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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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Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...
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T#:374670
Part#: 11211706849
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$ 177.99

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

$ 172.99 USD
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$ 172.99 USD
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Standard bore
JE Piston BMW S50B30US 12.5 Kit
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JE Piston - Corporate Logo
T#:33746529
Part#: 297184
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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 Pistons BMW B48 2.0T - 82.00MM/-17.4CC
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JE Piston - Corporate Logo
T#:33746542
Part#: 384912
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$ 924.99 USD
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JE Pistons for BMW B48 2.0T - 82.00MM Bore, -17.4CC Dish Volume

High-Boost Forged Pistons for Your BMW B48 2.0T

JE Pistons delivers ultimate performance and durability with these forged pistons for the BMW B48 2.0T engine. Designed for high-boost and turbocharged setups, these pistons are engineered to handle extreme power and high cylinder pressures, making them ideal for performance tuning enthusiasts.

  • Engine Compatibility: Fits the BMW B48 2.0T engine found in models such as the BMW 3-Series, X1, X2, and Mini Cooper S/JCW.
  • Bore Size: 82.00mm for precise cylinder fitment and optimal sealing, ensuring maximum power and reliability.
  • Dish Volume: -17.4cc dish, engineered to lower the compression ratio, providing more room for forced induction setups to maximize boost pressure without detonation.
  • Forged 2618 Aluminum: These pistons are forged from aerospace-grade 2618 aluminum, offering exceptional strength and resistance to heat and stress, making them perfect for high-performance and race applications.
  • Lower Compression Ratio: The lowered compression ratio allows for safer tuning and improved performance in turbocharged builds, especially when running high boost.
  • Thermal Coating: JE’s advanced thermal coatings protect the piston from heat, reducing friction and ensuring longer service life in demanding conditions.
  • Lightweight Construction: Reduced reciprocating mass allows for quicker engine revs and improved throttle response, enhancing overall engine performance.
  • Boost-Ready Design: Built specifically for high-power turbocharged applications, these pistons help manage increased combustion pressures and improve combustion efficiency.
  • Pre-Balanced and Pin-Fitted: Balanced and pin-fitted for easy installation and improved durability under high-RPM and high-boost conditions.

Boost Your B48 to the Next Level

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JE Piston BMW N54B30 3.0T 85MM 9.5:1 KIT
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JE Piston - Corporate Logo
T#:33612912
Part#: 361360
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N54B30 3.0T 85MM 9.5:1 JE Pistons for the N54 engine are built for high performance, utilizing forged aluminum for maximum strength and reliability under high boost conditions. Designed specifically for BMW’s twin-turbo 3.0L inline-six, these pistons offer optimized combustion efficiency with precision-engineered domes and valve reliefs. Their lightweight design reduces engine stress, enhancing throttle response and power output. With customizable compression ratios and coatings, JE Pistons are perfect for tuning and high-performance applications, offering durability and performance for both street and track use.
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Supertech B46/B48 Forged Connecting Rods - SET Of Four CR-MINB48-H148...
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T#:23416540
Part#: CR-MINB48-H148.3
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Enhance your Mini's engine build with a set of four newly developed high-performance rods. Crafted from a robust 4340 alloy, these rods offer exceptional wear and fatigue resistance under optimal conditions. Featuring an H-beam design and equipped with ARP 2000 bolts capable of achieving a clamp load of 220,000 psi, these rods guarantee durability and strength.
  • Manufactured from high-tensile strength 4340 alloy for exceptional durability
  • H-beam design for improved strength and reliability
  • Equipped with ARP 2000 bolts achieving a clamp load of 220,000 psi
  • Designed in-house using advanced CAD and FEA software for superior quality
  • Center to Center: 148.30mm
  • PE Bore: 22mm full float / PE Width: 21mm
  • BE Bore: 53.66mm / BE Width: 23.9mm
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URO Variable Valve Timing Sprocket - Intake Camshaft - BMW N20 2.0L ...
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URO - Corporate Logo
T#:43750198
Part#: 11367583818
In Stock
$ 187.99 USD
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This sprocket is the replacement cam gear for the inlet camshaft. Replace this so your timing chain meshes perfectly with the gear teeth for optimal performance.

