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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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Supertech - Corporate Logo
T#:21604312
Part#: KPR-5.0-7S
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$ 3.99 USD
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Two required per valve, necessary use with certain supertech valves 5.0mm single groove
JE Piston - Corporate Logo
T#:33746527
Part#: 297183
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$ 1,324.99 USD
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Here’s another version of the description for the JE Pistons 12.5:1 Compression Ratio Kit for BMW S50B30US, following a more technical and product-focused tone:


JE Pistons 12.5:1 Compression Kit – Set of 6 Pistons for BMW S50B30US

Maximize Your BMW’s Power with High-Compression JE Pistons

The JE Pistons 12.5:1 kit is engineered to give your BMW S50B30US engine a significant performance upgrade. This set of six precision-forged pistons is designed for enthusiasts looking for more power through increased compression, whether on the street or the track.

  • Compression Ratio: 12.5:1 for enhanced combustion efficiency and power output.
  • Fitment: Specifically designed for the BMW S50B30US engine found in the U.S. market E36 M3.
  • High-Strength Construction: Forged from JE's proprietary 2618 aluminum alloy, these pistons are built to withstand extreme conditions without sacrificing strength or durability.
  • Bore Size: Available in standard or oversized bore diameters to match your engine's specifications, ensuring optimal fit and performance.
  • Lightweight Design: Reduces internal engine weight, improving rev response and high-RPM performance.
  • Thermal Protection: Each piston is equipped with advanced coatings to protect against heat and friction, extending the lifespan of your engine under high-performance conditions.
  • Pin-Fit and Balanced: These pistons come pre-balanced and pin-fitted, making installation easy and ensuring reliable operation.

Ideal for High-Performance Builds

Designed for those who push their BMW S50B30US to the limit, this 12.5:1 compression piston kit delivers improved power, torque, and reliability, especially in naturally aspirated builds or when paired with supporting modifications like higher-lift cams or race-tuned ECUs.

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JE Piston - Corporate Logo
T#:33846569
Part#: 312385
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JE Pistons 13:1 Compression Piston Kit - BMW S14B32 Engine

Looking to push your BMW S14B32 engine to its peak performance? The JE Pistons 13:1 Compression Kit is engineered for high-revving, naturally aspirated engines, delivering the kind of power and precision that serious tuners demand. Built with JE Pistons' advanced forging technology, this kit ensures maximum strength without added weight—giving you both performance and reliability under extreme conditions.

Features:

  • 13:1 Compression Ratio: This high-compression setup optimizes cylinder pressure, resulting in more power, better torque, and improved throttle response.
  • Forged for Strength: Made from 2618 aluminum, these pistons are forged to provide superior strength and thermal efficiency, ideal for engines that operate at high RPMs or under significant load.
  • Precision Engineered: Designed specifically for the BMW S14B32 engine, ensuring a seamless fit and optimized combustion chamber dynamics for a perfect blend of power and reliability.
  • Reduced Friction: Low-friction skirt coating to reduce wear and maximize engine life, even under the harshest racing conditions.
  • Complete Kit: Includes four pistons, premium rings, wrist pins, and locks for a full installation package.
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JE Piston - Corporate Logo
T#:33713113
Part#: 289078
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$ 1,324.99 USD
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JE Pistons Set of 6 – 86.5mm Bore (-5.2cc Dome) – BMW S50B32 Euro Kit Upgrade your BMW S50B32 Euro engine with this set of 6 JE forged aluminum pistons. Designed for high performance and durability, these pistons feature: 86.5mm Bore: Stock size for optimal fit and performance. -5.2cc Dome Volume: Tailored for ideal compression and combustion efficiency. High-Compression: Enhances power and torque for naturally aspirated setups. Forged Aluminum: Lightweight, strong, and built to withstand high-stress environments. Perfect for race or street applications, these pistons are engineered for seamless installation and maximum performance.
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JE Piston - Corporate Logo
T#:33746529
Part#: 297184
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$ 1,324.99 USD
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Here’s another version of the description for the JE Pistons 12.5:1 Compression Ratio Kit for BMW S50B30US, following a more technical and product-focused tone:


JE Pistons 12.5:1 Compression Kit – Set of 6 Pistons for BMW S50B30US

Maximize Your BMW’s Power with High-Compression JE Pistons

The JE Pistons 12.5:1 kit is engineered to give your BMW S50B30US engine a significant performance upgrade. This set of six precision-forged pistons is designed for enthusiasts looking for more power through increased compression, whether on the street or the track.

  • Compression Ratio: 12.5:1 for enhanced combustion efficiency and power output.
  • Fitment: Specifically designed for the BMW S50B30US engine found in the U.S. market E36 M3.
  • High-Strength Construction: Forged from JE's proprietary 2618 aluminum alloy, these pistons are built to withstand extreme conditions without sacrificing strength or durability.
  • Bore Size: Available in standard or oversized bore diameters to match your engine's specifications, ensuring optimal fit and performance.
  • Lightweight Design: Reduces internal engine weight, improving rev response and high-RPM performance.
  • Thermal Protection: Each piston is equipped with advanced coatings to protect against heat and friction, extending the lifespan of your engine under high-performance conditions.
  • Pin-Fit and Balanced: These pistons come pre-balanced and pin-fitted, making installation easy and ensuring reliable operation.

Ideal for High-Performance Builds

Designed for those who push their BMW S50B30US to the limit, this 12.5:1 compression piston kit delivers improved power, torque, and reliability, especially in naturally aspirated builds or when paired with supporting modifications like higher-lift cams or race-tuned ECUs.

