BMW Internal Engine Parts for BMW Z Series E85/6 (2003-2008)

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Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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5150 Autosport - Corporate Logo
T#:38419052
Part#: 5151-HPRBS-S54
Ships in 4 Business Days
$ 399.99 USD
Free Shipping on orders $49 and up
Upgrade your BMW S54 engine with the 5150 AutoSport High Performance Rod Bearing Set—a premium solution designed to improve durability, reliability, and longevity. This high-performance bearing set addresses the well-known rod bearing wear issues found in the E46 M3, Z3M, and Z4M engines, offering superior materials and precision engineering for high-RPM and high-load applications. Product Features: Advanced Materials – Manufactured from tri-metal or bi-metal alloys, these bearings provide superior wear resistance and strength under extreme conditions. Optimized Oil Clearance – Precision tolerances ensure proper oil flow and lubrication for maximum engine performance. Proven Durability – Built for motorsport, high-performance street use, and endurance applications, ensuring long-lasting reliability. OEM Replacement – Designed to fit factory specifications for an easy, direct installation with no modifications needed. Prevention of Bearing Failure – Helps mitigate the risk of premature rod bearing failure, a common issue in the S54 engine. For optimal performance, we recommend pairing these bearings with ARP rod bolts and an upgraded oil pump to further enhance engine protection and longevity.
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JE Piston - Corporate Logo
T#:33679697
Part#: 297174S
In Stock at Vendor
$ 251.99 USD
Free Shipping on orders $49 and up
JE Pistons BMW S52B32 USA Piston – 12.5:1 Compression 86.50 mm Bore – 1.220 in. CH, -5.00 CC is an advanced piston engineered for high-performance BMW engines. Specifically designed for the S52B32 engine, this piston delivers exceptional compression and power, making it a must-have for performance enthusiasts. Available at Turner Motorsport, this USA-made piston is perfect for drivers who demand both reliability and peak engine performance.
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Supertech - Corporate Logo
T#:51426477
Part#: SPRKH100DRBMST
In Stock at Vendor
New Item
$ 833.99 USD
Free Shipping on orders $49 and up
Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.
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JE Piston - Corporate Logo
T#:33646285
Part#: 297115S
In Stock at Vendor
$ 251.99 USD
Free Shipping on orders $49 and up
Featuring a 9:1 compression ratio, these pistons are lightweight and robust, reducing reciprocating weight for quicker engine response. Detail: 87.00 mm Bore – 1.271 in. CH, -29.30 CC

JE Piston - Corporate Logo
T#:33679701
Part#: 297175S
In Stock at Vendor
$ 251.99 USD
Free Shipping on orders $49 and up
p>JE Pistons BMW S52B32 USA Piston - 12.5:1 Compression – 87.00 mm Bore – 1.220 in. CH, -5.50 CC is a top-tier performance upgrade for BMW enthusiasts seeking to unleash the full potential of their S52B32 engine. Designed for precision and reliability, these pistons are offered by Turner Motorsport, ensuring that every component meets the highest standards of performance.
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JE Piston - Corporate Logo
T#:33646290
Part#: 397118S
In Stock at Vendor
$ 251.99 USD
Free Shipping on orders $49 and up
Unlock your BMW S54's potential with the JE S54B32 piston—crafted from lightweight forged aluminum for ultimate strength and performance. Detail: 11.5:1 Compression - 87.50 mm Bore – 1.271 in. CH, -13.80 CC
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JE Piston - Corporate Logo
T#:33646296
Part#: 297120S
In Stock at Vendor
$ 251.99 USD
Free Shipping on orders $49 and up
The JE Piston's precise engineering ensures optimal fit and reliability, making them a top choice for BMW enthusiasts seeking improved engine performance. Dimensions 87.50 mm Bore – 1.271 in. CH, -9.20 CC
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JE Piston - Corporate Logo
T#:33646305
Part#: 297171S
In Stock at Vendor
$ 251.99 USD
Free Shipping on orders $49 and up

The BMW JE Piston S54B32 9:1 Piston Single 87.00mm is a premium performance upgrade designed for BMW enthusiasts looking to enhance engine durability and output. Specifically crafted for the BMW S54 engine, this piston ensures optimal compression and power, providing the necessary strength to handle high-performance driving conditions. Available through Turner Motorsport, this piston is engineered to meet the demands of both street and track driving, offering exceptional reliability.

