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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ARP - Corporate Logo
T#:31556195
Part#: 206-6008
Ships on Aug 14, 2026
$ 74.99 USD
Free Shipping on orders $49 and up
CTA Tools - Corporate Logo
T#:640925
Part#: CTA2450
In Stock
$ 9.27 USD
Free Shipping on orders $49 and up

Plastigage Set is an essential tool for accurately measuring the clearances of engine rod and main bearings without the need for expensive micrometers. This set is ideal for ensuring proper engine assembly by helping you choose the correct size replacement bearing inserts. Designed to cover all automotive engines, the Plastigage Set provides precise measurements to maintain optimal engine performance.

  • Accurate Measurements: Measures clearances of engine rod and main bearings, ensuring proper fitment.
  • Cost-Effective: Eliminates the need for expensive micrometers, offering a budget-friendly solution.
  • Universal Application: Suitable for all automotive engines, making it versatile for various applications.
  • Complete Set: Includes sizes .001" - .003" (green) and .002" - .006" (red) to cover a wide range of measurements.
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Supertech - Corporate Logo
T#:10128410
Part#: P4MIN56N18J77CR1
In Stock
$ 811.99

This product was last offered at the strikethrough price on
06-29-2026

$ 696.99 USD
Limited Qty Sale
Free Shipping
$ 811.99

This product was last offered at the strikethrough price on
06-29-2026

$ 696.99 USD
Limited Qty Sale
Free Shipping

Enhance the performance of your Mini with Supertech Pistons, crafted from extruded high silicone, enhanced 4032 alloy for superior durability and thermal conductivity. Withstanding up to 42psi of boost, these pistons feature a fine structural grain achieved through a two or three step forging process and precise CNC machining. Heat treatments ensure high tensile strength and hardness, while contact reduction grooves and honed pin bores provide a precise fit. Wrist pins made of cold extruded chrome moly steel offer exceptional strength. Plus, a 'phosphate dry lubricant' coating protects rings from 'micro-welding' and enhances lubrication on the skirt/cylinder area. Compression ratios are computed with .030" head gasket and .010" deck, offering optimal performance for your Mini.

  • Crafted from high-quality 4032 alloy for durability
  • Withstands high boost pressures without issues
  • Fine structural grain for enhanced strength
  • Precise CNC machining for accuracy
  • Heat treatments for high tensile strength and hardness
  • Contact reduction grooves and honed pin bores for a precise fit
  • Cold extruded chrome moly steel wrist pins for exceptional strength
  • 'Phosphate dry lubricant' coating protects rings and enhances lubrication
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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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ARP - Corporate Logo
T#:338571
Part#: TMS1733
In Stock
Starting at $ 1.99 USD
Free Shipping on orders $49 and up
Starting at $ 1.99 USD
Free Shipping on orders $49 and up
If you are using a premium fastener, such as the ARP brand rod bolts, head bolts, or main bolts, then you will want this assembly lube. Made to be used to precisely duplicate all ARP fastener preload specifications.
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SNEED4SPEED MINI Cooper Performance Engine - Street 14SCE | MINI R55 ...
Engine if not in stock here or at S4S will take 30-45 days to build, ETA on site is estimate
Sneed4Speed - Corporate Logo
T#:39768332
Part#: 2028311KT
Ships on Oct 16, 2026
$ 6,295.00 USD
$ 6,295.00 USD
Rebuilt performance engines that are great for the street to track level, Does not come with a painted block. You will have to paint it on your own.

Corteco - Corporate Logo
T#:17272955
Part#: 11111485171
Ships in 1 Business Day
$ 10.99 USD
Free Shipping on orders $49 and up

Corteco - Corporate Logo
T#:54388348
Part#: 11347513024
In Stock at Vendor
New Item
$ 23.99 USD
Free Shipping on orders $49 and up
On the street or at the track, your engine’s top end takes a beating. If you are rebuilding a cylinder head due to high mileage, overheating, or a mechanical overrev, you need valves that can handle the heat. This Corteco Exhaust Valve is the exact OEM replacement you need to guarantee factory-level sealing and long-term durability under demanding conditions.
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Sneed4Speed - Corporate Logo
T#:7260310
Part#: 182834425
Ships in 3 Business Days
$ 425.00 USD
Free Shipping on orders $49 and up
"0.25" will be printed on the pistons. Please inspect before install.
CP Carrillo - Corporate Logo
T#:31158739
Part#: CPN-3051
In Stock at Vendor
$ 38.99 USD
Free Shipping on orders $49 and up

MINI R50 to R61 77.50mm Piston Ring Kit CPN-3051 is crafted with advanced technology in the USA, ideal for high-performance applications. Carrillo Piston Rings ensure top-notch quality and reliability for your MINI engine rebuild. This kit is designed for those seeking superior performance and durability.

