BMW Internal Engine Parts for BMW E90 M3 S65 4.0L

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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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WPC-Treated Race Series Rod Bearings - Complete Set - BMW S65 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:34147748
Part#: S65-WPC-RB
In Stock
Sale - Save 15% $ 564.99

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

$ 480.24 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 564.99

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

$ 480.24 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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WPC-Treated Race Series Main Bearings - Complete Set - BMW S65B40 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:34147777
Part#: S65-WPC-MB
Ships on Aug 24, 2026
Sale - Save 20% $ 608.99

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

$ 487.19 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 608.99

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

$ 487.19 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 main bearing service!

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BMW S65 4.0L MAHLE Forged Piston Kit 92mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928987
Part#: 197843622
Back Ordered
$ 1,429.99 USD
Free Shipping
$ 1,429.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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MAHLE PowerPak Piston Kit 92.50mm - S65 - 4.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928989
Part#: 197843642
Ships in 3 Business Days
$ 1,429.99 USD
Free Shipping
$ 1,429.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
Show More Show Less

MAHLE Forged Piston Kit 92mm, 10.1:1 CR - S65 - 4.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928984
Part#: 197843322
Ships on Jul 28, 2026
$ 1,429.99 USD
Free Shipping
$ 1,429.99 USD
Free Shipping
Forged 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
Show More Show Less
MAHLE PowerPak Piston Kit 92mm with Thermal Barrier Coating (TBC) - S...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928988
Part#: 197843622T
Special Order: No Guaranteed ETA
$ 1,673.99 USD
Free Shipping
$ 1,673.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
Show More Show Less

MAHLE Forged Piston Kit 92mm with Thermal Barrier Coating (TBC) - S65...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928983
Part#: 197843322T
Special Order: No Guaranteed ETA
$ 1,673.99 USD
Free Shipping
$ 1,673.99 USD
Free Shipping
Forged 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
Show More Show Less
MAHLE Forged Piston Kit 92.50mm - S65 - 4.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928986
Part#: 197843342
Ships in 3 Business Days
$ 1,429.99 USD
Free Shipping
$ 1,429.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
Show More Show Less

MAHLE Forged Piston Kit 92.50mm with Thermal Barrier Coating (TBC) - ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928985
Part#: 197843342T
Special Order: No Guaranteed ETA
$ 1,673.99 USD
Free Shipping
$ 1,673.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
Show More Show Less

MAHLE PowerPak Piston Kit 92.50mm with Thermal Barrier Coating (TBC) ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle Motorsports - Corporate Logo
T#:2928990
Part#: 197843642T
Special Order: No Guaranteed ETA
$ 1,673.99 USD
Free Shipping
$ 1,673.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
Show More Show Less