BMW Internal Engine Parts for MINI

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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/MINI B46 B4...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:34147765
Part#: B48-WPC-RB
In Stock
$ 475.99

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

$ 354.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 475.99

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

$ 354.99 USD
Limited Qty Sale
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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Performance Thrust Washer Set N12 N14 N16 N18 1.6L Engine
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:26404878
Part#: TW1046AM
In Stock at Vendor
$ 28.99

This product was last offered at the strikethrough price on
06-30-2026

$ 20.99 USD
Free Shipping on orders $49 and up
$ 20.99 USD
Free Shipping on orders $49 and up

Enhance your Mini's engine performance with the Performance Thrust Washer Set designed for N12, N14, N16, and N18 1.6L engines. These thrust washers are engineered to provide optimal support and durability, ensuring smooth and efficient operation of critical engine components. With precision manufacturing and high-quality materials, this set offers improved reliability and longevity for your Mini's engine.

  • Enhances engine performance for Mini vehicles
  • Specifically designed for N12, N14, N16, and N18 1.6L engines
  • Provides optimal support and durability for critical engine components
  • Precision manufacturing ensures a perfect fit
  • High-quality materials for improved reliability and longevity
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Engine Rod Bearing Kit - Standard Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:10974874
Part#: CR4633SM
In Stock at Vendor
$ 108.99

This product was last offered at the strikethrough price on
07-06-2026

$ 71.99 USD
Free Shipping
$ 71.99 USD
Free Shipping

Elevate your engine's performance to new heights with King SI-Series bearings, meticulously crafted to meet OE applications. Whether you're working on aftermarket gasoline or diesel engine rebuilding projects or enhancing the performance of engines equipped with OE crankshafts, these bearings are the perfect choice.

Key Features:

  • Enhanced Crankshaft Finish: The bearings feature an improved crankshaft finish to reduce microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts.
  • Optimized Oil Clearance: Experience reduced wear and extended engine life thanks to improved oil clearance, resulting in smoother engine operation.
  • Noise and Vibration Reduction: These bearings are designed to reduce operating noise and vibration, ensuring a quieter and more comfortable driving experience.
  • Efficient Oil Flow: Benefit from decreased excess oil flow, promoting efficient lubrication and reduced oil consumption.

Choose King SI-Series bearings for your engine and enjoy enhanced performance, increased longevity, and reduced noise and vibration. Upgrade your engine with confidence.

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Engine Main Bearing Kit - Standard Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:22723773
Part#: MB5758SI
In Stock at Vendor
$ 151.99

This product was last offered at the strikethrough price on
07-06-2026

$ 101.99 USD
Free Shipping on orders $49 and up
$ 101.99 USD
Free Shipping on orders $49 and up

King SI-Series bearings offer a comprehensive solution for various engine applications. Whether you have an OE engine or are working on an aftermarket gasoline or diesel engine project, these bearings are designed to meet your needs. They are also an excellent choice for performance engines with OE crankshafts.

Key Features:

  • Enhanced Crankshaft Finish: The King SI-Series bearings feature an improved crankshaft finish, effectively reducing microscopic ferrite peaks commonly found on improperly ground or polished nodular cast iron crankshafts.
  • Improved Oil Clearance: These bearings provide superior oil clearance, resulting in reduced wear and extended engine life. This improved clearance leads to smoother engine operation with less noise and vibration.
  • Efficient Oil Flow: King SI-Series bearings are engineered to manage oil flow effectively, helping to minimize excess oil consumption, and ensuring optimal lubrication of your engine components.

Elevate your engine's performance, reduce wear and tear, and enjoy quieter, smoother operation with King SI-Series bearings. Upgrade your engine components confidently with these high-quality bearings.

