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BMW Internal Engine Parts

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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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.


King - Corporate Logo
T#:26504954
Part#: MB5803CA0.5
Ships in 3 Business Days
$ 180.99 USD
Free Shipping on orders $49 and up
Introducing King Main Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. Complete Set: King Main Bearings for BMW Engines come as a full set. Silver Bi-Metal Construction: Crafted from King's premium silver bi-metal material offering exceptional strength, durability, and heat resistance. Precision Engineering: Engineered with meticulous attention to detail, our bearings are designed to exacting standards to ensure optimal fitment and compatibility with BMW engines. Enhanced Performance: Experience improved engine stability and smoother operation with King Bearings.
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OEM Elring Cylinder Head Bolt Set - BMW 335d M57 3.0L
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:2691343
Part#: 11127798532
Ships in 2 Business Days
$ 97.99

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

$ 95.99 USD
Free Shipping on orders $49 and up
$ 95.99 USD
Free Shipping on orders $49 and up
Includes a full set of replacement Head Bolts. Cylinder head bolts need to be replaced after removal, once a bolt is torqued down you are unable to reuse it.

Osvat - Corporate Logo
T#:1196100
Part#: 11341708896
Ships in 2 Business Days
$ 35.98 USD
Free Shipping on orders $49 and up
Replace your worn valves
CP-Carrillo Connecting Rod Set - S54
Upgrade Your Connecting Rods in Your High Horsepower S54!
5150 Autosport - Corporate Logo
T#:26171622
Part#: CAR-S54-SCR
Ships in 3 Business Days
Starting at $ 2,149.99 USD
Free Shipping on orders $49 and up
Starting at $ 2,149.99 USD
Free Shipping on orders $49 and up
CP-Carrillo's connecting rods for the BMW S54 engine are specifically engineered to serve as direct replacements for BMW part numbers #11247834437, #11247831924, #11247834310, and 11247831331 in the BMW S54B30, S54B32, S54B33, S54B34, and S54B35 engines, with a length of 139 mm. These Carrillo connecting rods boast a range of impressive features: Crafted from a special chrome-moly based alloy, ensuring strong and durable forged rods. Their lightweight design significantly reduces mass compared to standard rods, optimizing engine performance. These rods have demonstrated exceptional strength and performance in racing environments, vouching for their reliability. Carrillo maintains stringent quality control measures, resulting in tight tolerances and precision balancing for superior performance. Each set is meticulously matched and balanced, ensuring consistent and smooth operation. The connecting rods come equipped with high-quality, non-stretch WMC rod bolts, guaranteeing stability under high-stress conditions. For those seeking even higher performance, there is an option to upgrade to CARR bolts. In conclusion, Carrillo connecting rods stand as the top choice for racers who demand the utmost in performance and reliability from their engines. With a track record of excellence and a suite of advanced features, these rods are the epitome of quality and precision for high-performance applications.
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Mahle Motorsports - Corporate Logo
T#:2928986
Part#: 197843342
Back Ordered
$ 1,429.99 USD
Free Shipping
$ 1,429.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Meistersatz - Corporate Logo
T#:1195780
Part#: 11121721938
Ships in 4 Business Days
$ 19.99 USD
Free Shipping on orders $49 and up
$ 19.99 USD
Free Shipping on orders $49 and up
Set of 14 stretch bolts for installing cylinder head
Genuine BMW - Corporate Logo
T#:6788
Part#: 11341706583
Ships in 2 Business Days
$ 26.99 USD
Free Shipping on orders $49 and up
$ 26.99 USD
Free Shipping on orders $49 and up


Genuine BMW Valve Spring - D=30,2mm
This item fits the following BMW Chassis:
E30,E34

Fits BMW Engines including:
M20

Elring - Corporate Logo
T#:596414
Part#: 11127582454
Ships in 2 Business Days
$ 143.90

This product was last offered at the strikethrough price on
08-26-2026

$ 132.08 USD
Free Shipping
$ 132.08 USD
Free Shipping
One time use torque-to-yield cylinder head bolts. Always replace as a set whenever cylinder head is removed and reinstalled.


