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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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BMW M30 6 Cyl. 282-Degree - Distributor - Camshaft
For Vehicles Equipped With a Distributor Only
Schrick - Corporate Logo
T#:400550
Part#: 002201820-00
Special Order: No Guaranteed ETA
$ 1,567.99 USD
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$ 1,567.99 USD
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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 M30 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 - 282 Duration Intake @ 1mm - Duration Exhaust - 282 Duration Exhaust @ 1mm - Intake Peak Timing - 110 Exhaust Peak Timing - 110 Cam Lobe Lift Intake - 8, 4 Cam Lobe Lift Exhaust - 8, 4 Valve Lift w/o Valve Clearance Intake - 10, 6 Valve Lift w/o Valve Clearance Exhaust - 10, 6 Valve Clearance Intake - 0, 25 Valve Clearance Exhaust - 0, 25
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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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Genuine BMW - Corporate Logo
T#:34345
Part#: 11341308158
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$ 131.99 USD
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$ 131.99 USD
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Genuine BMW Cam Follower
This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Fits BMW Engines including:
S14,S38


5150 Autosport - Corporate Logo
T#:44733204
Part#: 5150TBKS63F90XT
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$ 10,749.99 USD
$ 10,749.99 USD
5150's Pro-Series Turbo Build Kit is an all-inclusive internals kit assembled to prepare your S63 4.4L engine for high-horsepower performance. This Pro-Xtreme kit is perfect for those who are looking to run upgraded turbos and plan to track or race their S63-powered BMW, enabling the S63 engine to produce up to 1600 HP!
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JE Piston - Corporate Logo
T#:383222
Part#: JE297173
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$ 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#:33713104
Part#: 345633
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$ 1,349.99 USD
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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#: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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Febi Intake Valve - Sold Each - E28, E30, E34
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381760
Part#: 11341708895
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$ 14.99 USD
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$ 14.99 USD
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Replace your worn valves

Febi Cylinder Head Bolt Set - E30, E34
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:363803
Part#: 11121726478
Special Order: No Guaranteed ETA
$ 32.99 USD
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$ 32.99 USD
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A complete set of 14 cylinder head bolts
5150 Autosport - Corporate Logo
T#:26171645
Part#: CP-FPS-S54-XT
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Starting at $ 2,268.98 USD
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Starting at $ 2,268.98 USD
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CP-Carrillo sets the benchmark for premium aftermarket forged pistons. Crafted with high-strength, lightweight materials and cutting-edge engineering, this BMW S54 piston set boasts the following features: Lightweight Design: Constructed from forged aluminum alloy, CP-Carrillo pistons offer reduced weight, enhancing engine responsiveness and acceleration for a dynamic driving experience. Advanced Engineering: Leveraging state-of-the-art technology, CP-Carrillo engineers optimize combustion, fuel efficiency, and power output, ensuring peak performance in every application. Wide Configuration Range: With a variety of bore sizes and compression ratios available, CP-Carrillo provides options to tailor pistons to specific engine builds and performance objectives. Quality Construction: Each CP-Carrillo piston undergoes precision machining and rigorous testing to meet exacting standards, guaranteeing consistent quality and performance in every set. Engineered by one of motorsport's most respected names, CP-Carrillo pistons are the ultimate choice for the S54 engine, whether for street performance or track dominance. Piston Sets Include: Pistons Rings Pins Locks Spec Sheet Optional Extras: Skirt Coating - Adding a Protective Layer Between the Sides of the Piston and Cylinder Walls Dome Coating - Adding a Protective Layer to the Top of The Piston HD-Wrist Pins - A Must if You are Planning on Going Beyond 850 HP! X Forging - Reducing Rotational Mass By Moving the Wristpin Inwards and Shortening it While Increasing Overall Strength Please Note: It is essential to have all engine modifications performed by a qualified professional to ensure proper installation and optimal engine performance, safety, and reliability.
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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#:33846569
Part#: 312385
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$ 899.99 USD
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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#:33846574
Part#: 321362
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$ 899.99 USD
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JE Pistons 13.0:1 High-Compression Piston Kit - BMW S14B23 (Set of 4)

Unleash the full potential of your BMW S14B23 engine with the JE Pistons 13.0:1 Compression Piston Kit. Specifically designed for naturally aspirated applications, this high-compression setup boosts power, responsiveness, and efficiency, making it the ideal choice for race-focused builds or high-performance street engines. Built using JE Pistons' cutting-edge forging process, these pistons deliver unmatched strength and precision for your BMW engine.

