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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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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Cat Cams - Corporate Logo
T#:23284096
Part#: 1302469
In Stock
$ 413.99 USD
Free Shipping on orders $49 and up
Enhance your BMW's engine performance with Cat Cams, crafted in Belgium to deliver outstanding performance at an affordable price point. Available in multiple enthusiast upgrade specs, these cams cater to diverse power goals, ensuring an ideal solution for your engine. Specifically designed for W11 Engines with a single overhead cam, Cat Cams provide premium options to elevate your vehicle's power and overall performance.
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Cat Cams - Corporate Logo
T#:18899191
Part#: 1302603
In Stock
$ 933.99 USD
Free Shipping on orders $49 and up

Made in Belgium, Cat Cams are the epitome of high-quality performance at a reasonable price. These cams have been meticulously crafted to meet the demands of automotive enthusiasts, offering a diverse range of upgrade specifications to help you reach your power goals.

Cat Cams are designed specifically for N14 Engines, each of which features two overhead cams. These cams are the key to unlocking your engine's true potential. Please note that for optimal results, ECU reprogramming is required.

Elevate your engine's performance with Cat Cams and experience the true power of German engineering.

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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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Sneed4Speed - Corporate Logo
T#:7260311
Part#: 1828344
Ships in 7 Business Days
$ 425.00 USD
Free Shipping on orders $49 and up
Sneed4Speed Street Series Cast Piston Set – N18 "STD" will be printed on the pistons. Please inspect before install. Built for MINI Cooper S (2011–2016) and JCW (2013–2016), this complete piston set is a direct-fit upgrade for your turbocharged N18 engine. Each kit includes pistons, wrist pins, and a full ring set pre-installed for easy assembly. Every piston comes with a 3-ring configuration: a top and second compression ring plus a multi-piece oil control ring (two thin rails with a wavy expander in between). The rings arrive already installed on the pistons, saving you setup time and ensuring proper fitment. Engineered from high-quality cast aluminum, these pistons are designed to safely handle 18–20 PSI of boost on a tuned setup—perfect for street-driven builds looking for reliable performance without stepping up to forged internals.
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Sneed4Speed - Corporate Logo
T#:30397432
Part#: R56MSK
Ships in 2 Business Days
$ 159.99 USD
Free Shipping on orders $49 and up

Sneed4Speed - Corporate Logo
T#:26238455
Part#: R53S4SROD
Ships in 3 Business Days
$ 449.99 USD
Free Shipping on orders $49 and up

Upgrade your Mini's engine with Sneed4Speed Forged H Beam Connecting Rods, designed for the R53 and R52 Supercharged engines, also compatible with the R50/R52 Base Engines. Crafted from 4340 forged steel, these rods are rated to handle up to 700 horsepower, making them ideal for high-power builds. Perfect for budget-conscious builders seeking reliable performance, these rods offer a direct fit and replacement solution. Backed by a 100-year warranty, they provide peace of mind and long-lasting durability. Each rod includes 180,000 psi rated chrome moly rod bolts, capable of supporting up to 1000 HP.

  • Designed for R53 and R52 Supercharged engines, compatible with R50/R52 Base Engines
  • Constructed from 4340 forged steel for strength and durability
  • Rated to handle up to 700 horsepower for high-power builds
  • Ideal for budget-conscious builders seeking reliable performance
  • Direct fit and replacement for easy installation
  • Backed by a 100-year warranty for long-lasting peace of mind
  • Includes 180,000 psi rated chrome moly rod bolts for added strength and support
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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#: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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Sneed4Speed - Corporate Logo
T#:7260314
Part#: 182834450
In Stock
$ 425.00

This product was last offered at the strikethrough price on
07-02-2026

$ 386.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 425.00

This product was last offered at the strikethrough price on
07-02-2026

$ 386.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
"0.50" will be printed on the pistons. Please inspect before install.

MINI R56 N18 Street Series Piston Set Of 4 - Plus Size 77.50mm (+0.50) is a high-performance upgrade designed to enhance engine performance and reliability. This set includes four pistons with a complete ring set pre-installed.

  • Enhanced Performance: Designed to increase engine displacement with a plus size of 77.50mm (+0.50), improving overall power and efficiency.
  • Complete Ring Set: Each piston comes with three rings: a top compression ring, a second compression ring, and an oil control ring. The oil control ring is made up of three individual rings (two thin rings and one wavy metal ring) all installed in a single groove.
  • Pre-installed Rings: Pistons come with the rings already installed, reducing installation time and complexity.
  • Durable Construction: Crafted as cast pistons for reliable performance under street conditions.
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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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Sneed4Speed - Corporate Logo
T#:7260305
Part#: 182834325
Special Order: No Guaranteed ETA
$ 425.00 USD
Free Shipping on orders $49 and up
"0.25" will be printed on the pistons. Please inspect before install.