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JE Piston - Corporate Logo
T#:20979714
Part#: 297182
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$ 1,324.99 USD
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The JE Pistons 11.5:1 compression ratio kit for the BMW S50B30US engine (found in the U.S. version of the E36 M3) is designed to improve performance by offering higher compression, increasing power output. Key features likely include:

  1. Forged construction: These pistons are crafted from high-strength forged aluminum, providing durability and heat resistance under high performance or racing conditions.
  2. Specific bore size: Typically, these kits are sized to a specific bore diameter, such as 86.25mm, which matches the engine's specifications.
  3. Lightweight design: Reduced piston weight for faster revs and improved engine response.
  4. Coated for protection: Many JE pistons are coated to reduce wear, friction, and heat-related damage.
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JE Piston - Corporate Logo
T#:33612923
Part#: 345624
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$ 1,349.99 USD
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The JE Pistons for the BMW S50 engine are designed for enthusiasts aiming for enhanced performance and long-term reliability. Constructed from high-strength forged aluminum, these pistons are engineered to withstand the intense demands of the high-revving 3.0L inline-six. The lightweight design reduces rotational mass, improving both throttle response and overall engine efficiency. With precision-crafted dome profiles, these pistons optimize combustion efficiency, delivering more power and performance. Available with customizable compression ratios and advanced coatings, JE Pistons are perfect for high-horsepower builds, offering durability and top-tier performance on both the street and track.
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CP Carrillo - Corporate Logo
T#:31324219
Part#: SC7511
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$ 885.99 USD
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MINI W10 W11 CP Forged Piston & Ring Set (Set Of 4) - 77.5mm (Plus Size +0.5mm) by CP Carrillo is designed to elevate the performance of your MINI engine to new heights. Renowned for their high-quality forged pistons and rods, CP Carrillo provides these pistons for custom-built engines seeking high power outputs.

  • Available in standard or oversized sizes: Offers flexibility for different engine builds.
  • Deep valve relief depth: Accommodates high-lift camshafts.
  • Made for +1mm valve sizes: Suitable for performance enhancements.
  • Custom skirt cam and barrel design: Enhances performance and reliability.
  • Accumulator grooves: Improve oil distribution.
  • High-strength aluminum forgings: Ensures durability and longevity.
  • Compatible with oversized valves and higher lift cams: Versatile for high-performance applications.
  • Fully CNC-machined and balanced to +/-1 gram: Precision engineering for optimal performance.
  • Wrist pins included: Adds value with no additional cost.
  • Double pin oilers and force-fed oil ring: Ensures effective lubrication.
  • Pick lock grooves for easy lock removal: Facilitates maintenance.
  • Pin fitting included: Ready for installation.
  • Compression ratio of 8.3:1: Provides a balanced power output.
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JE Piston - Corporate Logo
T#:33713101
Part#: 345631
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$ 1,349.99 USD
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The JE Pistons BMW S50B32 Euro Kit is designed for performance enhancements of the BMW S50B32 engine, which was used in the Euro-spec E36 M3. Here are the details for the specific kit you're asking about: Bore Size: 87.0mm This refers to the diameter of each piston, slightly larger than the stock bore (which is typically 86.4mm). The increase in bore size slightly raises displacement and allows for better airflow and combustion, improving power potential. Dome Volume: -10.10cc The negative dome volume indicates that the piston has a dish shape, rather than a positive dome. This affects the engine's compression ratio and helps with fine-tuning cylinder pressures. A dished piston like this allows for higher performance at high RPM, while maintaining stability. Compression Ratio: 11.50:1 This high compression ratio is ideal for naturally aspirated performance applications, offering more power output by increasing the efficiency of the combustion process. A higher compression ratio helps the engine generate more horsepower and torque from the same displacement. Material: Forged aluminum JE Pistons are known for their high-quality forged aluminum construction. This offers better strength and durability under high stress and heat, making them suitable for high-performance and racing applications. Application: BMW S50B32 (Euro-Spec E36 M3) This kit is specific to the Euro version of the S50 engine, which differs slightly from the US-spec version in terms of displacement, power output, and other engine characteristics.
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JE Piston - Corporate Logo
T#:33846579
Part#: 345633S
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$ 299.99 USD
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B

JE Pistons BMW S50B32 Euro Kit - 87mm Bore (5.2cc Dome)

Take your BMW S50B32 engine to the next level with the JE Pistons Euro Kit, meticulously engineered for performance enthusiasts who demand exceptional power and efficiency. With an 87mm bore and a thoughtfully designed 5.2cc dome, this piston kit is designed to enhance combustion characteristics, ensuring maximum power delivery for both street and track applications. Crafted from high-quality materials, these pistons offer the durability and reliability needed for serious performance builds.

Key Features:

  • Precision 87mm Bore: Tailored specifically for the S50B32 engine, this bore size optimizes airflow and combustion efficiency, translating to significant horsepower and torque gains.
  • 5.2cc Dome Profile: The dome design promotes efficient combustion, enhancing fuel burn while reducing the risk of detonation under high-stress conditions, ideal for naturally aspirated setups.
  • Forged Aluminum Construction: Manufactured from premium forged aluminum, these pistons provide a perfect balance of strength and lightweight performance, making them suitable for high-revving applications.
  • Engineered for Performance: Every aspect of these pistons is designed to ensure reliability and efficiency, reducing friction and wear for improved longevity.
  • Complete Installation Package: The kit includes everything necessary for a seamless installation, making it suitable for professional mechanics and DIY enthusiasts alike.

