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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King - Corporate Logo
T#:26404878
Part#: TW1046AM
In Stock
$ 28.99 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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Wiseco - Corporate Logo
T#:31158729
Part#: 618M775
In Stock
$ 696.99

This product was last offered at the strikethrough price on
07-20-2026

$ 639.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 696.99

This product was last offered at the strikethrough price on
07-20-2026

$ 639.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up

MINI W11 1.6L Forged Piston & Ring Set (Set of 4) - 77.5mm is perfect for those planning a high-performance build with significant boost or compression, as well as for simple engine rebuilds. These pistons and rings ensure your engine operates at full potential without oil consumption issues.

  • Ideal for high-performance builds and simple rebuilds
  • Enhances engine strength and durability
  • Trusted Wiseco brand ensures reliable performance
  • 8.5:1 compression ratio for improved performance
  • Reduces the risk of oil consumption
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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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Wiseco - Corporate Logo
T#:22756709
Part#: K618M77
In Stock
$ 696.99 USD
Free Shipping on orders $49 and up

When it comes to engine builds, whether you're planning a high-boost monster or a straightforward rebuild, the strength of your build is only as good as its weakest link. In this context, piston rings play a crucial role. They are not to be underestimated, as they can make or break your engine's performance and oil consumption.

Wiseco, a renowned and trusted name in the engine building world, has earned its reputation through consistent product performance. Their piston rings are no exception and are a valuable addition to your engine building puzzle.

Key Features:

  • Wiseco piston rings ensure optimal engine performance.
  • Trusted and respected brand in the engine building industry.
  • Compatible with a variety of engine builds.
  • 8.5:1 compression ratio for enhanced power and efficiency.
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King - Corporate Logo
T#:22723773
Part#: MB5758SI
In Stock
$ 151.99 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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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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ACL - Corporate Logo
T#:31158809
Part#: 5M7788H-.25
Ships on Aug 11, 2026
$ 204.99

This product was last offered at the strikethrough price on
04-09-2026

$ 201.99 USD
Free Shipping on orders $49 and up
$ 201.99 USD
Free Shipping on orders $49 and up

MINI R55 to R61 Main Bearing Set - +.25 Size

The MINI R55 to R61 Main Bearing Set - +.25 Size is engineered for superior performance and reliability. Constructed from high tensile strength steel alloy, these bearings enhance rod bearing strength and retention. The increased crush improves bearing retention by enhancing radial contact pressures and heat dissipation. Bearing eccentricity is optimized to compensate for bore distortion and supports the formation of a hydrodynamic oil film, ensuring smooth engine operation. This set is +.25 size over standard, offering a precise fit for your MINI.

  • Increased Strength: Higher tensile strength steel alloy for improved bearing durability.
  • Enhanced Retention: Greater crush for better bearing retention and heat dissipation.
  • Optimized Eccentricity: Compensates for bore distortion and supports hydrodynamic oil film formation.
  • Precise Fit: +.25 size over standard for a perfect fit in your MINI.
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ACL - Corporate Logo
T#:31423714
Part#: 4B7787H-.25
Ships on Aug 11, 2026
$ 130.99

This product was last offered at the strikethrough price on
04-09-2026

$ 128.99 USD
Free Shipping on orders $49 and up
$ 128.99 USD
Free Shipping on orders $49 and up



King - Corporate Logo
T#:39396819
Part#: CR4537CA0.50
Ships in 6 Business Days
$ 60.99 USD
Free Shipping on orders $49 and up
King - Corporate Logo
T#:39396820
Part#: CR4537CA0.75
Ships in 6 Business Days
$ 82.99 USD
Free Shipping on orders $49 and up

King - Corporate Logo
T#:39396818
Part#: CR4537CA0.25
Ships in 6 Business Days
$ 82.99 USD
Free Shipping on orders $49 and up