5mm Single Groove Valve Keeper - Priced Each
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T#:21604312
Part#: KPR-5.0-7S
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Two required per valve, necessary use with certain supertech valves 5.0mm single groove
BMW Connecting Rods - 145mm - N54B30 (Set Of 6)
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CP Carrillo - Corporate Logo
T#:23714964
Part#: SCR7567-6
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JE Pistons BMW S52B32
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JE Piston - Corporate Logo
T#:33713131
Part#: 297173
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JE Pistons Set of 6 – BMW S52B32US 11.5:1 Compression Kit Upgrade your BMW S52B32US engine with this premium set of 6 JE Pistons, engineered for serious performance. 11.5:1 Compression Ratio: This high compression design enhances combustion efficiency, resulting in increased horsepower and torque. Forged Aluminum: Crafted for strength and lightweight performance, these pistons are built to handle high-stress conditions. Engineered Fit: Specifically designed for the S52B32US, ensuring a seamless installation and optimal performance. Ideal for performance enthusiasts looking to push their engine to new heights, this piston kit offers reliability and power for both street and track applications.
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ARP Head Stud Kit BMW S55 Custom Age 625+
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N55 Engines it is a MUST to drill and tap!
5150 Autosport - Corporate Logo
T#:41458801
Part#: ARP-HSK-S55-CA
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$ 899.99 USD
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Upgrade your S55 with the ARP Head Stud Kit BMW S55 Custom Age 625+ and drive with confidence under pressure.
JE Pistons BMW N55 Single
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JE Piston - Corporate Logo
T#:33846578
Part#: 338096S
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B

JE Pistons BMW N55B30 Piston - 3.307 in Bore

Transform your BMW N55B30 engine with the high-performance JE Pistons Piston, engineered for those who demand power, efficiency, and reliability. With a precise 3.307-inch bore size, this piston is designed to enhance combustion dynamics, resulting in improved horsepower and torque. Crafted from premium forged aluminum, the JE piston is built to endure the rigors of high-performance driving, making it an ideal choice for both track enthusiasts and everyday drivers.

Key Features:

  • Optimized Design: Each piston is meticulously crafted to ensure a perfect fit for the N55B30 engine, maximizing combustion efficiency and overall engine performance.
  • 3.307-Inch Bore: This specific bore size enhances airflow and combustion efficiency, enabling your engine to unleash its full power potential while maintaining reliability.
  • Durable Forged Construction: Made from high-quality forged aluminum, this piston offers exceptional strength and lightweight properties, making it capable of withstanding extreme conditions found in performance applications.
  • Enhanced Combustion Characteristics: The uniquely designed piston crown promotes efficient fuel burn, reducing the chances of detonation and improving power delivery across the RPM range.
  • Trusted Performance: JE Pistons are renowned in the automotive community for their durability and reliability, making them a preferred choice for high-performance builds.

Applications:

  • Fits BMW N55B30 Engines – Perfect for high-performance applications, whether on the track or on the street.
  • Ideal for builders looking to enhance their engine’s capabilities, ensuring maximum power and efficiency.

Technical Specifications:

  • Bore Size: 3.307 inches, specifically designed for optimal performance in the N55B30 engine.
  • Material: Premium forged aluminum for lightweight and strength.
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JE Piston BMW/TOYOTA B58B30
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JE Piston - Corporate Logo
T#:33746539
Part#: 371720
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JE Pistons for BMW/TOYOTA B58B30 - 3.268" Bore, .866" Pin, -12.3CC Dish

Precision-Forged Performance for BMW and Toyota B58 Engines

Unlock the full potential of your BMW B58B30 or Toyota B58 engine with JE’s forged piston set, designed to provide durability, lower compression, and efficiency for turbocharged or high-performance builds. Whether you’re aiming for street performance or track dominance, these pistons offer the strength and reliability needed for modern forced induction engines.