Applications:

  • Designed for BMW S50B32 Engines, perfect for high-performance builds, competitive racing, or enhanced street driving.
  • Ideal for naturally aspirated engine setups aiming for maximum output and responsiveness.

Technical Specifications:

  • Bore Size: 87mm, optimized for the S50B32 platform.
  • Dome Volume: 5.2cc, engineered to enhance combustion efficiency and power output.
  • Material: High-strength forged aluminum for outstanding performance and durability.
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JE Piston - Corporate Logo
T#:600191
Part#: 361346
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$ 1,349.99 USD
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$ 1,349.99 USD
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Building a high powered engine for road race, drag race, or full out competition racing? JE Pistons for your S50B30 US engine offer the ultimate in strength and reliability in a forged piston. Features: Ultra-high performance forged piston set Includes JE Pro Seal piston rings Includes wrist pins and pin locks No dish deburring or preparation needed Individually prepared inspection report of dimensional conformity Each piston individually serialized for complete traceability 23-point post-production inspection conducted by certified personnel Tighter tolerances on 14 critical areas of the piston All critical surfaces machined in dedicated Critical Manufacturing Cell Specifications: Bore (in): 3.396 Bore (mm): 86.25 Top Compression Ring Thickness: 0.0400 Second Compression Ring Thickness: 0.0480 Oil Ring Thickness: 0.111 Forging Type: FSR Volume (cc): -24.00 Series: JE Pistons Piston Head Type: Inv Dome/Dish Pin Diameter (IN): 0.866 Compression Height: 1.291 Make: BMW Wrist Pin Style - floating or press fit: Floating Wall Type: CHAMFERED Wall Thickness (IN): 0.180 Ringset Part Number: JG1001-3396 Ring Brand: ProSeal Ringset Included: Yes Retainer Thickness: 0.063 Retainer Lock Style: Wire Lock Retainer Lock Part Number: 866-063-MW Retainer Diameter (IN): 0.866 Replacement Single Piston: 361346S Piston Pin Inside Diameter: 0.506 Piston Pin Material: 5115 LOW CARBON STEEL, CASE HARDENED Piston Material: 2618 Piston Pin Length (IN): 2.250 Piston Avg Wt: 299 Pin Offset: Yes Pin Brand: JE Pistons Pin Part Number: 866-2250-18-51C Pin Included: Yes Pin Diameter (mm): 22.00 Oil Rail Support Included: No Deck Clearance: 0.030 Brand: JE Pistons
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JE Piston - Corporate Logo
T#:33846571
Part#: 321358
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$ 899.99 USD
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E Pistons 8.5:1 Piston Kit - BMW S14B23 Engine (Set of 4)

Unleash the full potential of your BMW S14B23 engine with the JE Pistons 8.5:1 Compression Kit, engineered for maximum strength and reliability in forced induction builds. Perfect for turbocharged or supercharged applications, these pistons are designed to handle high boost levels, ensuring your engine can withstand extreme pressures while delivering smooth, consistent performance.

Key Benefits:

  • Optimized Compression (8.5:1): Lower compression ratio designed specifically for turbo or supercharged setups, helping manage cylinder pressures for greater tuning flexibility and boost potential.
  • Forged for Toughness: Crafted from 2618 aluminum alloy, these pistons are forged to withstand extreme stress and temperature, making them ideal for high-boost, high-revving engines.
  • Thermal Efficiency & Durability: Enhanced heat dissipation design reduces the risk of detonation, allowing your engine to run cooler under heavy load.
  • Friction-Reducing Skirt Coating: Helps to reduce wear, improving the longevity of both the pistons and the engine, even under intense driving conditions.
  • Complete Installation Kit: Comes with four pistons, rings, wrist pins, and locks, providing everything you need for a smooth installation process.

Why Choose JE Pistons?

JE Pistons are a trusted name in motorsport for delivering unbeatable strength and performance. This 8.5:1 piston kit allows you to push your BMW S14B23 engine to new limits with confidence, whether it’s for track use, drag racing, or a high-performance street build.

Applications:

  • Fits BMW S14B23 Engines (E30 M3, high-performance builds)
  • Ideal for turbocharged or supercharged configurations.

Technical Specifications:

  • Compression Ratio: 8.5:1 for optimal forced induction performance.
  • Material: Forged 2618 aluminum alloy for unmatched strength.
  • Bore Sizes: Customizable options for overbore requirements.
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JE Piston - Corporate Logo
T#:33612921
Part#: 345622
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$ 1,349.99 USD
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The JE Pistons for the BMW S50 engine are designed for enthusiasts aiming for enhanced performance and long-term reliability. Constructed from high-strength forged aluminum, these pistons are engineered to withstand the intense demands of the high-revving 3.0L inline-six. The lightweight design reduces rotational mass, improving both throttle response and overall engine efficiency. With precision-crafted dome profiles, these pistons optimize combustion efficiency, delivering more power and performance. Available with customizable compression ratios and advanced coatings, JE Pistons are perfect for high-horsepower builds, offering durability and top-tier performance on both the street and track.
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JE Piston - Corporate Logo
T#:33646284
Part#: 345625
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$ 1,349.99 USD
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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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JE Piston - Corporate Logo
T#:33846576
Part#: 321364
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$ 899.99 USD
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JE Pistons BMW S14B23 13:1 Compression Piston Kit - 3.7086in Bore (Set of 4)

Elevate your BMW S14B23 engine’s performance with the JE Pistons 13:1 Compression Piston Kit, featuring a 3.7086-inch bore size. Designed for high-compression, naturally aspirated builds, this piston kit delivers enhanced power, faster throttle response, and exceptional reliability, making it the perfect choice for serious racers and high-performance enthusiasts alike. With JE’s world-class forged piston technology, you’ll get unmatched strength and durability to handle the most demanding environments.