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W11 1.6L Engine Rod Bearing Kit - Standard Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:23416504
Part#: CR4538CA
In Stock
$ 85.99 USD
Free Shipping on orders $49 and up
Enhance your Mini's engine performance with King SI-Series bearings, ideal for OE applications, aftermarket gasoline or diesel engine rebuilding, and performance engines featuring OE crankshafts. These bearings boast improved crankshaft finishing, specifically designed to diminish microscopic ferrite peaks on nodular cast iron crankshafts. With improved oil clearance, they reduce wear, extending engine life while minimizing operating noise, vibration, and excess oil flow.
  • Recommended for OE applications and aftermarket engine rebuilding
  • Ideal for gasoline or diesel performance engines with OE crankshafts
  • Improved crankshaft finish reduces microscopic ferrite peaks
  • Enhances oil clearance to reduce wear and increase engine lifespan
  • Reduces operating noise, vibration, and excess oil flow
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Engine Main Bearing Kit Silicone Bi Metal - Standard Size - W11 1.6L ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:23416520
Part#: MB5667SI
In Stock at Vendor
$ 180.99 USD
Free Shipping on orders $49 and up
Upgrade your Mini's engine with King SI-Series main bearings, ideal for OE applications, aftermarket gasoline or diesel engine rebuilding, and performance engines featuring OE crankshafts. These main bearings boast an improved crankshaft finish, effectively reducing microscopic ferrite peaks on nodular cast iron crankshafts. With enhanced oil clearance, they minimize wear, prolonging engine life while decreasing operating noise, vibration, and excess oil flow.
  • Recommended for OE applications and aftermarket engine rebuilding
  • Ideal for gasoline or diesel performance engines with OE crankshafts
  • Reduces microscopic ferrite peaks on crankshafts for improved durability
  • Enhances oil clearance to reduce wear and increase engine lifespan
  • Reduces operating noise, vibration, and excess oil flow
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Engine Rod Bearing Kit - (+0.50) Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:31589319
Part#: CR4538CA0.50
In Stock at Vendor
$ 57.99 USD
Free Shipping on orders $49 and up
Engine Rod Bearing Kit - Standard Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:31522924
Part#: CR4537CA
In Stock at Vendor
$ 55.99 USD
Free Shipping on orders $49 and up

MINI R50 to R53 Engine Main Bearing Kit Silicone Bi Metal - (+0.25) S...
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King - Corporate Logo
T#:31423708
Part#: MB5667SI0.25
In Stock at Vendor
$ 134.99 USD
Free Shipping on orders $49 and up

Engine Rod Bearing Kit - (+0.25) Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:31589432
Part#: CR4538CA0.25
In Stock at Vendor
$ 54.99 USD
Free Shipping on orders $49 and up
King Engine Bearings Mini Cooper B38A15M0 (Size +0.50mm) Connecting R...
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King - Corporate Logo
T#:30596490
Part#: CR357SV0.5
Ships in 7 Business Days
$ 136.00 USD
Free Shipping on orders $49 and up
Engine Rod Bearing Kit - +0.75 Size
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King - Corporate Logo
T#:39396820
Part#: CR4537CA0.75
Ships in 7 Business Days
$ 82.99 USD
Free Shipping on orders $49 and up


Engine Rod Bearing Kit - +0.25 Size
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King - Corporate Logo
T#:39396818
Part#: CR4537CA0.25
Ships in 7 Business Days
$ 82.99 USD
Free Shipping on orders $49 and up
Engine Rod Bearing Kit - +0.50 Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:39396819
Part#: CR4537CA0.50
Ships in 7 Business Days
$ 60.99 USD
Free Shipping on orders $49 and up
Engine Rod Race Bearing Kit - Standard Size
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King - Corporate Logo
T#:31589431
Part#: CR4600XP
Ships on Jul 24, 2026
$ 210.00 USD
Free Shipping on orders $49 and up

Connecting Rod Bearing Set - +0.25 Size - Set Of 4 Cylinders ...
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King - Corporate Logo
T#:22690765
Part#: CR4640SV0.25
Back Ordered
$ 75.99 USD
Free Shipping on orders $49 and up

Connecting Rod Bearing Set - Standard Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:22690763
Part#: CR4640SV
Back Ordered
$ 75.99 USD
Free Shipping on orders $49 and up