  • Engine Compatibility: Fits both BMW B58B30 and Toyota B58 engines, making it ideal for vehicles like the Toyota Supra (A90) and BMW models such as the G29 Z4 and G20 3-Series.
  • Bore Size: 3.268" (83mm) bore for precise fitment, ensuring optimal sealing and performance in high-horsepower applications.
  • Pin Diameter: 0.866" (22mm) wrist pin for secure and reliable piston-rod engagement, even under extreme stress.
  • Dish Volume: -12.3cc, providing a lower compression ratio for boosted applications, perfect for turbo setups aiming for high power with reduced knock potential.
  • 2618 Forged Aluminum Alloy: Manufactured from high-strength 2618 aluminum, renowned for its durability, heat resistance, and ability to withstand the intense conditions of high-performance engines.
  • Compression Control for Forced Induction: The -12.3cc dish volume is engineered for lower compression, allowing for safe tuning under high boost pressure while maintaining reliability.
  • Thermal Coating: Advanced coatings minimize heat absorption, improving durability under intense engine loads and extending piston life.
  • Lightweight Design: Optimized for reduced mass, these pistons improve throttle response and rev speed without sacrificing strength or endurance.
  • Track-Tested Performance: Designed and tested for both street and competition use, ensuring that you get race-level performance in your everyday build.

Built for Boosted Power and Reliability

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Cylinder Head Bolt - Set Of 8
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Elring - Corporate Logo
T#:15247125
Part#: 572.630
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Febi Cylinder Head Bolt Set - E30, E34
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Febi - Corporate Logo
T#:363803
Part#: 11121726478
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$ 32.99 USD
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$ 32.99 USD
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A complete set of 14 cylinder head bolts
JE Pistons BMW N54B30 Single Piston
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JE Piston - Corporate Logo
T#:33846580
Part#: 367878S
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B

JE Pistons BMW N54B30 Ultra Series Piston - 3.327in Bore (9.5:1 Compression Ratio)

Enhance your BMW N54B30 engine’s performance with the JE Pistons Ultra Series Piston, engineered for those who seek uncompromising power and precision. Featuring a 3.327-inch bore and a 9.5:1 compression ratio, this piston is specifically designed to optimize combustion efficiency and maximize horsepower, making it an excellent choice for both street enthusiasts and competitive racers.

Key Features:

  • Precision 3.327-Inch Bore: Tailored for the N54B30 platform, this bore size enhances airflow and combustion, translating to significant gains in horsepower and torque while maintaining engine reliability.
  • Balanced 9.5:1 Compression Ratio: This ideal compression ratio allows for responsive throttle performance, making it suitable for various setups, including turbocharged applications where power and efficiency are paramount.
  • Ultra Series Forged Construction: Crafted from premium forged aluminum, this piston provides a robust combination of strength and lightweight characteristics, ensuring durability under high-stress conditions.
  • Advanced Combustion Chamber Design: The uniquely shaped piston crown promotes efficient fuel atomization and burn, enhancing overall engine performance and reducing the risk of pre-ignition or detonation.
  • Engineered for Performance: JE Pistons are known for their commitment to quality, ensuring that each piston meets stringent performance standards for reliability and longevity.

Applications:

  • Designed for BMW N54B30 Engines – Ideal for high-performance builds, whether for spirited street driving or competitive motorsport.
  • Perfect for enthusiasts looking to boost power in turbocharged or naturally aspirated configurations.

Technical Specifications:

  • Bore Size: 3.327 inches, ensuring optimal fit and performance for the N54B30 engine.
  • Compression Ratio: 9.5:1, balancing power output with engine safety.
  • Material: High-strength forged aluminum, offering superior durability and performance.
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BMW/Toyota B58B30 JE Pistons - Single
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JE Piston - Corporate Logo
T#:33846582
Part#: 371718S
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BMW S50 JE Pistons EURO FSR KIT
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JE Piston - Corporate Logo
T#:33612921
Part#: 345622
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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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Genuine BMW Threaded Pipe Joint - 11112140435 - E30, E34, E28 ...
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T#:6576
Part#: 11112140435
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Genuine BMW Threaded Pipe Joint - M20X1,5
This item fits the following BMW Chassis:
E30,E34

