sale - Save 19%
$ 1.99

This product was last offered at the strikethrough price on
10-28-2026

$ 1.61 USD
Adjustment Unit - Outlet Cam
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:59294354
Part#: 11367536085
Back Ordered
New Item
$ 167.99 USD
Free Shipping on orders $49 and up