  • High-Performance Quality: Manufactured using the latest technology in the USA for optimal performance.
  • Perfect Fit: Specifically designed for MINI R50 to R61 with a 77.50mm bore size.
  • Durable Construction: Ensures long-lasting reliability and performance under high-stress conditions.
  • Complete Engine Rebuild: Four sets are required for a full engine, providing comprehensive coverage.
  • Plus Size: Suitable for applications needing slightly larger dimensions for improved performance.
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Sneed4Speed - Corporate Logo
T#:26238482
Part#: 182834324
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.

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#:18866027
Part#: 2028201
Ships in 2 Business Days
$ 2,699.99 USD
$ 2,699.99 USD

Optimize your MINI Cooper S's performance with the meticulously remanufactured Sneed cylinder head, crafted for superior power, reliability, and endurance. Engineered using top-notch materials and advanced techniques, this cylinder head exceeds original manufacturer specifications.

Benefits:

  • Superior performance designed for MINI Cooper S models
  • Unmatched quality, durability, and precise fitment
  • Direct compatibility with MINI Cooper S models 2002-2006 R52 and R53
  • Hassle-free installation without modifications

Frequently Asked Questions:

What is a Sneed remanufactured cylinder head?

A Sneed remanufactured cylinder head is...

Does the Sneed remanufactured cylinder head come with a warranty?

Yes, we offer a warranty on our Sneed remanufactured cylinder heads...

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ARP - Corporate Logo
T#:26404879
Part#: 206-3601
Ships in 2 Business Days
$ 131.99 USD
Free Shipping on orders $49 and up

Enhance the performance of your Mini with ARP's Pro series cylinder head bolts. These bolts are cold-forged for maximum molecular integrity and heat-treated to withstand extreme pressure, rated at 190,000 psi. Featuring 12-point heads, each kit includes hardened parallel washers for precise torque readings and even load distribution.

  • Cold-forged for maximum molecular integrity
  • Heat-treated to withstand extreme pressure
  • Rated at 190,000 psi for exceptional strength
  • 12-point heads for easy installation
  • Includes hardened parallel washers for precise torque readings
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Sneed4Speed - Corporate Logo
T#:7260304
Part#: 1828343
Ships in 7 Business Days
$ 425.00 USD
Free Shipping on orders $49 and up
"STD" will be printed on the pistons. Please inspect before install.


AMC - Corporate Logo
T#:54388484
Part#: 11317587756
Ships on Aug 11, 2026
New Item
$ 216.99 USD
Free Shipping on orders $49 and up
Ready to extract more power and optimize your valve timing? This replacement intake camshaft is engineered for dual-overhead-cam (DOHC) cylinder heads, delivering the precise lift and duration needed to keep your engine breathing efficiently at higher RPMs.
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Sneed4Speed - Corporate Logo
T#:23449741
Part#: NSMBS
Ships in 5 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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CTS - Corporate Logo
T#:34650258
Part#: CTS-CRI-13920T
Ships in 8 Business Days
Sale - Save 10% $ 549.99

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

$ 494.99 USD
Free Shipping
Sale - Save 10%
$ 549.99

This product was last offered at the strikethrough price on
07-10-2026

$ 494.99 USD
Free Shipping

Sneed4Speed - Corporate Logo
T#:26538327
Part#: BSRBS
Ships in 3 Business Days
$ 39.99 USD
Free Shipping on orders $49 and up
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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Sneed4Speed - Corporate Logo
T#:42099869
Part#: 56HSK
Ships in 3 Business Days
$ 199.99 USD
Free Shipping on orders $49 and up

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

Sneed4Speed - Corporate Logo
T#:23383346
Part#: N12PSSTD
Ships in 2 Business Days
$ 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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OES MINI - Corporate Logo
T#:596942
Part#: 11367545862
Ships in 1 Business Day
$ 229.28 USD
Free Shipping
$ 229.28 USD
Free Shipping

Sneed4Speed - Corporate Logo
T#:26538326
Part#: BSMBS
Ships in 2 Business Days
$ 94.99 USD
Free Shipping on orders $49 and up


ARP - Corporate Logo
T#:48367046
Part#: 201-4704
In Stock at Vendor
$ 263.99 USD
Free Shipping on orders $49 and up


Sneed4Speed - Corporate Logo
T#:19230372
Part#: R53FPS-.5
Ships in 2 Business Days
$ 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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CP Carrillo - Corporate Logo
T#:28968875
Part#: SC7512
In Stock at Vendor
$ 885.99 USD
Free Shipping on orders $49 and up

Upgrade your Mini's engine performance with the MINI W10 W11 CP Forged Piston & Ring Set (Set Of 4) - 78mm (Plus Size +1mm). This high-quality piston and ring set is designed to enhance power and durability, ensuring optimal performance on the road or track. With a forged construction and plus-size design, it provides improved strength and reliability for your Mini's engine.

