BMW Internal Engine Parts for BMW 3 Series G20 (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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WPC-Treated Race Series Rod Bearings - Complete Set - BMW B58 ...
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Turner Motorsport - Corporate Logo
T#:34147762
Part#: B58-WPC-RB
In Stock
Sale - Save 64% $ 531.99

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

$ 193.43 USD
Free Shipping on orders $49 and up
Sale - Save 64%
$ 531.99

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

$ 193.43 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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Crankshaft Socket - S54 / B46 / B48 / B58
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Schwaben - Corporate Logo
T#:2181320
Part#: LCB226SCH
In Stock
Sale - Save 25% $ 59.99

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

$ 44.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 59.99

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

$ 44.99 USD
Free Shipping on orders $49 and up

Enhance BMW engine maintenance with the Crankshaft Socket - B46 / B48 / B58, an essential tool for effortless engine rotation during timing jobs or valve timing adjustments.

  • Specifically designed for BMW B46, B48, and B58 engines
  • Facilitates easy and precise engine rotation
  • Ideal for timing jobs and valve timing adjustments
  • Ensures proper alignment and maintenance accuracy

Upgrade your BMW maintenance toolkit with the Crankshaft Socket, providing the necessary precision for timing tasks and valve adjustments on B46, B48, and B58 engines.

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ECCENTRIC SHAFT
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Genuine BMW - Corporate Logo
T#:545293
Part#: 11378630463
In Stock
Sale - Save 8% $ 1,158.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,070.99 USD
Limited Qty Sale
Free Shipping
Sale - Save 8%
$ 1,158.99

This product was last offered at the strikethrough price on
06-15-2026

$ 1,070.99 USD
Limited Qty Sale
Free Shipping

Crankshaft Main Bearing Shell 3 (Brown - 55.00mm) - Priced Each ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:31556214
Part#: 11217926105
In Stock
Sale - Save 29% $ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.47 USD
Free Shipping on orders $49 and up
Sale - Save 29%
$ 39.99

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

$ 28.47 USD
Free Shipping on orders $49 and up

Crankshaft Main Bearing Shell 1 (Blue - 55.00mm) - Priced Each ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:31522897
Part#: 11217926103
In Stock
Sale - Save 18% $ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 32.85 USD
Free Shipping on orders $49 and up
Sale - Save 18%
$ 39.99

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

$ 32.85 USD
Free Shipping on orders $49 and up
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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Mechanical Water Pump - B58
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URO - Corporate Logo
T#:50031906
Part#: 11518482251
In Stock
New Item
$ 109.99 USD
Free Shipping on orders $49 and up
Experiencing weak cabin heat at idle, overheating warnings, or unusual noises from beneath the dash? These are common signs that your water pump may need replacement. This cooling system water pump comes complete with a new water pump gasket for a proper seal. Note: One mounting thread includes a self-tapping screw.
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CP Carrillo PRO-H Performance Connecting Rod Set - w/ 3/8" WMC Bolts ...
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CP Carrillo - Corporate Logo
T#:49648346
Part#: SCR13492-6
In Stock at Vendor
New Item
$ 1,845.99 USD
Free Shipping on orders $49 and up
CP Carrillo's PRO-H connecting rods offer exceptional strength and durability for use in high-performance racing engines, capable of withstanding extreme, abusive forces. These rods are made from a proprietary alloy called Carrilloy and utilize an H-beam design for lower weight without compromising strength. This connecting rod set also includes WMC bolts, made from H11 tool steel and rated to 220 KSI, which are good for 15-18 torque cycles.
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CP Carrillo PRO-H Performance Connecting Rod Set - w/ 3/8" CARR Bolts...
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CP Carrillo - Corporate Logo
T#:50521388
Part#: SCR13034-6
In Stock at Vendor
New Item
$ 2,189.99 USD
Free Shipping on orders $49 and up
CP Carrillo's PRO-H connecting rods offer exceptional strength and durability for use in high-performance racing engines, capable of withstanding extreme, abusive forces. These rods are made from a proprietary alloy called Carrilloy and utilize an H-beam design for lower weight without compromising strength. This connecting rod set also includes CARR bolts, a multi-phase bolt rated to 285 KSI, which are good for unlimited torque cycles if not overstretched or overheated.
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Genuine BMW Water Pump - BMW G20-G23, G30-G32, G01-G02
For models with a production date up to 08/2020 without 48V Hybrid System
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Genuine BMW - Corporate Logo
T#:48780726
Part#: 11515B51A32
Ships in 2 Business Days
New Item
9% off MSRP $ 261.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 238.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 261.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 238.99 USD
Free Shipping on orders $49 and up
Genuine BMW Cooling system water pump, includes water pump gasket. Note: One thread contains self-tapping screw.
WPC Treated Rod Bearings Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:13299336
Part#: 11247620969WP2KT
Ships on Aug 5, 2026
Sale - Save 10% $ 839.99

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

$ 755.89 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 839.99

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

$ 755.89 USD
Free Shipping on orders $49 and up
Genuine BMW Scavenge Air Line
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Genuine BMW - Corporate Logo
T#:49508968
Part#: 11155A99A73
Ships in 2 Business Days
New Item
6% off MSRP $ 70.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 66.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 70.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 66.99 USD
Free Shipping on orders $49 and up
Genuine BMW scavenge air line