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Bavarian Autosport BMW Engine Parts for BMW E90 M3 S65 4.0L

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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Aluminum Valve Cover Set - E9X M3 S65 4.0L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:39835971

Part#: 11127848154KT

In Stock

Sale - Save 15% $ 907.99

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

$ 771.79 USD

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Sale - Save 15%

$ 907.99

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

$ 771.79 USD

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The factory magnesium valve covers on the S65 engine are known for developing micro-porosity, corrosion, and persistent oil leaks over time. This material is highly susceptible to oxidation, leading to unsightly surface imperfections, weakened gasket channels, and sealing issues that a simple gasket replacement won't fix.

Upgrade to this high-strength aluminum valve cover set, engineered as a direct-fit replacement for your aging OEM covers. Unlike magnesium, aircraft-grade aluminum offers superior durability, enhanced heat resistance, and complete immunity to the corrosion issues that plague factory covers. Whether you're refreshing a high-mileage M3 or seeking long-term reliability, this upgrade ensures a leak-free, worry-free solution for your S65.

Features:

Eliminates the common porosity and corrosion issues found in factory magnesium covers.

Helps maintain optimal engine temperatures and enhances long-term reliability.

Designed for an OEM-like installation without modifications.

Reduces the risk of oil leaks, ensuring a proper seal.

Resistant to oxidation and chemical exposure for a long-lasting clean look.

Replaces OEM Part Numbers: 11127848153 & 11127848154

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E9X M3 Right Valve Cover

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:19560852

Part#: 11127848153

In Stock

Sale - Save 15% $ 453.99

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

$ 385.89 USD

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Sale - Save 15%

$ 453.99

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

$ 385.89 USD

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Alternator - 180amp

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:26438185

Part#: 12317837981

In Stock

Sale - Save 15% $ 304.99

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

$ 259.24 USD

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Sale - Save 15%

$ 304.99

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

$ 259.24 USD

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E9X M3 Left Valve Cover

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:19560853

Part#: 11127848154

In Stock

Sale - Save 15% $ 453.99

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

$ 385.89 USD

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Qty

Sale - Save 15%

$ 453.99

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

$ 385.89 USD

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Bav Auto Low Fuel Pressure Sensor - Multiple BMWs

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639834

Part#: 13537614317

Back Ordered

Sale - Save 20% $ 52.99

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

$ 42.39 USD

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Sale - Save 20%

$ 52.99

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

$ 42.39 USD

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This low-pressure fuel sensor is commonly a cause of an "Increased Emissions" warning on the idrive and for check engine (SES) lights on BMW's with the N54 6 cylinder turbo engine or the S65 V8 engine in the M3. It will also fit a limited number of cars with the N55 engine. This sensor can be traced to a number of drivability issues, including cold start running problems, misfires, stumbling, hesitations, and overall rough running. You will likely have a code for the misfires, rich condition, or for the sensor itself. In some cases, the combination of codes can bring about a limp mode. Replacing this sensor is an easy and inexpensive first step if you're having any of these issues. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bav Auto Crankshaft Position Sensor - Multiple BMWs

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639826

Part#: 13627525015

Special Order: No Guaranteed ETA

$ 67.99 USD

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$ 67.99 USD

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This crankshaft position sensor provides the ECU with the engine speed signal. It is mounted in either the engine block or the bell housing of the transmission on most cars. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bav Auto Intake Air Temperature Sensor - BMW E9X M3 S65

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639824

Part#: 13627792203

In Stock

$ 24.99

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

$ 19.99 USD

Limited Qty Sale

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Qty

$ 24.99

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

$ 19.99 USD

Limited Qty Sale

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This sensor provides your BMW's control unit with intake temperature readings in order to run optimally in any condition. If this sensor has failed, your BMW may be suffering from more performance loss than you realize. Replace your IAT sensor to ensure proper temperature readings and restore lost performance! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bavarian Autosport BMW Engine Parts for BMW E90 M3 S65 4.0L

Sub-Categories

Aluminum Valve Cover Set - E9X M3 S65 4.0L

E9X M3 Right Valve Cover

Alternator - 180amp

E9X M3 Left Valve Cover

Bav Auto Low Fuel Pressure Sensor - Multiple BMWs

Bav Auto Crankshaft Position Sensor - Multiple BMWs

Bav Auto Intake Air Temperature Sensor - BMW E9X M3 S65

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