5150 Autosport - Corporate Logo
T#:26238416
Part#: 5150-HPRBS-N55
Ships in 4 Business Days
$ 399.99 USD
Free Shipping on orders $49 and up
5150 High Performance Coated Rod Bearing Sets are made for the demands of high performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use, but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.
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JE Piston - Corporate Logo
T#:33713130
Part#: 297171
In Stock at Vendor
$ 1,324.99 USD
Free Shipping on orders $49 and up
JE Pistons Forged Piston Set – BMW S52B32US – 9:1 Compression Ratio Elevate your BMW S52B32US engine with this JE Pistons forged piston kit, designed for durability and performance. 9:1 Compression Ratio: Optimized for turbocharged or supercharged applications, allowing for higher boost without compromising reliability. Forged Aluminum: Lightweight and strong, engineered to withstand high pressures and temperatures. Precision Fit: Tailored for seamless installation in the S52B32US engine. Ideal for enthusiasts looking to boost horsepower and performance, this piston kit ensures exceptional durability and reliability.
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Iwis - Corporate Logo
T#:578660
Part#: 11311716987
In Stock at Vendor
$ 62.99

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

$ 60.99 USD
Free Shipping on orders $49 and up
$ 60.99 USD
Free Shipping on orders $49 and up
The timing chain in any vehicle can begin to stretch and rattle over time. This is a common issue, and though BMW says it is a lifetime part, most enthusiasts decide to change them. If you need only the timing chain instead of a kit, ECS Tuning has your replacement. This is a direct fit replacement for any broken or stretched chain. A great replacement to a damaged chain or one that may have been misplaced out of a timing belt kit.
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Sneed4Speed - Corporate Logo
T#:26538326
Part#: BSMBS
Ships in 2 Business Days
$ 94.99 USD
Free Shipping on orders $49 and up

5150 Autosport - Corporate Logo
T#:26204921
Part#: CAR-CRS-S52-XT
Ships in 4 Business Days
$ 2,099.99 USD
Free Shipping on orders $49 and up
The 5150 AutoSport Pro-Xtreme Connecting Rods, made by CP-Carrillo, are designed to handle extreme horsepower and high RPM applications for BMW M50 Non-VANOS, M52, S50, S52, and M54 engines with 135 mm Rods. Constructed from high-strength, aircraft-grade steel, these connecting rods are engineered to withstand the forces generated by high-powered engines. The Pro-Xtreme design is specifically tailored to handle up to 2000 horsepower, making these rods suitable for high-performance turbo/drag racing or street/strip applications. They are also designed to handle high engine speeds of up to 9500 RPM, which is necessary for achieving maximum power output. Each connecting rod is precisely fabricated to meet the demands of high-performance engines using advanced manufacturing techniques such as computer-aided design (CAD) and finite element analysis (FEA). The Pro-Xtreme Connecting Rods are designed to be durable, reliable, and capable of handling the extreme stresses and forces generated by high-horsepower and high-rpm engines. Please note that these 135 mm connecting rods are designed to fit M50 Non-VANOS, M52, M52TUB28, S50 U.S, S52 U.S, and M54B30 135mm Rod engines. They will NOT fit M50-VANOS engines, as they require 140 mm Rods.
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TRW - Corporate Logo
T#:591667
Part#: 11341461405
Ships in 2 Business Days
$ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up
$ 2.99 USD
Free Shipping on orders $49 and up
Located in the upper spring plate to lock the compressed valve spring in place. These are an essential part for your cylinder head rebuild. Priced each.

Mechanical Water Pump - B58
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:50031906
Part#: 11518482251
In Stock
$ 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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Variable Valve Timing Sprocket
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55749603
Part#: 11367598002
Ships in 2 Business Days
New Item
$ 227.99 USD
Free Shipping on orders $49 and up
The URO Exhaust VVT Sprocket is designed to drop right into your cylinder head and restore crisp, reliable valve timing under all driving conditions.

Corteco - Corporate Logo
T#:54388474
Part#: 11347513023
In Stock
New Item
$ 20.53

This product was last offered at the strikethrough price on
07-23-2026

$ 15.99 USD
Free Shipping on orders $49 and up
$ 15.99 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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King Bearings S85 Performance Rod Bearing Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:56218616
Part#: CR1057GPCKT2
Ships in 5 Business Days
New Item
$ 1,432.99 USD
Free Shipping on orders $49 and up
At the heart of this kit are King's S85 Coated & Graded GPC rod bearings which are engineered to handle high thermal loads, provide superior oil film retention, and offer enhanced protection during cold starts and high RPM runs.
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ARP - Corporate Logo
T#:26404879
Part#: 206-3601
Ships in 3 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#:26538327
Part#: BSRBS
Ships in 3 Business Days
$ 39.99 USD
Free Shipping on orders $49 and up
Genuine BMW - Corporate Logo
T#:6786
Part#: 11341276504
Ships in 4 Business Days
$ 39.99

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

$ 25.99 USD
Free Shipping on orders $49 and up
$ 25.99 USD
Free Shipping on orders $49 and up