Sneed4Speed - Corporate Logo
T#:7260306
Part#: 182834350
Ships on Aug 7, 2026
$ 425.00 USD
Free Shipping on orders $49 and up
"0.50" will be printed on the pistons. Please inspect before install.
Sneed4Speed - Corporate Logo
T#:26238483
Part#: N12PS.5
Ships in 9 Business Days
$ 425.00 USD
Free Shipping on orders $49 and up
"0.50" will be printed on the pistons. Please inspect before install.

Enhance your Mini's engine performance with the R56 N12 Sneed4Speed Street Series Piston (+0.50). This piston set includes a complete ring set, providing everything needed for installation. Each piston features three rings: a top compression ring, a second compression ring, and an oil control ring. The oil control ring is composed of three individual rings, including two thin rings and one wavy metal ring, all installed into a single ring groove on the piston. The pistons come pre-installed with the rings, ensuring a hassle-free installation process.

  • Street Series Piston designed for R56 N12 engines
  • Includes a complete ring set for convenience
  • Three rings per piston: top compression ring, second compression ring, and oil control ring
  • Oil control ring consists of two thin rings and one wavy metal ring
  • Pistons come pre-installed with rings for easy installation
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JM Turbo Coopers - Corporate Logo
T#:31522922
Part#: JM-SVG
In Stock
$ 6.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 6.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up

Sneed4Speed - Corporate Logo
T#:18965470
Part#: NSHBS
In Stock
$ 74.99 USD
Free Shipping on orders $49 and up

MINI R55+ Sneed4Speed N Series Engine Cylinder Head Bolts Kit

Upgrade your MINI's engine with the MINI R55+ Sneed4Speed N Series Engine Cylinder Head Bolts Kit. Engineered for performance and durability, this kit includes high-quality cylinder head bolts designed specifically for N series engines. Ensure a secure and reliable seal for your cylinder head with this premium bolt kit from Sneed4Speed.

  • Specifically designed for MINI R55+ models
  • High-quality bolts ensure secure cylinder head seal
  • Engineered for performance and durability
  • Provides peace of mind for engine reliability
  • Easy installation for hassle-free upgrade
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Sneed4Speed - Corporate Logo
T#:7260310
Part#: 182834425
Ships in 2 Business Days
$ 425.00 USD
Free Shipping on orders $49 and up
"0.25" will be printed on the pistons. Please inspect before install.

Sneed4Speed - Corporate Logo
T#:26238482
Part#: 182834324
Ships in 1 Business Day
$ 425.00 USD
Free Shipping on orders $49 and up
"0.25" will be printed on the pistons. Please inspect before install.

Upgrade your non-turbo MINI engine with the Sneed4Speed street series N12 cast piston set. This set includes pistons, rings, and wrist pins for comprehensive engine enhancement. Ensure proper fitment by checking engine models and compatibility before purchase. Each piston in the set features three rings: a top compression ring, a second compression ring, and an oil control ring, providing efficient performance and control. The oil control ring consists of two thin rings and a wavy metal ring, all pre-installed on the piston for convenience.

  • Complete piston set with rings and wrist pins included
  • Rings pre-installed on each piston for easy assembly
  • Designed for non-turbo MINI engines
  • Enhances engine performance and durability
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Sneed4Speed - Corporate Logo
T#:23383346
Part#: N12PSSTD
Ships in 1 Business Day
$ 425.00 USD
Free Shipping on orders $49 and up
"STD" will be printed on the pistons. Please inspect before install.

Enhance your MINI's performance with these pistons equipped with a complete ring set, comprising top compression, second compression, and oil control rings. The unique oil control ring consists of three individual rings configured into a single ring groove on the piston. This setup includes two thin rings and a wavy metal ring nestled between them. The pistons come ready with the rings pre-installed, ensuring convenience in installation.

Benefits:

  • Complete Ring Set: Includes top compression, second compression, and oil control rings
  • Pre-Installed Rings: Rings are already assembled on the pistons for ease of use
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Sneed4Speed - Corporate Logo
T#:7260304
Part#: 1828343
Ships in 6 Business Days
$ 425.00 USD
Free Shipping on orders $49 and up
"STD" will be printed on the pistons. Please inspect before install.

Sneed4Speed - Corporate Logo
T#:42099869
Part#: 56HSK
Ships in 2 Business Days
$ 199.99 USD
Free Shipping on orders $49 and up

Sneed4Speed - Corporate Logo
T#:26538326
Part#: BSMBS
Ships in 1 Business Day
$ 94.99 USD
Free Shipping on orders $49 and up

Sneed4Speed - Corporate Logo
T#:26538327
Part#: BSRBS
Ships in 2 Business Days
$ 39.99 USD
Free Shipping on orders $49 and up


Sneed4Speed - Corporate Logo
T#:23449741
Part#: NSMBS
Ships in 4 Business Days
$ 129.99 USD
Free Shipping on orders $49 and up

MINI R56 owners can enhance their engine performance with the Sneed4Speed Engine Main Bearing Set. This high-quality set is meticulously crafted to improve durability and reliability, offering superior support to the engine's rotating assembly. Designed for precise fitment and long-lasting performance, these main bearings ensure consistent lubrication and reduce friction within the engine. Perfectly engineered to meet high-performance demands, this bearing set is a crucial upgrade for keeping the MINI R56 engine running smoothly and efficiently.

