BMW Internal Engine Parts for BMW 3 Series F31 (2014+)

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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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OEM Elring Cylinder Head Bolt Set - N20/26 2.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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Elring - Corporate Logo
T#:2602240
Part#: 11122212157
In Stock
$ 75.99

This product was last offered at the strikethrough price on
05-07-2026

$ 47.99 USD
Free Shipping on orders $49 and up
$ 47.99 USD
Free Shipping on orders $49 and up
If you remove your cylinder head replacement head bolts are a must. These bolts are designed to be torqued down and not reused.
WPC-Treated Performance Rod Bearing Installation Kit - B46 / B48 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:36066270
Part#: B48-WPC-RBKT2
In Stock
Sale - Save 25% $ 551.99

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

$ 413.62 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 551.99

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

$ 413.62 USD
Free Shipping on orders $49 and up

If your engine has higher mileage, don't neglect rod bearing replacement! These bearings are sandwiched between the connecting rod and crankshaft journal and are prone to failure due to overheating, lack of lubrication, or general wear. Replace your rod bearings and prevent a spun bearing.

Starting with ACL’s high-performance bearing shells, our 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.

Kit includes:

Turner Motorsport WPC-Treated Race Series Rod Bearing Shells (8) Genuine BMW Connecting Rod Bolts (8) Assembly Lube (4 oz.)

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WPC-Treated Performance Rod Bearing Service Kit - N20 / N26
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:36066264
Part#: N20-WPC-RBKT2
In Stock
Sale - Save 8% $ 831.99

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

$ 766.05 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 831.99

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

$ 766.05 USD
Free Shipping on orders $49 and up

If your engine has higher mileage, don't neglect rod bearing replacement! These bearings are sandwiched between the connecting rod and crankshaft journal and are prone to failure due to overheating, lack of lubrication, or general wear. Replace your rod bearings and prevent a spun bearing.

Starting with ACL’s high-performance bearing shells, our 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.

Kit includes

Turner Motorsport WPC-Treated Race Series Rod Bearing Shells (8) Hardware for Oil Pan & Oil Sump Oil filter Liqui-Moly Molygen 5W-40 (6L) Drain Plug Turner Motorsport Oil Reminder Sticker Oil pan gasket RedLine assembly lube (4 oz.)

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Elring Cylinder Head Bolt Set - BMW N47 2.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Elring - Corporate Logo
T#:45517828
Part#: 233.370
Special Order: No Guaranteed ETA
$ 58.99 USD
Free Shipping on orders $49 and up
BMW cylinder head bolts are almost always stretch bolts and should never be reused after removal. Reusing old bolts can lead to a weak seal between the cylinder head and engine block, allowing the head to lift and cause potentially catastrophic damage. Replace your old cylinder head bolts with these brand new Elring bolts to ensure your head is properly secured to prevent damage and keep your engine healthy. Replaces BMW # 11128513128
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Elring Cylinder Head Bolt Set - BMW B46/B48 2.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Elring - Corporate Logo
T#:44733255
Part#: 794.470
Special Order: No Guaranteed ETA
$ 83.99 USD
Free Shipping on orders $49 and up
$ 83.99 USD
Free Shipping on orders $49 and up
Cylinder head bolts feature a torque-to-yield design, meaning that they can only be used once. If you have to pull your cylinder head for any reason, be sure to pick up a set of cylinder head bolts to ensure your head is properly attached to the engine block. This kit includes all 10 replacement cylinder head bolts. Replaces BMW p/n 11128644675.
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