The precision-crafted piston ensures a perfect fit, allowing for improved combustion efficiency and overall engine performance. It's the ideal choice for drivers seeking to boost their BMW’s power and longevity.

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Schrick - Corporate Logo
T#:338217
Part#: TMS201495
Ships on Jan 18, 2027
Starting at $ 3,804.99 USD
Free Shipping
Starting at $ 3,804.99 USD
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E46 M3 Schrick 280 Degree Exhaust Camshaft with 14.0mm valve lift. This is only for use in professionally-built E46 M3 race engines. Schrick has developed this ultra-aggressive S54 race cam with 280-deg duration and 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends it be used with special custom pistons with deep valve reliefs. We strongly recommend this be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with this cam:
Schrick valve springs
Schrick rocker arms
Schrick upper and lower retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe
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VAC Motorsports - Corporate Logo
T#:26038609
Part#: JE-FPS-M54
Ships on Oct 15, 2026
$ 1,399.99 USD
Free Shipping on orders $49 and up
Mahle Motorsports - Corporate Logo
T#:2958768
Part#: 930286145T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
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$ 1,271.99 USD
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Forged, 2618. Get the performance and reliability your S54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Schrick - Corporate Logo
T#:340424
Part#: TMS200186
Back Ordered
Starting at $ 3,261.73 USD
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Starting at $ 3,261.73 USD
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E46 M3 Schrick high-performance racing camshaft set - 288 degree intake and 280 degree exhaust. These camshafts are for use in professionally-built E46 M3 race engines. Schrick has developed these ultra-aggressive S54 race cams with 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends them be used with special custom pistons with deep valve reliefs. We strongly recommend these be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with these cams:
Schrick valve springs
Schrick rocker arms
Schrick upper (titanium) and lower (steel) retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe
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Schrick - Corporate Logo
T#:340425
Part#: TMS200183
Ships on Jan 18, 2027
Starting at $ 4,865.48 USD
Free Shipping
Starting at $ 4,865.48 USD
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E46 M3 Schrick high-performance racing camshaft set - 304 degree intake and 296 degree exhaust. These camshafts are for use in professionally-built E46 M3 race engines. Schrick has developed these ultra-aggressive S54 race cams with 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends them be used with no VAN0S and with special custom pistons with deep valve reliefs. We strongly recommend these be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with these cams:
Schrick valve springs
New Schrick or BMW rocker arms
Schrick upper (titanium) and lower (steel) retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe
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Schrick - Corporate Logo
T#:338221
Part#: TMS201493
Ships on Jan 18, 2027
Starting at $ 2,432.99 USD
Free Shipping
Starting at $ 2,432.99 USD
Free Shipping
E46 M3 Schrick 304 Degree Intake Camshaft with 14.0mm valve lift. This is only for use in professionally-built E46 M3 race engines. Schrick has developed this ultra-aggressive S54 race cam with 304-deg duration and 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends it be used with no VAN0S or with special custom pistons with deep valve reliefs. We strongly recommend this be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with this cam:
Schrick valve springs
Schrick rocker arms
Schrick upper and lower retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe
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Schrick - Corporate Logo
T#:338223
Part#: TMS201494
Back Ordered
Starting at $ 829.00 USD
Free Shipping
Starting at $ 829.00 USD
Free Shipping
E46 M3 Schrick 288 Degree Intake Camshaft with 14.0mm valve lift. This is only for use in professionally-built E46 M3 race engines. Schrick has developed this ultra-aggressive S54 race cam with 288-deg duration and 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends it be used with special custom pistons with deep valve reliefs. We strongly recommend this be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with this cam:
Schrick valve springs
Schrick rocker arms
Schrick upper and lower retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe
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Schrick - Corporate Logo
T#:200186
Part#: TMS200186
Back Ordered
$ 3,261.73 USD
Free Shipping
$ 3,261.73 USD
Free Shipping
NOW LOCATED UNDER T#340424
Schrick - Corporate Logo
T#:338220
Part#: 0415E1040-00
Ships on Jan 18, 2027
Starting at $ 829.00 USD
Free Shipping
Starting at $ 829.00 USD
Free Shipping
E46 M3 Schrick 304 Degree Exhaust Camshaft with 12.5mm lift. This cam is much more agressive than the "standard" Schrick intake cams. A new rocker arm is required (Schrick or new BMW part #11337833259).