Key Features:

  • 13:1 High-Compression Ratio: Optimized for naturally aspirated engines, the 13:1 compression ratio maximizes cylinder pressure for increased horsepower, torque, and efficiency. Perfect for high-RPM applications.
  • 3.7086in Bore Size: Specifically designed for the BMW S14B23 engine, this precise bore size ensures optimal fitment and superior combustion, providing the ideal foundation for high-performance builds.
  • Forged 2618 Aluminum Construction: Built from JE’s 2618 forged aluminum alloy, these pistons offer exceptional strength, heat resistance, and durability, making them capable of withstanding extreme pressures and temperatures.
  • Advanced Combustion Chamber Design: Piston crowns are engineered to improve combustion efficiency, promoting smoother, more controlled combustion for better performance and reduced detonation risks.
  • Low-Friction Skirt Coating: A friction-reducing coating on the piston skirts minimizes wear and tear, ensuring smooth operation and prolonging the life of both the pistons and the engine.
  • Complete Installation Kit: This set comes with four pistons, rings, wrist pins, and locks, offering everything you need for a full upgrade to your S14B23 engine.

Built for Power & Precision:

Engineered for peak performance, JE Pistons are known for their precision and durability. This 13:1 compression kit is tailored for those who want to push their BMW S14B23 engine to its limits, whether on the track or on the street. The 3.7086in bore ensures exact fitment and optimal combustion dynamics, maximizing both power output and reliability.

Application:

  • Fits BMW S14B23 Engines – Perfect for high-compression naturally aspirated builds, race applications, or high-performance street cars.
  • Ideal for track-focused and high-RPM setups.

Technical Specs:

  • Compression Ratio: 13:1 for naturally aspirated engines.
  • Bore Size: 3.7086 inches, designed for a precise fit.
  • Material: Forged from 2618 aluminum alloy for superior strength and heat tolerance.
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JE Piston - Corporate Logo
T#:33713106
Part#: 361348
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$ 1,349.99 USD
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Upgrade your BMW S50B32 Euro-spec engine with JE Pistons, crafted for ultimate durability and performance. This set of 6 forged aluminum pistons is designed to handle the extreme demands of high-revving engines, making it ideal for track or street applications. Bore Size: 86.5mm Maintains the stock bore size for the BMW S50B32 engine, ensuring optimal cylinder wall thickness and structural integrity while offering enhanced performance. Dome Volume: -5.2cc The negative dome volume helps fine-tune the compression ratio, ensuring ideal combustion chamber dynamics for improved power delivery and engine efficiency, especially in naturally aspirated setups. High-Compression Design This kit supports a high-compression ratio, perfect for increasing horsepower and torque in performance applications. It's built for engines that require extra power without compromising reliability. Forged Aluminum Construction JE Pistons are made from aerospace-grade forged aluminum, known for its high strength-to-weight ratio. This ensures superior durability, reduced reciprocating mass, and improved throttle response under high-stress conditions.
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JE Piston - Corporate Logo
T#:383222
Part#: JE297173
In Stock at Vendor
$ 1,324.99 USD
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$ 1,324.99 USD
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Elevate the performance of your BMW E36 M3 equipped with an S52 3.2L engine with JE Pistons 87mm Pistons (+.60mm). These pistons are meticulously crafted to deliver optimal engine performance and durability, ensuring a smooth and powerful ride. Perfect for enthusiasts looking to boost their BMW's power and efficiency.
  • Increased engine performance
  • Enhanced durability for prolonged engine life
  • Precision-engineered for perfect fitment
  • Compatible with BMW E36 M3 S52 3.2L engines
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JE Piston - Corporate Logo
T#:33846570
Part#: 312386
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$ 899.99 USD
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Here’s an alternative description for the JE Pistons BMW S14B32 13:1 Piston Kit (Set of 4), with a different tone and emphasis:


JE Pistons 13:1 Compression Piston Kit - BMW S14B32 Engine

Looking to push your BMW S14B32 engine to its peak performance? The JE Pistons 13:1 Compression Kit is engineered for high-revving, naturally aspirated engines, delivering the kind of power and precision that serious tuners demand. Built with JE Pistons' advanced forging technology, this kit ensures maximum strength without added weight—giving you both performance and reliability under extreme conditions.

Features:

  • 13:1 Compression Ratio: This high-compression setup optimizes cylinder pressure, resulting in more power, better torque, and improved throttle response.
  • Forged for Strength: Made from 2618 aluminum, these pistons are forged to provide superior strength and thermal efficiency, ideal for engines that operate at high RPMs or under significant load.
  • Precision Engineered: Designed specifically for the BMW S14B32 engine, ensuring a seamless fit and optimized combustion chamber dynamics for a perfect blend of power and reliability.
  • Reduced Friction: Low-friction skirt coating to reduce wear and maximize engine life, even under the harshest racing conditions.
  • Complete Kit: Includes four pistons, premium rings, wrist pins, and locks for a full installation package.

Why Choose JE Pistons?

JE Pistons are trusted in the racing world for their performance and reliability. The unique design of this 13:1 compression kit pushes the boundaries of power without sacrificing durability, making it a top choice for those serious about upgrading their BMW’s engine.

