BMW Internal Engine Parts for BMW Z4 M Roadster S54 (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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S54 Valve Adjustment Shim Set - With Tools
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T#:401664
Part#: VSK4KT2
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Proper valve lash adjustment is critical for longevity and performance. If your S54 is due for valve adjustment maintenance you can do it yourself with this kit, saving hundreds of dollars in labor charges. 

Includes

  • Shim set 
  • Installation tool #83300493743
  • 16 Blade Feeler gauge set 

BMW recommends S54 valve inspection and adjustment every 30k miles.

*Click here for valve adjustment instructions*

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E46 M3 / MZ4 Rod Bearing Overhaul Kit
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T#:392550
Part#: S54RBPDK
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Replacing the rod bearings requires mechanical knowledge and skill, a clean workspace, and several specialist tools. Our preferred procedure is to leave the engine in the car but remove the front subframe. The engine must be supported from above with an engine brace. Removing the front subframe involves disconnecting the control arms and steering rack and steering column. The oil pan can then be removed and you can access the connecting rods and bearings. Replacing the rod bearings themselves is straightforward but patience and forethought will be extremely helpful. In addition to analyzing the severity of the rod bearing wear, the crankshaft must also be inspected closely for damage. Rod bearings that have been severely worn may have damaged the crankshaft (requiring replacement or machining).
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S54 Valve Adjustment Kit w/ Wiseco Shims - E46 M3, Z3M, Z4M
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T#:582210
Part#: S54WVALVESHIMKT
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S54 Valve Adjustment Kit - With gaskets
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T#:582218
Part#: 83300493743
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BMW recommends valve adjustments every 30k miles on your S54-equipped BMW. We have all the parts you will need to do the job in one discounted package for your BMW E46 M3, Z3, or Z4! Kit includes: 11127832034 x 1 - Valve Cover Gasket 11127831271 x 6 - Spark Plug Hole Gasket 11121437395 x 2 - Valve Cover Seal Washer Grommet 11127830972 x 13 - Valve Cover Nut Grommet VSK4 Wiseco x 1 - Valve Shim Set 83300493743 x 1 - Valve Shim Tool *Click here for valve adjustment instructions* This item fits the following BMWs: 2001-2006 E46 BMW M3, M3 Convertible2001-2002 Z3 BMW M Roadster M Coupe2006-2008 Z4 BMW Z4 M Roadster M Coupe
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WPC Performance Rod Bearing Replacement Kit - Late S54
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T#:15710784
Part#: 11137834886-KT
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The S54 engine has a known history of rod bearing failure, and if your engine is higher mileage, don't let this catastrophic failure happen to you. Replace your rod bearings and prevent a spun bearing which can trash your crankshaft. WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both. Kit includes Upper and lower WPC treated rod bearings for extra protection against wear Hardware Oil filter Castrol TWS Edge Professional Oil pan gasket Oil pan cover gasket RedLine assembly lube Connecting rod bolts
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WPC Performance Rod Bearing Replacement Kit - Late S54 - DRY ...
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T#:36811826
Part#: 11137834886JRKT
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S54 Camshaft Installation Kit
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T#:599963
Part#: 1131783634KT1
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Includes needed gaskets and hardware for installing a new camshaft set.
S54 Valve Adjustment Kit - E46 M3, Z3M, Z4M
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T#:401675
Part#: S54VADJKT1
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BMW recommends valve adjustment every 30,000 miles on the S54 engine.This valve adjustment kit includes every thing needed to to a proper valve adjustment on the S54 engine. 

Kit includes

  • Wiseco valve shims
  • Elring valve cover gasket set
  • BMW Valve shim Installation tool
  • Valve shim feeler gauge set 
  • Castrol TWS Edge Professional Engine Oil - 6 Quarts
  • Mann Oil Filter Kit
  • Oil pan drain plug 

Please note the the included feeler gauge set allows you to stack feeler blades to get a more precise adjustment 

*Click here for valve adjustment instructions*

This item fits the following BMWs: 
2001-2006 E46 BMW M3, M3 Convertible 
2001-2002 Z3 BMW M Roadster M Coupe 
2006-2008 Z4 BMW Z4 M Roadster M Coupe 

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JE Piston BMW S54B32 11.5:1 Single Piston 86.50mm
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JE Piston - Corporate Logo
T#:33679693
Part#: 297172S
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The BMW JE Piston S54B32 11.5:1 Piston Single 86.50mm is a high-performance piston designed to optimize the power and efficiency of BMW S54 engines. With an 11.5:1 compression ratio, this piston is ideal for those seeking to push the performance limits of their vehicle. Built from top-quality materials, it offers superior durability, making it suitable for both street and track applications. Available at Turner Motorsport, this piston ensures enhanced reliability and a precise fit for BMW S54 engines.