Genuine BMW Valve Spring - L=44,8/D=32,1mm

This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M10,M30


JE Piston - Corporate Logo
T#:33612920
Part#: 338095
Back Ordered
$ 1,349.99 USD
Free Shipping on orders $49 and up
The JE Pistons kit for the BMW N54 engine is built for serious performance and reliability. These forged aluminum pistons are engineered to handle the high boost demands of the 3.0L twin-turbo inline-six. Lightweight for improved throttle response, they feature optimized designs for better combustion efficiency. With options for custom compression ratios and coatings, this kit is perfect for high-horsepower builds, ensuring durability whether on the street or the track.
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5150 Autosport - Corporate Logo
T#:22427041
Part#: FER-HPVK-S58+
Ships in 4 Business Days
$ 999.99 USD
Free Shipping on orders $49 and up
Elevate the performance of your S58 engine with Ferrea's valve kit. Renowned for their unmatched reliability and durability in extreme conditions. Crafted from aerospace-grade alloys, including the robust EV8-Z18, these valves undergo a meticulous two-step slow forging process to ensure optimal grain flow and minimize material structure damage. Maintaining molecular integrity is paramount, achieved through a rigorous 48-hour heat treatment and stress-relieving process. The valves boast avionics-quality hard chrome and a specially applied hard tip for enhanced performance. Featuring a standard size of 30.1mm for intake and 28.5mm for exhaust, their triple groove design ensures top-notch efficiency. Note that these valves require additional machining due to their overall larger diameter. ​The kit includes: 12x Intake Valves 12x Exhaust Valves Designed to seamlessly work with factory valve locks, Ferrea's valves are tailored to elevate your BMW S58 engine's performance to new heights.
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Sneed4Speed - Corporate Logo
T#:42099869
Part#: 56HSK
Ships in 4 Business Days
$ 199.99 USD
Free Shipping on orders $49 and up

5150 Autosport - Corporate Logo
T#:26171659
Part#: FPS-M50NV-10:1
Ships in 4 Business Days
$ 1,399.99 USD
Free Shipping on orders $49 and up
The 5150 AutoSport Pro-Xtreme Forged Pistons, made by CP-Carrillo, are designed to handle extreme horsepower and high RPM applications for BMW M50 Non-VANOS engines with 135 mm Rods. Constructed from high-strength, aircraft-grade steel, these pistons are engineered to withstand the forces generated by high-powered engines. The Pro-Xtreme design is specifically tailored to handle up to 2000 horsepower, making these pistons suitable for high-performance turbo/drag racing or street/strip applications. They are also designed to handle high engine speeds of up to 9500 RPM, which is necessary for achieving maximum power output. Each piston is precisely fabricated to meet the demands of high-performance engines using advanced manufacturing techniques such as computer-aided design (CAD) and finite element analysis (FEA). The Pro-Xtreme Pistons are designed to be durable, reliable, and capable of handling the extreme stresses and forces generated by high-horsepower and high-rpm engines. Pro-Xtreme Piston Sets Include: - Pistons - PVD Rings - Pins - Locks - Spec Sheet Please note, that the Pro-Xtreme Piston is engineered to handle up to 2000HP, however, the Standard Wrist Pin can only handle 800-850HP. To exceed 850HP, it is a MUST to use Heavy Duty pins.
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WPC Performance Rod Bearing Replacement Kit - Dry
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:57267800
Part#: 11247838088DKT
Ships on Nov 2, 2026
New Item
$ 994.99

This product was last offered at the strikethrough price on
10-09-2026

$ 993.83 USD
Free Shipping on orders $49 and up
$ 993.83 USD
Free Shipping on orders $49 and up

Mahle Motorsports - Corporate Logo
T#:2928995
Part#: 197859622
Ships in 3 Business Days
$ 1,787.99 USD
Free Shipping
$ 1,787.99 USD
Free Shipping
Forged, 4032. Get the performance and reliability your S85 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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ACL - Corporate Logo
T#:31158809
Part#: 5M7788H-.25
Ships on Nov 3, 2026
$ 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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CP Carrillo - Corporate Logo
T#:27938420
Part#: CPN-3031
Ships on Oct 28, 2026
$ 38.99 USD
Free Shipping on orders $49 and up
TRW - Corporate Logo
T#:19086
Part#: 11341251063
Ships in 2 Business Days
$ 28.66 USD
Free Shipping on orders $49 and up


EXHAUST VALVE 11341251063 Manufactured by TRW

This item fits the following BMWs:

BMW 2002 - 2002, 2002tii
BMW 3 Series - 318i, 320i

--.