BMW Schrick Technical Specs Schrick Technical Information / Specs

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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Schrick - Corporate Logo
T#:338219
Part#: TMS201492
Ships on Jan 18, 2027
$ 7,065.99

This product was last offered at the strikethrough price on
07-08-2026

Starting at $ 5,877.86 USD
Free Shipping
Starting at $ 5,877.86 USD
Free Shipping
E46 M3 Schrick 296 Degree Exhaust Camshaft with 14.0mm valve lift. This is only for use in professionally-built E46 M3 race engines. Schrick has developed this ultra-aggressive S54 race cam with 296-deg duration and 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends it be used with no VAN0S or with special custom pistons with deep valve reliefs. We strongly recommend this be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with this cam:
Schrick valve springs
Schrick rocker arms
Schrick upper and lower retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe
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5150 Autosport - Corporate Logo
T#:26204927
Part#: CAR-CRS-S54-XT
Back Ordered
$ 2,299.99 USD
Free Shipping on orders $49 and up
The 5150 AutoSport Pro-Xtreme Connecting Rods, made by CP-Carrillo, are designed to handle extreme horsepower and high RPM applications for BMW S54 engines with 139 mm Rods. Constructed from high-strength, aircraft-grade steel, these connecting rods are engineered to withstand the forces generated by high-powered engines. The Pro-Xtreme design is specifically tailored to handle up to 2000 horsepower, making these rods suitable for high-performance turbo/drag racing or street/strip applications. They are also designed to handle high engine speeds of up to 9500 RPM, which is necessary for achieving maximum power output. Each connecting rod is precisely fabricated to meet the demands of high-performance engines using advanced manufacturing techniques such as computer-aided design (CAD) and finite element analysis (FEA). The Pro-Xtreme Connecting Rods are designed to be durable, reliable, and capable of handling the extreme stresses and forces generated by high-horsepower and high-rpm engines.
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JE Piston - Corporate Logo
T#:33646293
Part#: 297119S
Back Ordered
$ 299.99 USD
Free Shipping on orders $49 and up
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 Piston - Corporate Logo
T#:27171928
Part#: 297120
Back Ordered
$ 1,324.99 USD
Free Shipping on orders $49 and up
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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5150 Autosport - Corporate Logo
T#:26171645
Part#: CP-FPS-S54-XT
Back Ordered
Starting at $ 2,268.98 USD
Free Shipping on orders $49 and up
Starting at $ 2,268.98 USD
Free Shipping on orders $49 and up
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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CP-Carrillo Forged Piston Set - M54B28 Std. Size
For Vehicles With M54B25 Engine Only
5150 Autosport - Corporate Logo
T#:26071892
Part#: M54B25-CPP-84
Back Ordered
Starting at $ 2,206.98 USD
Free Shipping on orders $49 and up
Starting at $ 2,206.98 USD
Free Shipping on orders $49 and up
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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JE Piston - Corporate Logo
T#:33646299
Part#: 297170S
Back Ordered
$ 299.99 USD
Free Shipping on orders $49 and up

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

  • Increases compression ratio for better power output
  • Lightweight construction enhances overall engine performance
  • Designed for durability and longevity in high-stress environments
  • Ensures a perfect fit for the BMW S52B32 engine
  • Ideal for both competitive racing and everyday driving scenarios
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JE Piston - Corporate Logo
T#:33679694
Part#: 297173S
Back Ordered
$ 299.99 USD
Free Shipping on orders $49 and up
The JE Pistons BMW S52B32 USA Piston – Compression 11.5:1 - 87.00 mm Bore – 1.220 in. CH, -9.90 CC is a premium piston upgrade designed for BMW performance enthusiasts who seek to improve their engine’s power and reliability. Engineered with precision, this piston offers an ideal balance of strength and lightweight construction, ensuring optimal performance under high stress. Available through Turner Motorsport, this piston is specifically tailored for BMW S52 engines, providing a seamless fit for enhanced engine efficiency.
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JE Piston - Corporate Logo
T#:33646279
Part#: 297116S
Back Ordered
$ 299.99 USD
Free Shipping on orders $49 and up
JE Pistons are premium forged components tailored for racing and high-performance engines. Detail: 87.50 mm Bore – 1.271 in. CH, -30.00 CC