Key Highlights:

  • 13.0:1 Compression Ratio: Optimized for maximum horsepower and torque in naturally aspirated engines, this high-compression setup elevates performance and throttle response, perfect for high-RPM environments.
  • Premium Forged Design: Manufactured from 2618 forged aluminum, these pistons are engineered for extreme durability and lightweight performance. Capable of withstanding high stress and temperatures, they offer reliability even under intense racing conditions.
  • Superior Combustion Efficiency: The piston dome is designed to optimize combustion chamber dynamics, promoting a clean burn and reducing the chance of detonation, while enhancing power output.
  • Friction-Reducing Coating: Skirt coating minimizes friction and wear, providing smoother operation and extending the lifespan of both the pistons and the engine.
  • Complete Set: Comes with four pistons, high-performance rings, wrist pins, and locks for a full installation package, making it easy to upgrade your engine with a single purchase.

Performance-Oriented Engineering:

Built to meet the demands of professional racers and performance enthusiasts, JE Pistons are trusted for their superior craftsmanship and strength. With a 13.0:1 compression ratio, this piston kit is the perfect solution for those looking to maximize power in naturally aspirated BMW S14B23 engines.

Application:

  • Fits BMW S14B23 Engines (E30 M3 models, race cars, and high-performance builds)
  • Ideal for naturally aspirated setups focusing on high RPM and peak power output.

Specifications:

  • Compression Ratio: 13.0:1, optimized for high-performance NA builds.
  • Material: Forged 2618 aluminum alloy for durability and strength.
  • Bore Size: Available in various sizes, including overbore options.
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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#:33612922
Part#: 345623
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$ 1,349.99 USD
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The JE Pistons for the BMW S50 engine are crafted for enthusiasts seeking increased performance and reliability. Made from high-strength forged aluminum, these pistons are designed to handle the demands of high-revving 3.0L inline-six engines. With a lightweight design to reduce rotational mass and improve throttle response, these pistons also feature optimized dome shapes for enhanced combustion. Ideal for high-performance builds, they come with options for custom compression ratios and coatings, ensuring durability and power whether on the street or track.
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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#: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#: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#:33846572
Part#: 321359
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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#:33746529
Part#: 297184
Back Ordered
$ 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#:33846577
Part#: 289078S
Back Ordered
$ 299.99 USD
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BMW S50B32 EURO Kit - Single Unit

Elevate your BMW S50B32 engine performance with the S50B32 EURO Kit, expertly designed for enthusiasts seeking to unlock the full potential of their engine. This high-performance kit is tailored specifically for the S50B32, known for its impressive power and engineering excellence. With this kit, you can experience enhanced horsepower, improved throttle response, and increased overall efficiency, making it ideal for both street and track applications.

Key Features:

  • Performance-Oriented Design: Each component in the S50B32 EURO Kit is crafted to improve engine output and efficiency, ensuring that you get the most out of your S50B32 engine.
  • Increased Horsepower and Torque: This kit is engineered to maximize power gains, allowing for greater acceleration and a more exhilarating driving experience.
  • Precision Fitment: Every part is manufactured to high standards, ensuring a perfect fit within your engine bay. This precision engineering minimizes installation time and enhances reliability.
  • Optimized Throttle Response: Experience quicker acceleration and sharper throttle response, enabling a more engaging and spirited driving experience.
  • Comprehensive Kit: The kit includes all necessary components for a complete upgrade, making it an excellent choice for both professionals and DIY enthusiasts looking to enhance their vehicle.

Applications:

  • Designed for BMW S50B32 Engines, perfect for high-performance builds, track-focused cars, or those looking to enhance their street-driven vehicles.
  • Suitable for a wide range of applications, from competitive motorsport to everyday driving.

Technical Specifications:

  • Compatibility: Tailored for the S50B32 engine platform.
  • Expected Performance Gains: Significant increases in horsepower and torque, translating to a more responsive and powerful engine.
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JE Piston - Corporate Logo
T#:27171928
Part#: 297120
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$ 1,324.99 USD
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JE Pistons Forged Piston Set of 6 – 87.5mm Bore – 11.5:1 CR – BMW E46 M3 S54B32 Maximize the performance of your BMW E46 M3’s S54B32 engine with this set of 6 JE forged pistons. Engineered for strength and high-revving capability, these pistons are built to withstand the demands of high-performance applications. 87.5mm Bore: Increased bore size for improved displacement and power output. Compression Ratio: 11.5:1: High-compression design enhances combustion efficiency and delivers more horsepower and torque. Forged Aluminum: Lightweight and durable, designed to handle high stress and heat, making it perfect for both street and track use. Precision Fit: Ensures seamless installation and compatibility with the BMW S54B32 engine, providing reliability under extreme conditions. Perfect for serious performance builds, these pistons offer a balance of durability, power, and efficiency.
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JE Piston - Corporate Logo
T#:5122283
Part#: 297119
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$ 1,324.99 USD
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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#:33713158
Part#: 297180
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$ 1,324.99 USD
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The JE Pistons BMW S50B30US 9:1 KIT is designed specifically for turbocharged or supercharged BMW 3.0L S50B30US engines. Featuring a lower 9:1 compression ratio, it provides increased reliability under high boost. Forged 2618 Aluminum construction delivers exceptional strength and heat resistance. Precision CNC machining ensures optimal fit and performance. Lightweight design enhances engine efficiency and response. This kit includes six pistons, wrist pins, locks, and rings, making it a great option for high-power forced induction builds.
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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#: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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MANLEY - Corporate Logo
T#:17073602
Part#: 646005CE-6
Back Ordered
8% off MSRP $ 1,423.99