Application:

  • Fits BMW S14B32 Engines – E30 M3, race-prepped builds, and high-performance street applications.
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JE Piston - Corporate Logo
T#:33713103
Part#: 345632
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$ 1,349.99 USD
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Upgrade your BMW S50B32 Euro-spec engine with JE Pistons, crafted for ultimate durability and performance. This set of 6 forged aluminum pistons is designed to handle the extreme demands of high-revving engines, making it ideal for track or street applications. Bore Size: 86.5mm Maintains the stock bore size for the BMW S50B32 engine, ensuring optimal cylinder wall thickness and structural integrity while offering enhanced performance. Dome Volume: -5.2cc The negative dome volume helps fine-tune the compression ratio, ensuring ideal combustion chamber dynamics for improved power delivery and engine efficiency, especially in naturally aspirated setups. High-Compression Design This kit supports a high-compression ratio, perfect for increasing horsepower and torque in performance applications. It's built for engines that require extra power without compromising reliability. Forged Aluminum Construction JE Pistons are made from aerospace-grade forged aluminum, known for its high strength-to-weight ratio. This ensures superior durability, reduced reciprocating mass, and improved throttle response under high-stress conditions. Designed for BMW S50B32 Euro Engine Specifically engineered for the European-spec BMW S50B32 engine, these pistons fit perfectly into the OE architecture, providing seamless installation and compatibility with both stock and modified engine builds.
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JE Piston - Corporate Logo
T#:33713116
Part#: 289190
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$ 1,324.99 USD
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Upgrade your BMW S50B32 Euro-spec engine with JE Pistons, crafted for ultimate durability and performance. This set of 6 forged aluminum pistons is designed to handle the extreme demands of high-revving engines, making it ideal for track or street applications. Bore Size: 86.5mm Maintains the stock bore size for the BMW S50B32 engine, ensuring optimal cylinder wall thickness and structural integrity while offering enhanced performance. Dome Volume: -5.2cc The negative dome volume helps fine-tune the compression ratio, ensuring ideal combustion chamber dynamics for improved power delivery and engine efficiency, especially in naturally aspirated setups. High-Compression Design This kit supports a high-compression ratio, perfect for increasing horsepower and torque in performance applications. It's built for engines that require extra power without compromising reliability. Forged Aluminum Construction JE Pistons are made from aerospace-grade forged aluminum, known for its high strength-to-weight ratio. This ensures superior durability, reduced reciprocating mass, and improved throttle response under high-stress conditions. Designed for BMW S50B32 Euro Engine Specifically engineered for the European-spec BMW S50B32 engine, these pistons fit perfectly into the OE architecture, providing seamless installation and compatibility with both stock and modified engine builds.
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JE Piston - Corporate Logo
T#:5122283
Part#: 297119
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$ 1,324.99 USD
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JE Pistons are specifically engineered for extreme applications up to, and including, professional competition. In this environment, higher compression ratios, extreme boost levels and heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy found in every JE Piston. *Application Specific Forgings for an Optimized, Uniform Crown Thickness *Contact Reduction Groove to Minimize Frictional Drag *Accumulator Groove for Increased Top Ring Stability and Sealing *CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength *Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included *JE ProSeal Piston Rings are included with your JE Pistons
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JE Piston - Corporate Logo
T#:33713115
Part#: 289079
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$ 1,324.99 USD
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JE Pistons Set of 6 – BMW S50B32 Euro Kit (87.00mm Bore) Upgrade your BMW S50B32 Euro-spec engine with this set of 6 JE Pistons, engineered for high performance and durability. 87.00mm Bore: Larger bore size boosts displacement for increased power output. Forged Aluminum: Lightweight and strong, designed to handle extreme conditions and reduce wear. Precision Fit: Optimized for naturally aspirated builds, delivering improved combustion and efficiency. Ideal for enthusiasts seeking more horsepower and reliability, this piston kit ensures your engine performs at its peak, whether on the street or track.
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JE Piston - Corporate Logo
T#:33646301
Part#: 345627
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$ 1,349.99 USD
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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. Here’s a general description of JE Pistons for the BMW S50: Forged Construction: JE Pistons are made from 2618 forged aluminum alloy, which provides superior strength and durability compared to cast pistons, making them ideal for high-performance and high-boost applications. Customizable Options: JE Pistons often offer customization in terms of bore size and compression ratios to fit specific engine builds, whether for naturally aspirated or forced induction setups. This flexibility allows tuners and builders to optimize the engine for power, reliability, and efficiency. Lightweight Design: The pistons are designed to reduce reciprocating mass, which enhances engine response and reduces strain on internal components, contributing to higher RPM capability and increased efficiency. Coating Options: Many JE Pistons feature coatings for improved performance and longevity. These include thermal coatings that reduce heat transfer and friction-reducing coatings that protect against wear. CNC Machined: Precision CNC machining ensures tight tolerances, delivering consistent performance across all pistons, which is crucial for high-stress, high-revving engines like the S50. Increased Power Potential: JE Pistons are engineered for engines making significant power increases over stock, supporting high horsepower builds in both street and track applications.
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JE Piston - Corporate Logo
T#:33713148
Part#: 297175
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$ 1,324.99 USD
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The JE Pistons BMW S52B32US 12.5KIT Set of 6 Pistons is a high-performance kit for the BMW 3.2L S52 engine. It features a 12.5:1 compression ratio, forged 2618 aluminum construction for strength and durability, and a lightweight design for improved throttle response. Precision CNC machining ensures a perfect fit, and the advanced coating reduces friction and wear. Ideal for racing or high-performance street builds, this kit includes six pistons, wrist pins, locks, and rings for a complete installation.
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King - Corporate Logo
T#:41863727
Part#: CR8049GPC
In Stock at Vendor
$ 195.99 USD
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$ 195.99 USD
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GPC is King Bearings’ premium silver based tri-metal material for race applications, capable of withstanding 17,000 PSI. This makes it well-suited for Diesel Performance and Sprint Cars. GPC made with polymer coating plays a crucial role in safeguarding the bearings, in scenarios involving oil starvation and metal-to-metal contact. GPC Bearings are commonly used for Diesel Performance & Sprint Cars, which operate under extreme load and long duration. The silver-based composite & polymer coating plays a crucial role in safeguarding the bearings in oil starvation and metal-to-metal contact scenarios.
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Schrick - Corporate Logo
T#:26038541
Part#: 0256E1721-00
Special Order: No Guaranteed ETA
$ 1,351.99 USD
Free Shipping on orders $49 and up
Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the M42 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake- 272 Duration Intake @ 1mm - Intake Peak Timing - 110 Cam Lobe Lift Intake - 10. 4 Valve Lift w/o Valve Clearance Intake - 10, 4 Valve Clearance Intake - Hydraulic
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JE Piston - Corporate Logo
T#:33612896
Part#: 367880
Back Ordered
$ 1,674.99 USD
Free Shipping on orders $49 and up
JE Pistons for the N55 engine are high-performance forged pistons designed for BMW’s single-turbo 3.0L inline-six. Built for strength and durability under high boost, they feature optimized crown shapes and valve reliefs for better combustion. The lightweight design reduces rotational mass, improving throttle response and efficiency. With options for compression ratios and coatings, these pistons are perfect for tuning and motorsport use, delivering reliable performance on the street or track.
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JE Piston - Corporate Logo
T#:33512916
Part#: 371714
Back Ordered
$ 1,749.99 USD
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92.00/.827/3.6cc JE Pistons BMW S65B40