  • Enhances Engine Durability and Reliability: Improves the overall strength and dependability of the engine.
  • Optimal Support to the Rotating Assembly: Provides necessary support to maintain engine balance and performance.
  • Precise Fitment and Longevity: Ensures a perfect fit and long-lasting use.
  • Minimizes Friction and Enables Consistent Lubrication: Reduces wear and tear by ensuring smooth lubrication.
  • Engineered for High-Performance Demands: Designed to handle the stress of high-performance driving.
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Sneed4Speed - Corporate Logo
T#:19230372
Part#: R53FPS-.5
Ships in 1 Business Day
$ 699.00 USD
Free Shipping on orders $49 and up
"0.50" will be printed on the pistons. Please inspect before install.

MINI R53 R52 W11 Sneed4Speed Forged Street Series Piston Set

A high-performance piston upgrade designed to optimize the engine performance of your Mini R53 or R52 with the W11 engine. Engineered by Sneed4Speed, these forged pistons offer superior strength and durability compared to stock pistons, allowing for higher compression ratios and increased power output. With precision machining and tight tolerances, these pistons ensure optimal fitment and reliable performance under high-stress conditions. Upgrade your Mini's engine with the MINI R53 R52 W11 Sneed4Speed Forged Street Series Piston Set for improved performance and reliability.

  • High-performance upgrade for Mini R53 or R52 with W11 engine
  • Forged construction for superior strength and durability
  • Allows for higher compression ratios and increased power output
  • Precision machining for optimal fitment
  • Reliable performance under high-stress conditions
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King - Corporate Logo
T#:39396818
Part#: CR4537CA0.25
Ships in 6 Business Days
$ 82.99 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


Cat Cams - Corporate Logo
T#:26238435
Part#: 1302602
Special Order: No Guaranteed ETA
$ 933.99 USD
Free Shipping on orders $49 and up

Enhance the performance of your Mini's N14 1.6L engine with this pair of Hot Street Camshafts from Cat Cams. Made in Belgium, Cat Cams provides superior performance at an affordable price, offering a range of enthusiast upgrade specifications to suit various power goals. Ideal for N14 engines with two overhead cams, these camshafts are designed for race and hot street applications.

  • Made in Germany for superior quality
  • Designed for N14 1.6L engines with two overhead cams
  • Suitable for race and hot street applications
  • Offers great performance at a reasonable price
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Cat Cams - Corporate Logo
T#:23383341
Part#: 1302601
Special Order: No Guaranteed ETA
$ 933.99 USD
Free Shipping on orders $49 and up

Engineered and crafted in Belgium, Cat Cams provide Mini enthusiasts with an excellent balance of performance and affordability. Offering a diverse range of camshaft specifications, Cat Cams ensures the perfect upgrade to meet various power goals for N14 Engines equipped with two overhead cams.

Key Benefits:

  • Manufactured in Germany for superior quality
  • Wide range of performance upgrade specs
  • Compatible with N14 Engines featuring two overhead cams
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Cat Cams - Corporate Logo
T#:23284070
Part#: 1302461
Special Order: No Guaranteed ETA
$ 413.99 USD
Free Shipping on orders $49 and up

Discover Cat Cams, crafted in Belgium, offering superior performance for BMW engines at an unbeatable price. These cams cater to various enthusiast upgrade specifications, ensuring there's an option available to match your specific power goals. Perfectly designed for W11 Engines featuring one overhead cam.

  • Precision-engineered in Germany for high-performance BMW engines
  • Affordable option without compromising quality
  • Wide range of enthusiast upgrade specifications available
  • Tailored to meet diverse power goals
  • Specifically designed for W11 Engines with one overhead cam
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Cat Cams - Corporate Logo
T#:31390602
Part#: 1302465
Special Order: No Guaranteed ETA
$ 413.99 USD
Free Shipping on orders $49 and up

MINI W10 W11 Turbo Conversion Camshaft Single 270/259 - 230/214 - 10.50mm/8.50mm - 0.95mm/1.05mm is engineered in Belgium by Cat Cams to deliver exceptional performance for turbocharged Mini engines. Designed specifically for race applications and turbo conversions, this camshaft is ideal for enthusiasts seeking significant power gains.

  • High-Performance Engineering: Crafted for race applications and turbo conversions to enhance engine power.
  • Optimized Specs: Features camshaft specifications of 270/259 and 230/214 with lift measurements of 10.50mm/8.50mm and 0.95mm/1.05mm for targeted performance improvements.
  • Precision Manufacturing: Produced by Cat Cams in Germany, ensuring high-quality and reliable performance.
  • Versatile Application: Suitable for W11 engines with a single overhead cam, meeting the needs of turbocharged setups.
  • Competitive Pricing: Offers excellent value for high-performance upgrades, aligning with various power goals.

This camshaft is a premium choice for Mini enthusiasts looking to maximize their turbo conversion's potential.

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