5150 Autosport - Corporate Logo
T#:25473980
Part#: CP-PP-HD-N54-6KT
Ships in 4 Business Days
$ 233.99 USD
Free Shipping on orders $49 and up

BMW N54 3.0L CP-Carrillo Heavy Duty Wrist Pins are engineered to enhance the performance and reliability of your BMW's engine. Designed specifically for the N54 3.0L engine, these heavy-duty wrist pins provide superior strength and durability under high-stress conditions. With CP-Carrillo's reputation for high-quality performance parts, these wrist pins ensure your engine operates at its best, delivering exceptional power and longevity.

  • Superior strength for high-stress conditions
  • Enhanced engine performance and reliability
  • Designed specifically for BMW N54 3.0L engines
  • High-quality construction by CP-Carrillo
  • Improves engine longevity and durability
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5150 Autosport - Corporate Logo
T#:26171611
Part#: 5150-HPRBS-M54
Ships in 4 Business Days
$ 251.99 USD
Free Shipping on orders $49 and up
5150 High-Performance Coated Rod Bearing Sets are made for the demands of high-performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.
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Piston Ring - Priced Per Piston | BMW M54 3.0L Engine
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591606
Part#: 11257506252
Ships in 4 Business Days
$ 48.99 USD
Free Shipping on orders $49 and up

Piston Ring - Priced Per Piston | BMW M54 3.0L Engine is a vital component in maintaining proper compression and oil control in BMW M54 3.0L engines. Over time, piston rings experience wear from continuous movement within the cylinder bore, leading to decreased engine efficiency. Worn or damaged rings can result in excessive oil consumption, reduced performance, and visible black or blue smoke from the exhaust. Ideal for engine rebuilds, this high-quality replacement ensures optimal sealing and longevity.

  • Restores proper compression and oil control for improved engine performance
  • Reduces oil consumption and minimizes exhaust smoke
  • Direct-fit replacement for BMW M54 3.0L engine pistons
  • Manufactured from high-strength materials for durability and longevity
  • Essential for engine rebuilds and maintaining peak efficiency
  • Designed to withstand high temperatures and pressures for reliable operation
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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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Intake & Exhaust Hydraulic Lifter - Priced Each
We Price Match - Give Us A Call or Chat!
LUK - Corporate Logo
T#:376002
Part#: 11337516948
Ships in 8 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up

JE Piston - Corporate Logo
T#:33646289
Part#: 345626
In Stock at Vendor
$ 1,349.99 USD
Free Shipping on orders $49 and up
JE Pistons BMW S50B30 Euro Piston 86.00mm Bore 1.245in. CH -4.30 CC - Single Piston JE Pistons for the BMW S50 engine are high-performance, forged pistons designed for durability and optimized performance in racing and high-output applications. The BMW S50 engine, found in models like the E36 M3, benefits from JE Pistons' lightweight, robust design, allowing for improved power output and engine reliability under extreme conditions.
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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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5150 Autosport - Corporate Logo
T#:26271772
Part#: CP-FPS-M20-B275
Ships in 4 Business Days
$ 1,396.99 USD
Free Shipping on orders $49 and up
CP-Carrillo represents the highest quality pistons on the market, engineered for maximum power and durability. Utilizing high-strength, lightweight materials and advanced engineering, this BMW M20B27 piston set features: Lightweight Design: CP-Carrillo pistons are made from high-strength, lightweight materials, such as forged aluminum alloy. Reduced piston weight contributes to improved engine responsiveness and acceleration. Advanced Engineering: CP-Carrillo engineers use state-of-the-art technology and engineering techniques to manufacture pistons that offer optimized combustion, improved fuel efficiency, and increased power output. CP-Carrillo pistons are the best choice for any M20 engine and application, from street bully to all-out track car, and are engineered by one of the most respected names in motorsport to improve performance and reliability. Piston Sets Include: - Pistons - Rings - Pins - Locks - Spec Sheet
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Rein Alusil Piston Ring Repair Kit - E38, E39, E53
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591608
Part#: 11259071606
Ships in 4 Business Days
$ 37.99 USD
Free Shipping on orders $49 and up
$ 37.99 USD
Free Shipping on orders $49 and up
Set of rings for one piston
5150 Autosport - Corporate Logo
T#:22427031
Part#: ARP-MSK-S58
Ships in 4 Business Days
$ 229.99 USD
Free Shipping on orders $49 and up
Elevate your BMW S58 engines with the ARP Main Stud Kit, replacing part numbers 11118604584. These studs prevent main cap walk, ensuring stability and protecting the engine from potential damage. They also safeguard the engine block threads, adding an extra layer of protection. Opting for main studs over factory bolts requires engine builders to mic the bores. Studs may require a line hone for proper fitment and alignment, ensuring round and concentric main bearing bores, preventing premature bearing wear, and ensuring optimal oil clearance.
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