Schrick - Corporate Logo
T#:26038538
Part#: 0256A1561-00
Special Order: No Guaranteed ETA
$ 1,351.99 USD
Free Shipping on orders $49 and up
Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the M42 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Exhaust - 256 Duration Exhaust @ 1mm - Exhaust Peak Timing - 110 Cam Lobe Lift Exhaust - 10. 4 Valve Lift w/o Valve Clearance Exhaust - 10, 4 Valve Clearance Exhaust - Hydraulic
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Schrick - Corporate Logo
T#:26038539
Part#: 0256E1561-00
Special Order: No Guaranteed ETA
$ 1,351.99 USD
Free Shipping on orders $49 and up
Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the M42 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake- 256 Duration Intake @ 1mm - Intake Peak Timing - 110 Cam Lobe Lift Intake - 10. 4 Valve Lift w/o Valve Clearance Intake - 10, 4 Valve Clearance Intake - Hydraulic
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JE Piston - Corporate Logo
T#:33612895
Part#: 367879
In Stock at Vendor
$ 1,674.99 USD
Free Shipping on orders $49 and up
JE Pistons for the N55 engine are high-performance forged pistons designed for BMW’s single-turbo 3.0L inline-six. Built for strength and durability under high boost, they feature optimized crown shapes and valve reliefs for better combustion. The lightweight design reduces rotational mass, improving throttle response and efficiency. With options for compression ratios and coatings, these pistons are perfect for tuning and motorsport use, delivering reliable performance on the street or track.
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BMW M10 4 Cyl. 316-Degree - Counter Clockwise Distributor - Camshaft ...
For Vehicles With Counter Clockwise Distributor Only
Schrick - Corporate Logo
T#:26638213
Part#: 000201160-04
Special Order: No Guaranteed ETA
$ 1,511.99 USD
Free Shipping on orders $49 and up
$ 1,511.99 USD
Free Shipping on orders $49 and up
Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the M10 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake - 316 Duration Intake @ 1mm - 278 Duration Exhaust - 316 Duration Exhaust @ 1mm - 278 Intake Peak Timing - 100 Exhaust Peak Timing - 100 Cam Lobe Lift Intake - 9, 1 Cam Lobe Lift Exhaust - 9, 13 Valve Lift w/o Valve Clearance Intake - 11, 9 Valve Lift w/o Valve Clearance Exhaust - 11, 9 Valve Clearance Intake - 0, 25 Valve Clearance Exhaust - 0,3
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ACL - Corporate Logo
T#:34114251
Part#: 7M1512H-STD
Special Order: No Guaranteed ETA
$ 291.99 USD
Free Shipping on orders $49 and up

Introducing the ACL Race Series High-Performance Main Bearing Set, meticulously crafted for BMW B58 and S58 engines. Take your BMW’s engine durability and performance to the next level with these race-proven main bearings, designed to handle the demands of aggressive driving and high-RPM scenarios.

Built with ACL’s Duraglide tri-metal technology, this main bearing set ensures exceptional oil flow and resistance to wear, even in extreme conditions. Engineered for performance, this upgrade is a direct replacement for stock BMW main bearings, providing enhanced strength and longevity without compromising factory tolerances.

Key Features:

Race-proven design: Ideal for performance builds, this complete set delivers superior oiling and heat resistance, making it perfect for high-RPM use. Precision fitment: Engineered specifically for BMW’s B and S series engines, offering a reliable solution for common crankshaft bearing wear issues. Duraglide technology: Featuring tri-metal construction, including a copper-lead base and high-strength overlay, for improved oil retention and reduced friction. High-load capacity: Designed to withstand the rigors of spirited driving and competition, preventing distortion and wear during peak performance. Optimized for high performance: Eliminates tin flash plating, allowing for better bearing-to-housing contact and improved durability under extreme pressure. Whether you're rebuilding your BMW for the track or simply want to ensure reliable performance under demanding conditions, the ACL Race Series Main Bearing Set offers the perfect upgrade solution. Boost your engine’s reliability and extend its lifespan with this high-performance bearing set.