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

$ 1,309.99 USD
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8% off MSRP
$ 1,423.99

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

$ 1,309.99 USD
Free Shipping on orders $49 and up

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#: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#:33846575
Part#: 321363
Back Ordered
$ 899.99 USD
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JE Pistons BMW S14B20 13.0:1 Compression Piston Kit - Set of 4

Unlock your BMW S14B20 engine’s true potential with the JE Pistons 13.0:1 High-Compression Piston Kit. Specifically engineered for naturally aspirated performance, these pistons are designed to deliver higher power output, sharper throttle response, and greater engine efficiency, making them perfect for track-focused builds or high-revving street machines. Built from high-strength, lightweight forged aluminum, these pistons offer the durability and precision needed to withstand the extreme demands of motorsport applications.

Key Benefits:

  • 13.0:1 Compression Ratio: Elevate engine performance with a higher compression ratio that optimizes cylinder pressure for maximum power, torque, and acceleration in naturally aspirated setups.
  • Forged for Strength and Lightness: Constructed from 2618 forged aluminum alloy, these pistons provide the ideal balance of strength and weight, ensuring maximum durability without sacrificing engine speed.
  • Efficient Combustion Design: Piston crown engineered to enhance combustion chamber dynamics, promoting cleaner, more efficient fuel burn while preventing detonation at high RPMs.
  • Low-Friction Skirt Coating: Coated piston skirts reduce friction during operation, extending the life of your pistons and improving overall engine performance.
  • Complete Installation Package: Includes four forged pistons, rings, wrist pins, and locks—everything you need to take your S14B20 engine to the next level.

Performance & Precision:

With JE Pistons, you get race-proven reliability and cutting-edge engineering. The 13.0:1 compression ratio boosts performance without compromising on durability, ensuring your BMW S14B20 engine delivers consistent, high-level power in any driving situation.

Application:

  • Fits BMW S14B20 Engines (perfect for high-performance street or track builds).
  • Ideal for naturally aspirated setups focused on maximizing power and efficiency.

Technical Specs:

  • Compression Ratio: 13.0:1, optimized for naturally aspirated engines.
  • Material: Forged 2618 aluminum for superior strength and heat resistance.
  • Bore Sizes: Custom bore sizes available, including overbore options.
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Febi - Corporate Logo
T#:56254756
Part#: 13627809334
Special Order: No Guaranteed ETA
New Item
$ 46.99 USD
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Maintain the crisp throttle response and reliable performance of your BMW with this Febi Bilstein Crankshaft Position Sensor.
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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JE Piston - Corporate Logo
T#:33713154
Part#: 297179
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$ 1,324.99 USD
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The JE Pistons BMW S50B30US 9:1 KIT is designed specifically for turbocharged or supercharged BMW 3.0L S50B30US engines. Featuring a lower 9:1 compression ratio, it provides increased reliability under high boost. Forged 2618 Aluminum construction delivers exceptional strength and heat resistance. Precision CNC machining ensures optimal fit and performance. Lightweight design enhances engine efficiency and response. This kit includes six pistons, wrist pins, locks, and rings, making it a great option for high-power forced induction builds.
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JE Piston - Corporate Logo
T#:33713143
Part#: 297174
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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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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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ACL - Corporate Logo
T#:34114251
Part#: 7M1512H-STD
Special Order: No Guaranteed ETA
$ 291.99 USD
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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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Elring - Corporate Logo
T#:27171911
Part#: 11128644674
Back Ordered
Sale - Save 3% $ 85.99

This product was last offered at the strikethrough price on
08-14-2026

$ 83.26 USD
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Sale - Save 3%
$ 85.99

This product was last offered at the strikethrough price on
08-14-2026

$ 83.26 USD
Free Shipping on orders $49 and up
Features robust steel construction engineered to handle the high heat and extreme cylinder pressures of turbocharged applications.

JE Piston - Corporate Logo
T#:33612895
Part#: 367879
In Stock at Vendor
$ 1,674.99 USD
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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#:33612887
Part#: 389618
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$ 1,722.99 USD
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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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JE Piston - Corporate Logo
T#:33612896
Part#: 367880
Back Ordered
$ 1,674.99 USD
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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#:33612902
Part#: 338097
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$ 1,649.99 USD
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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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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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Ina - Corporate Logo
T#:42301987
Part#: ZC0128
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$ 13.99 USD
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Keep your BMW’s heart pumping strong, use the INA Oil Pump Chain to replace your stetched and worn out oil pump chain to ensure your engines oiling system is operating at peak performance.


JE Piston - Corporate Logo
T#:33612886
Part#: 389617
Back Ordered
$ 1,722.99 USD
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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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