  • Enhances engine performance for Mini vehicles
  • Durable forged construction for long-lasting use
  • Plus-size design (+1mm) for improved strength
  • Includes a set of 4 pistons and rings for convenience

Transform your Mini's engine with the MINI W10 W11 CP Forged Piston & Ring Set, achieving greater power and reliability.

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Corteco - Corporate Logo
T#:54388474
Part#: 11347513023
In Stock at Vendor
New Item
$ 20.53 USD
Free Shipping on orders $49 and up
A weak or worn intake valve causes lost compression, erratic idle, and drops in top-end power. When it's time to refresh your cylinder head for reliability on the street or the circuit, this Corteco intake valve is up to the task.
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Genuine MINI - Corporate Logo
T#:407311
Part#: 11367536085
Ships in 3 Business Days
6% off MSRP $ 674.99

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

$ 633.99 USD
Free Shipping
6% off MSRP
$ 674.99

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

$ 633.99 USD
Free Shipping

Genuine MINI N18 1.6L Adjustment Sprocket Unit - Outlet Cam

Upgrade your Mini's performance with the Genuine MINI N18 1.6L Adjustment Sprocket Unit - Outlet Cam. Engineered with precision, this adjustment sprocket unit ensures precise timing for improved engine efficiency. Its durable construction and easy installation make it an ideal choice for Mini owners looking to enhance their driving experience.

  • Optimizes engine performance
  • Ensures precise timing
  • Durable construction
  • Easy installation
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Supertech - Corporate Logo
T#:26171670
Part#: RET-MC56/T1
In Stock
$ 19.99

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

$ 17.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 19.99

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

$ 17.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up

Titanium Performance Retainers for MINI

Upgrade your MINI's performance with these titanium performance retainers, designed to sit at the top of the spring. Crafted from high-quality titanium metal, these retainers offer enhanced durability and strength compared to traditional options. Compatible with OEM springs or SPR-MC56-BE, these retainers are versatile and suitable for various engine setups. For a complete engine replacement, you'll need 16 of these performance retainers.

Benefits:

  • Enhances MINI's performance
  • Crafted from high-quality titanium metal
  • Offers enhanced durability and strength
  • Versatile compatibility with OEM springs or SPR-MC56-BE
  • Ideal for engine upgrades and replacements
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TRW - Corporate Logo
T#:31125605
Part#: 11347585901
Ships in 1-2 days
$ 15.99

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

$ 14.99 USD
Free Shipping on orders $49 and up
$ 14.99 USD
Free Shipping on orders $49 and up

Genuine MINI - Corporate Logo
T#:521728
Part#: 11248623418
Ships in 3 Business Days
7% off MSRP $ 873.99

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

$ 812.99 USD
Free Shipping
7% off MSRP
$ 873.99

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

$ 812.99 USD
Free Shipping
Genuine MINI - Corporate Logo
T#:407348
Part#: 11377539969
Ships in 3 Business Days
7% off MSRP $ 58.99

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

$ 54.99 USD
Free Shipping
7% off MSRP
$ 58.99

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

$ 54.99 USD
Free Shipping

TRW - Corporate Logo
T#:591750
Part#: 11347533885
Ships in 1-2 days
$ 19.99 USD
Free Shipping on orders $49 and up

Ensure smooth engine operation with the Exhaust Valve for the N12 and N16 1.6L engine in your Mini. This standard replacement valve is essential if you've experienced issues such as timing chain breakage or mechanical failure resulting in bent valves. Keep your Mini running smoothly with this reliable exhaust valve. Benefits include:

  • Compatible with N12 and N16 1.6L engines in Mini vehicles.
  • Standard replacement valve for damaged exhaust valves.
  • Ensures proper engine operation.
  • Addresses issues caused by timing chain breakage or mechanical failure.
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Genuine MINI - Corporate Logo
T#:529650
Part#: 11238638614
Ships in 3 Business Days
9% off MSRP $ 631.99

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

$ 577.99 USD
Free Shipping
9% off MSRP
$ 631.99

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

$ 577.99 USD
Free Shipping
Genuine MINI - Corporate Logo
T#:33889
Part#: 11311487189
Ships in 3 Business Days
$ 27.99 USD
Free Shipping on orders $49 and up
Genuine MINI SCREW PLUG WITH GASKET RING
Fits BMW Engines including:
W10,W11

TRW - Corporate Logo
T#:591751
Part#: 11347587470
Ships in 1-2 days
$ 13.99 USD
Free Shipping on orders $49 and up


Iwis - Corporate Logo
T#:591278
Part#: 13528648731
Ships in 1-2 days
$ 39.99

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

$ 38.99 USD
Free Shipping on orders $49 and up
$ 38.99 USD
Free Shipping on orders $49 and up
TRW - Corporate Logo
T#:591749
Part#: 11347533884
Ships in 1-2 days
$ 17.99 USD
Free Shipping on orders $49 and up
Replacement intake valve for the cylinder head