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JE Piston - Corporate Logo
T#:33612902
Part#: 338097
Back Ordered
$ 1,649.99 USD
Free Shipping on orders $49 and up
JE Pistons for the N55 engine are precision-engineered for BMW’s single-turbo 3.0L inline-six. These forged pistons are built for high-performance applications, offering exceptional strength and durability under extreme conditions. Designed to handle high boost pressures and increased power, they feature optimized crown shapes and valve reliefs to improve combustion efficiency. Their lightweight construction reduces rotational mass, enhancing throttle response and engine efficiency. With customizable options for compression ratios and coatings, JE Pistons are ideal for tuning and motorsport setups, ensuring reliable performance in both street and track environments.
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BMW M10 4 Cyl. 304-Degree - Clockwise Distributor - Camshaft ...
For Vehicles With Clockwise Distributor Only
Schrick - Corporate Logo
T#:556661
Part#: 000201040-01
Special Order: No Guaranteed ETA
$ 1,161.99 USD
Free Shipping
$ 1,161.99 USD
Free Shipping
Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the M10 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake - 304 Duration Intake @ 1mm - 262 Duration Exhaust - 304 Duration Exhaust @ 1mm - 262 Intake Peak Timing - 108 Exhaust Peak Timing - 108 Cam Lobe Lift Intake - 8, 2 Cam Lobe Lift Exhaust - 8, 21 Valve Lift w/o Valve Clearance Intake - 10, 5 Valve Lift w/o Valve Clearance Exhaust - 10, 5 Valve Clearance Intake - 0, 25 Valve Clearance Exhaust - 0,3
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JE Piston - Corporate Logo
T#:33612887
Part#: 389618
Back Ordered
$ 1,722.99 USD
Free Shipping on orders $49 and up
The JE Pistons for the B58 engine are high-performance forged pistons designed for BMW's 3.0L inline-six turbocharged engine. These pistons are built with aerospace-grade materials, offering superior strength and durability under extreme conditions. They feature precision-machined surfaces, optimized for high boost applications, reduced friction, and enhanced thermal management. JE Pistons are known for their lightweight design, which improves engine response, while maintaining reliability for both street and track use. Customizable options for compression ratios and coatings are often available to suit specific performance goals.
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CP Carrillo - Corporate Logo
T#:20979680
Part#: SCR5150-6
Back Ordered
$ 1,845.99 USD
Free Shipping on orders $49 and up
Carrillo rods are your number one option for performance connecting rods! If you are looking to upgrade your M52TU / M50 engine to handle greater power, we highly recommend these Pro-H connecting rods. Upgrading connecting rods in your engine can bring several benefits, particularly if you're looking to enhance performance, reliability, and overall durability. Here are some reasons why you might consider investing in upgraded connecting rods: Increased Strength: Upgraded connecting rods are often made from stronger materials, such as forged steel or titanium, compared to stock rods. This increased strength helps withstand higher levels of stress and load, making them suitable for high-performance applications. Improved Durability: Enhanced materials and manufacturing processes contribute to improved durability, reducing the risk of connecting rod failure, especially in high-stress situations. This is crucial for engines that undergo frequent high-speed or high-stress conditions, such as in racing or heavy-duty applications. Higher RPM Capability: Upgraded connecting rods are designed to handle higher engine RPM (revolutions per minute) without succumbing to fatigue or deformation. This is beneficial for those seeking increased horsepower and torque at higher engine speeds. Reduced Weight: Some upgraded connecting rods are engineered to be lighter while maintaining strength, contributing to a lower overall rotating mass in the engine. This can result in quicker revving, improved throttle response, and better overall performance. Enhanced Precision: Upgraded rods often undergo more precise machining processes, ensuring tight tolerances and improved balance. This precision can lead to better engine stability and reduced vibration, ultimately extending the life of engine components. Compatibility with High-Performance Builds: If you're planning on modifying your engine for increased horsepower through methods like turbocharging or supercharging, upgraded connecting rods become essential. They provide the necessary strength and reliability to handle the increased stresses associated with forced induction. Prevention of Catastrophic Failures: Upgrading connecting rods can act as a preventive measure against catastrophic engine failures. The improved strength and durability reduce the risk of a connecting rod breaking, which could lead to severe engine damage. Specifications: CC(in): 5.512 CC(mm): 140 Style: PRO-H Bolt Size: 3/8 Bolt Type: WMC Pin Width(in): 0.862 Pin Width(mm): 21.89 Big Width(in): 0.862 Bid Width(mm): 21.89 Big Bore(in): 1.8898 Big Bore(mm): 48.001 Pin Size: 22mm QTY: Set of 6 Founded by Fred Carrillo in 1963, Carrillo Connecting Rods was established with an unwavering commitment to uncompromising standards in manufacturing. Fred recognized that the relentless pursuit of speed demanded an equally fervent dedication to the quality of components. This foundational philosophy remains as strong today as it was at the inception of Carrillo in 1963. At CP-Carrillo, quality and pride are inseparable. The process of crafting a CP-Carrillo rod transcends mere forging, production targets, and shipping deadlines. The evolution of connecting rod design has become a collaborative effort involving skilled specialists. Each connecting rod is a precision symphony, with material specialists, forging experts, production craftsmen, design engineers, and engine specialists contributing their expertise and artistry. Customer feedback plays a pivotal role in our continuous product improvement. The close interaction between customers, engineering, and manufacturing fosters the most effective rod designs, enhancing accuracy and service—a value that becomes apparent during your engine build. CP-Carrillo's dimensional integrity stands unparalleled, setting a standard of excellence in the industry.
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JE Piston - Corporate Logo
T#:33612886
Part#: 389617
Back Ordered
$ 1,722.99 USD
Free Shipping on orders $49 and up
The JE Pistons for the B58 engine are high-performance forged pistons designed for BMW's 3.0L inline-six turbocharged engine. These pistons are built with aerospace-grade materials, offering superior strength and durability under extreme conditions. They feature precision-machined surfaces, optimized for high boost applications, reduced friction, and enhanced thermal management. JE Pistons are known for their lightweight design, which improves engine response, while maintaining reliability for both street and track use. Customizable options for compression ratios and coatings are often available to suit specific performance goals.
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CP Carrillo - Corporate Logo
T#:28770023
Part#: SC7510
Back Ordered
$ 885.99 USD
Free Shipping on orders $49 and up