Fits BMW Engines including:
M20


BMW M30 6 Cyl. 282-Degree - Distributor - Camshaft
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For Vehicles Equipped With a Distributor Only
Schrick - Corporate Logo
T#:400550
Part#: 002201820-00
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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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5150 Autosport Bully Stroker Kit - BMW S58 - With Sleeves
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5150 Autosport - Corporate Logo
T#:26205008
Part#: 5150-SK-S58-S
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Starting at $ 9,499.99 USD
Starting at $ 9,499.99 USD
Bigger displacement, more torque, and more power. 5150 Autosport's Bully Stroker kit is specifically designed for BMW S58 Engines. Utilizing CP-Carrillo Pro-Xtreme Forged Pistons and Pro-Xtreme Rods, as well as the 5150 4340 Billet Steel Crankshaft, our stroker kits have stood up to the tests and trials of high horsepower applications time and time again. Benefits of Stroking an Engine - With higher displacement, your engine will produce greater power and torque, thanks to increased cylinder volume and improved air-fuel mixture combustion - The longer stroke in the crankshaft increases the leverage on the connecting rods, resulting in increased torque output at lower RPMs - Improved throttle response - Increased horsepower Kit Contents - 5150 Autosport 4340 Billet Steel Crankshaft - Professionally turned, polished, and coated with anti-wear coating - Fully balanced - CP-Carrillo Pro-Xtreme Connecting Rods - CP-Carrillo Pro-Xtreme Forged Pistons** - CP-Carrillo Piston Wrist Pins - CP-Carrillo Piston Rings - CP-Carrillo Piston Wire Locks The 5150 stroker kit increases displacement to 3325 cc
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5150 Autosport Pro-Series Turbo Build Kit - Pro-Xtreme - BMW F90 M5 S...
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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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CP-Carrillo Forged Piston Set - M54B28 Std. Size
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For Vehicles With M54B25 Engine Only
5150 Autosport - Corporate Logo
T#:26071892
Part#: M54B25-CPP-84
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Starting at $ 2,206.98 USD
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Starting at $ 2,206.98 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 M54B25 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 M54B25 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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INA Timing Guide Rail - Priced Each
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Ina - Corporate Logo
T#:7164804
Part#: 11311736408
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$ 10.99 USD
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Timing chains tend to wear grooves into the guide rails over time. Too much wear could cause damage to the chain if the rail goes unplaced. OEM replacement for BMW part # 11311736408. OEM Schaeffler (INA, LuK, Ruville, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport. As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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JE Piston BMW S50B30US 86.25MM 12..5:1 KIT
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JE Piston - Corporate Logo
T#:33713106
Part#: 361348
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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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Febi Cylinder Head Bolt Set - E39, E46, E53
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Febi - Corporate Logo
T#:363746
Part#: 11121740065
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$ 40.99 USD
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$ 40.99 USD
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Includes all head bolts in one cylinder head
Ina Rocker Arm - E28, E30, E34
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Ina - Corporate Logo
T#:557719
Part#: 11331271429
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Broken rocker arms are a real concern. Replace your broken arm or preventatively replace all of them.
JE Pistons BMW S14B23
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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 Pistons BMW S50B32 EURO KIT
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JE Piston - Corporate Logo
T#:33713115
Part#: 289079
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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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BMW B48 2.0T JE Pistons
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JE Piston - Corporate Logo
T#:33746564
Part#: 384915
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Here’s another description for the JE Pistons for BMW B48 2.0T with 83.00MM / -12.3CC specs, focusing on a more dynamic and performance-driven tone:


JE Pistons for BMW B48 2.0T - 83.00MM Bore, -12.3CC Dish Volume

Maximize Your BMW B48 2.0T's Power Potential

Unlock serious performance gains with JE’s forged pistons for the BMW B48 2.0T engine. These pistons are engineered to withstand the rigors of high-boost, turbocharged applications, offering the strength, precision, and durability needed for extreme power builds.

  • Engine Compatibility: Designed to fit the BMW B48 2.0T engine, common in models like the BMW 3-Series (G20), 4-Series, and MINI Cooper S/JCW.
  • Bore Size: Featuring an 83.00MM bore, these pistons offer a perfect fit for increased displacement, improving engine efficiency and power output.
  • Dish Volume: The -12.3CC dish helps lower compression, providing more room for increased boost pressure without compromising safety or risking detonation. Perfect for high-boost turbocharged setups.
  • High-Strength Forged 2618 Aluminum: Built using aerospace-grade 2618 forged aluminum, these pistons deliver unmatched durability and heat resistance, making them ideal for racing or high-performance street builds.
  • Turbo-Ready Design: Optimized for forced induction, the -12.3CC dish enhances airflow and combustion efficiency, allowing you to push more power safely while maintaining reliability.
  • Advanced Thermal Coating: JE’s proprietary thermal coatings reduce friction and heat absorption, ensuring longevity and consistent performance, even in extreme conditions.
  • Lightweight Performance: Engineered to minimize weight, these pistons improve engine response and revving capabilities, resulting in a faster, more agile driving experience.
  • Pre-Fitted and Balanced: Delivered pre-fitted with wrist pins and balanced for easy installation, these pistons ensure your engine runs smoothly and efficiently from the moment they’re installed.