This piston is designed to withstand the demands of high-performance driving while improving overall engine combustion and efficiency. It is an excellent choice for BMW owners looking to improve engine performance, longevity, and power output. Detail: 86.50 mm Bore – 1.220 in. CH, -9.40 CC

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JE Piston BMW S54B32 12.5:1 Single Piston 86.50mm
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JE Piston - Corporate Logo
T#:33679697
Part#: 297174S
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$ 251.99 USD
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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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JE Piston BMW S54B32 11:5 Single Piston 87.50mm
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JE Piston - Corporate Logo
T#:33646290
Part#: 397118S
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$ 251.99 USD
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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 BMW S54B32 12.5:1 - Single Piston 87.50mm
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JE Piston - Corporate Logo
T#:33646296
Part#: 297120S
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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 BMW S54B32 9:1 Piston Single 87.00mm
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JE Piston - Corporate Logo
T#:33646305
Part#: 297171S
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$ 251.99 USD
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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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JE Piston BMW S54B32 9:1 - Piston Single 87.00mm
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JE Piston - Corporate Logo
T#:33646285
Part#: 297115S
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$ 251.99 USD
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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 - BMW S54B32 12.5:1 Single Piston 87.00mm
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JE Piston - Corporate Logo
T#:33679701
Part#: 297175S
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$ 251.99 USD
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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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Camshaft Set - 288/280 12.75mm/12.50mm Lift And Vanos Hub
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T#:55353599
Part#: 1301805KT2
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The factory S54 VANOS tabs are a notorious OEM weak point turn your high-revving masterpiece into a costly paperweight.

Schrick Camshaft Set With DLC Rocker Arms - 288/280 Degree 12.5mm Lif...
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Earn 5% back in Turner Rewards on orders placed 10/28-10/31. Redeem 11/27-12/1. Terms & conditions apply
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T#:46959286
Part#: 054995LA-288KT2
Ships on Oct 21, 2026
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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 cams are a direct replacement for the stock cams and give a solid 15+ horsepower boost at the top end and great midrange torque increases too! More gains can be expected with intake and header upgrades and custom software tuning. A slightly lumpy idle is expected at cold start, but will be smooth once at operating temperature.

These Schrick cams were initially developed for the M3 CSL, but they also work well on the US and other non-CSL S54 engines. With more duration, they are a great match to high-flow headers and CSL intake plenum upgrades.

KIT INCLUDES

Schrick 280-Degree Exhaust Camshaft Schrick 288-Degree Intake Camshaft 24 Turner Motorsport DLC-Coated Performance Rocker Arms NOTE: Camshaft replacement requires multiple special tools. We offer the Genuine BMW Camshaft Press (T#171829) and a Schwaben Camshaft Alignment Tool Set (T#395239) to aid in installation.

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Schrick Camshaft Set With DLC Rocker Arms - 280/272 Degree 12.5mm Lif...
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T#:50731686
Part#: 054995LA-272KT2
Ships on Oct 21, 2026
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$ 4,392.99

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$ 4,032.89 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 a direct replacement for the stock camshafts and offer increased flow at mid and higher RPMs, thanks to 12.5mm of valve lift. Unlike 288/280 camshafts, this 280/272 set does not require upgraded valvetrain parts. The profile of these camshafts is quite close to stock CSL specs.

KIT INCLUDES

Schrick 272-Degree Exhaust Camshaft Schrick 280-Degree Intake Camshaft 24 Turner Motorsport DLC-Coated Performance Rocker Arms NOTE: Camshaft replacement requires multiple special tools. We offer the Genuine BMW Camshaft Press (T#171829) and a Schwaben Camshaft Alignment Tool Set (T#395239) to aid in 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
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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JE Piston BMW S54B32 9:1 Single Piston - 86.5mm
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T#:33646299
Part#: 297170S
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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 BMW S54B32 11.5:1 Single Piston 87.00mm
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JE Piston - Corporate Logo
T#:33679694
Part#: 297173S
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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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BMW JE Piston - S54B32 9:1 Piston Single - 87.50mm
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JE Piston - Corporate Logo
T#:33646279
Part#: 297116S
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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