Upgrade the engine performance of your Mini R53 with the MINI R53 CP Forged Piston & Ring Set (Set Of 4) - 77mm (standard Size). This set of high-quality forged pistons and rings is designed to deliver superior durability and performance, ensuring optimal engine power and reliability.

  • Enhances engine performance
  • Provides superior durability
  • Ensures optimal engine power and reliability
  • Includes a set of 4 pistons and rings
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CP Carrillo - Corporate Logo
T#:48367042
Part#: CPFPSM54B25848.5
Back Ordered
$ 1,399.99 USD
Free Shipping on orders $49 and up
CP Carrillo offers arguably the highest qulaity pistons on the market for BMWs, engineered for maximum power and durability. Utilizing high-strength, lightweight materials and advanced engineering and design to ensure they are the perfect choice for any M54B25 engine and application, from street to track use.
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BMW M10 4 Cyl. 304-Degree - Counter Clockwise Distributor - Camshaft ...
For Vehicles With Counter Clockwise Distributor Only
Schrick - Corporate Logo
T#:26638212
Part#: 000201040-02
Special Order: No Guaranteed ETA
$ 1,161.99 USD
Free Shipping on orders $49 and up
$ 1,161.99 USD
Free Shipping on orders $49 and up
Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the M10 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake - 304 Duration Intake @ 1mm - 262 Duration Exhaust - 304 Duration Exhaust @ 1mm - 262 Intake Peak Timing - 108 Exhaust Peak Timing - 108 Cam Lobe Lift Intake - 8, 2 Cam Lobe Lift Exhaust - 8, 21 Valve Lift w/o Valve Clearance Intake - 10, 5 Valve Lift w/o Valve Clearance Exhaust - 10, 5 Valve Clearance Intake - 0, 25 Valve Clearance Exhaust - 0,3
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BMW M10 4 Cyl. 284-Degree - Clockwise Distributor - Camshaft ...
For Vehicles With Clockwise Distributor Only!
Schrick - Corporate Logo
T#:26638210
Part#: 000201840-01
Special Order: No Guaranteed ETA
$ 1,161.99 USD
Free Shipping on orders $49 and up
$ 1,161.99 USD
Free Shipping on orders $49 and up
Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the M10 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake - 284 Duration Intake @ 1mm - 243 Duration Exhaust - 284 Duration Exhaust @ 1mm - 243 Intake Peak Timing - 110 Exhaust Peak Timing - 110 Cam Lobe Lift Intake - 7, 2 Cam Lobe Lift Exhaust - 7, 21 Valve Lift w/o Valve Clearance Intake - 9, 5 Valve Lift w/o Valve Clearance Exhaust - 9, 5 Valve Clearance Intake - 0, 2 Valve Clearance Exhaust - 0,3
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JE Piston - Corporate Logo
T#:33646335
Part#: 345629
Back Ordered
$ 1,349.99 USD
Free Shipping on orders $49 and up
The BMW S50B32 Euro pistons are forged aluminum, designed for high strength and lightweight performance. With an 86.4 mm bore and a 11.3:1 compression ratio, they ensure efficient combustion. The piston crown shape is optimized for airflow and high RPMs, contributing to the engine’s 321 hp output. The kit includes high-quality piston rings for excellent sealing and minimal friction. Bore Diameter: 87.00 Oil Ring Thickness: 0.111 Piston Volume: -26.00
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JE Piston - Corporate Logo
T#:33646299
Part#: 297170S
Back Ordered
$ 299.99 USD
Free Shipping on orders $49 and up

JE Pistons BMW S52B32 USA Piston – 86.50 mm Bore – 1.220 in. CH, -25.10 CC is an exceptional choice for BMW enthusiasts seeking to boost their engine's performance. Offered by Turner Motorsport, this high-quality piston is specifically engineered for the BMW S52B32 engine, ensuring a precise fit and enhanced reliability. Its optimized design significantly increases compression, resulting in improved horsepower and torque for both racing and daily driving.

  • Increases compression ratio for better power output
  • Lightweight construction enhances overall engine performance
  • Designed for durability and longevity in high-stress environments
  • Ensures a perfect fit for the BMW S52B32 engine
  • Ideal for both competitive racing and everyday driving scenarios
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CP Carrillo - Corporate Logo
T#:1887215
Part#: 5709B6S-06
Back Ordered
$ 2,189.99 USD
Free Shipping on orders $49 and up
0.822" pin width, 22mm pin size