Built to Handle Extreme Boost

These JE Pistons are the ultimate upgrade for anyone looking to take their BMW B48 2.0T to the next level. With a design tailored to withstand high-pressure turbo setups and extreme performance demands, they provide the confidence and reliability needed to extract every ounce of power from your engine. Perfect for racers and performance enthusiasts alike.

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JE Piston BMW S50B30US 12.5 Kit
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T#:33746527
Part#: 297183
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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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CP Forged Piston Set BMW M20 B27 Std.
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T#:26205091
Part#: CP-FPS-M20-B27
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CP-Carrillo represents the highest quality pistons on the market, engineered for maximum power and durability. Utilizing high-strength, lightweight materials and advanced engineering, this BMW M20B27 piston set features: Lightweight Design: CP-Carrillo pistons are made from high-strength, lightweight materials, such as forged aluminum alloy. Reduced piston weight contributes to improved engine responsiveness and acceleration. Advanced Engineering: CP-Carrillo engineers use state-of-the-art technology and engineering techniques to manufacture pistons that offer optimized combustion, improved fuel efficiency, and increased power output. CP-Carrillo pistons are the best choice for any M20 engine and application, from street bully to all-out track car, and are engineered by one of the most respected names in motorsport to improve performance and reliability. Piston Sets Include: - Pistons - Rings - Pins - Locks - Spec Sheet
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BMW S50B30 EURO FSR KIT
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JE Piston - Corporate Logo
T#:33612922
Part#: 345623
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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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MINI W10 W11 CP Forged Piston & Ring Set (Set Of 4) - 77.5mm (Plus Si...
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T#:31324219
Part#: SC7511
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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 Pistons BMW S50B30US 11.5KIT Set Of 6 Pistons
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T#:20979714
Part#: 297182
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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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Genuine BMW Cam Follower - E28 M5 E34 M5 E30 M3
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T#:34345
Part#: 11341308158
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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

JE Pistons BMW E30 M3
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T#:33846573
Part#: 321360
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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 Pistons Euro Kit BMW S50B32
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T#:33713109
Part#: 289074
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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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BMW S52B32US - 12.5 JE Pistons
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T#:33713148
Part#: 297175
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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 BMW S54B32 12.5:1 - Single Piston 87.00mm
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T#:33646293
Part#: 297119S
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The 12.5:1 compression JE piston for the S54b32 is designed to help maintain thermal efficiency and minimizes weight. Detail: 12.5:1 Compression 87.00 mm Bore – 1.271 in. CH, -8.70 CC

JE Pistons BMW E30 M3
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T#:33846575
Part#: 321363
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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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JE Pistons BMW S52B32US 12.5 Kit
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T#:33713143
Part#: 297174
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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 Pistons BMW S14B32 E30 M3
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T#:33846570
Part#: 312386
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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 BMW S50B30 EURO KIT
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T#:33713116
Part#: 289190
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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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Febi Intake Valve - Sold Each - E28, E30, E34
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T#:381760
Part#: 11341708895
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Replace your worn valves

BMW S54B32 - 87.5MM Bore, 12.5:1 CR
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T#:27171928
Part#: 297120
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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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CP-Carrillo Pro-Xtreme Forged Piston Set Std. Size - S54
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T#:26171645
Part#: CP-FPS-S54-XT
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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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N54B30 32cc Platinum Series Dish Extreme Duty Piston Set - 84.5mm Bor...
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MANLEY - Corporate Logo
T#:17073602
Part#: 646005CE-6
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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
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JE Pistons 11.5 Kit - Set Of 6 Pistons - BMW S50B30US
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T#:12610322
Part#: 297181
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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 Pistons BMW S50B32 Euro Kit 87mm Bore -5.2cc Dome 0.827in ...
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T#:33713104
Part#: 345633
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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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BMW S50B30 JE Pistons EURO FSR KIT
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T#:33646301
Part#: 345627
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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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