Bremmen Parts BMW Engine Parts for BMW Z4 M Roadster S54 (2003-2008)

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Oil Level Indicator - 12617607910
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T#:36913378
Part#: 12617607910
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05-03-2026

$ 130.89 USD
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The engine oil level sensor tracks the oil level in the engine's oil pan, sending real-time data to the ECU (Engine Control Unit). This vital information ensures the engine has the right amount of oil for proper lubrication. Commonly featured in modern vehicles, the oil level sensor acts as an essential safeguard against low oil levels, helping prevent potential engine damage.
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Camshaft Position Sensor - E46 M3, Z4M, Z3M S54
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T#:36913379
Part#: 12147539171
Ships on Aug 10, 2026
Sale - Save 20% $ 89.99

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$ 71.80 USD
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$ 71.80 USD
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The camshaft position sensor is essential for assisting the engine DME by monitoring the camshaft's position. The data from this sensor is key to optimizing ignition timing and ensuring smooth engine performance.

Often referred to as the CMP sensor, this component is crucial for the overall functionality of the powertrain. A failing camshaft position sensor can cause a range of issues, including engine stumbling, hesitation during acceleration, power loss, and even starting difficulties or complete failure to start.

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Mechanical A/C Belt Tensioner Assembly
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T#:26305100
Part#: 11281433571
In Stock
Sale - Save 21% $ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 47.32 USD
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$ 59.99

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$ 47.32 USD
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Fuel Tank Breather Valve - 13907831770
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T#:37655984
Part#: 13907831770
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Sale - Save 20% $ 80.99

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05-03-2026

$ 64.46 USD
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$ 80.99

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$ 64.46 USD
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Over time, valves can fail, often getting stuck in one position and causing the engine to run poorly. This Fuel Tank Breather Valve is a simple replacement that resolves rough idling and helps clear engine codes, restoring smooth performance.
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Leak Detection Pump - Priced Each
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T#:35121140
Part#: 16137193479
Ships on Oct 6, 2026
Sale - Save 18% $ 65.99

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05-03-2026

$ 54.39 USD
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$ 65.99

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$ 54.39 USD
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Rubber O-Ring - Bremmen Parts
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T#:22525960
Part#: 11531435808
In Stock
Sale - Save 20% $ 2.03

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05-03-2026

$ 1.62 USD
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$ 2.03

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$ 1.62 USD
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Useful for fixing leaks on air conditioning, fuel, and vacuum systems. Measures 20x3.

Idler Pulley
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T#:30629656
Part#: 11287841228
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$ 15.50 USD
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$ 19.99

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$ 15.50 USD
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Oil Level Indicator with hardware
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T#:52551471
Part#: 12617607910KT1
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New Item
Sale - Save 15% $ 159.99

This product was last offered at the strikethrough price on
05-03-2026

$ 135.99 USD
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$ 159.99

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$ 135.99 USD
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Reads oil level in oil pan, includes new hardware and seal

Mini Screw Clamp
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T#:367185
Part#: 21014
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This product was last offered at the strikethrough price on
05-02-2026

$ 2.96 USD
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05-02-2026

$ 2.96 USD
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Ideal for low pressure hoses. This hose clamp could be used on many vehicles for many different purposes.

Zinc-Plated Steel M8 Washer - Priced Each
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T#:28171519
Part#: 91166A270-100
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01-03-2026

$ 0.81 USD
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$ 2.99

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$ 0.81 USD
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For M8 Screw Size, 8.4 mm ID, 16 mm OD
Locking Hex Nut - M6 - Priced Each
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T#:22558959
Part#: 94235A080
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$ 1.53 USD
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$ 1.53 USD
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Hydraulic Alternator Belt Tensioner Roller - 11281748131
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T#:30629659
Part#: 11281748131
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$ 15.29 USD
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This pulley is mounted along with the hydraulic belt tensioner but can be replaced on its own. It is used for the main drive belt on the M50-M54 family engines (M50, M50TU, M52, S52, M52TU, M54, M56, and S54 engines). This is the same belt that covers the water pump/alternator/power steering systems. Replacement is a very easy procedure (requires fan removal) and will have your engine purring in no time. Belt replacement is strongly recommended at the same time. If you have a mechanical belt tensioner, the pulley can only be replaced with a new tensioner.

This high-quality replacement from Bremmen Parts is designed for exact fitment on your BMW. Whether you're looking to complete much-needed preventative maintenance, or replacing a failed roller, choose this component from Bremmen Parts for a lasting repair.

If you need the hydraulic belt tensioner, click here.

This item is 70mm Diameter. Please check the diameter before ordering.

This tensioner pulley fits the following BMWs: 1991-1995 E34 525i (M50 engine) 1992-1999 E36 325i, 325is, 328i, 328is, 323is 1995-1999 E36 M3 (M3 3.0 & M3 3.2 liter) 1997-2003 E39 525i, 528i, 530i - Only for Hydraulic Tensioner 1999-2000 E46 323i, 323Ci, 328i, 328Ci - Only for Hydraulic Tensioner 2001-2005 E46 325i, 325Ci, 325xi, 330i, 330Ci, 330xi - Only for Hydraulic Tensioner 2001-2006 E46 M3 coupe & convertible - Only for Hydraulic Tensioner 2000-2006 X5 3.0 liter (E53 chassis) 2004 E60 525i, 530i (M54 engine) 1997-2002 Z3 & MZ3 2.5, 2.8, 3.0, M Roadster, M Coupe 2003-2009 Z4 M Coupe and Roadster

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Bremmen Parts Fuel Injector O-ring - E38, E39, E46, E53, E60, E63, E6...
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T#:1196079
Part#: 13641437476
In Stock
$ 4.99

This product was last offered at the strikethrough price on
05-03-2026

$ 2.99 USD
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$ 4.99

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$ 2.99 USD
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Fits between injector and fuel rail
Hydraulic Alternator Belt Tensioner Assembly
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Bremmen Parts - Corporate Logo
T#:55030822
Part#: 11287838797
Ships on Oct 23, 2026
New Item
$ 59.99 USD
$ 59.99 USD
02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm) ...
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Bremmen Parts - Corporate Logo
T#:47439371
Part#: 02SB1815
Ships on Feb 1, 2027
Sale - Save 39% $ 3.99

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$ 2.44 USD
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Easily add an oxygen sensor to your custom exhaust setup with this universal O2 sensor bung. Designed for simple weld-on installation, it allows you to place your sensor exactly where you need it—perfect for custom builds, exhaust modifications, or performance tuning projects.

Features:

CNC-cut from T304 Stainless Steel for corrosion resistance
Threaded for M18x1.5mm RH oxygen sensors

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