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BMW Electrical Sensors, Switches, & Relays for BMW E90 M3 S65 4.0L

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Electrical gremlins can be very frustrating. Luckily your BMW's electrical system is better than most, even if it's 25 years old. Here you will find electrical relays, sensors, switches, and modules for the engine, camshaft, and crankshaft. Our parts are OEM, Genuine BMW, or approved aftermarket brands that we have an excellent track record with. There is no middle ground with electrical parts - it either works perfectly or not. And there's nothing more frustrating than a new part that fails right out of the box. So it's important to choose quality replacement parts over a cheap but faulty piece.

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Crankshaft Position Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:37858379

Part#: 13627839138

In Stock

$ 22.43 USD

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$ 22.43 USD

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The flywheel sensor monitors the rotational speed of the flywheel and transmits this data to the ECU/DME, which uses it to optimize engine performance. A faulty flywheel sensor can lead to rough running or prevent the engine from starting altogether.

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URO Positive Cable Battery Connection Pole

2X Entries Into Our F80 M3 Sweepstakes

T#:42436713

Part#: 61129217031

In Stock

$ 130.99 USD

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$ 130.99 USD

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If your BMW has been in an accident and the Battery Safety Terminal (BST) has been triggered, you'll need a new positive battery cable connection to restore power and get the vehicle running again.

URO Power Distribution Box With Fuse - BMW E8X 1

2X Entries Into Our F80 M3 Sweepstakes

T#:49822552

Part#: 61146971370

In Stock

$ 91.99 USD

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$ 91.99 USD

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Ensures the appropriate amount of power is sent to electrical vehicle components.

Crankshaft Position Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:35863159

Part#: 13627525015

In Stock

$ 28.99 USD

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$ 28.99 USD

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Having a crank but no starting issue? This sensor is often the culprit

OEM Bosch Remanufactured Alternator - AL9454X - BMW E9X M3 S65 ...

T#:639734

Part#: 12317837981BKT

Ships in 1 Business Day

$ 526.99

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

$ 513.99 USD

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$ 513.99 USD

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*Price includes a refundable $75 Core Charge* The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. 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! Bosch Part Numbers: AL9454X, 0986UR6290 Replaces the following BMW part numbers: 12317837981, 12317838656

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Fluid Level Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:369510

Part#: 17137524812

In Stock

$ 10.59 USD

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$ 10.59 USD

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This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level

Blower Motor Temperature Sensor - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:403094

Part#: 64116930015

Ships in 1 Business Day

$ 15.99 USD

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$ 15.99 USD

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Part of the HVAC system

Temperature Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:37892090

Part#: 13621433076

In Stock

$ 10.34 USD

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$ 10.34 USD

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Temperature sensor for monitoring coolant and oil

Electrical Connector - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:367145

Part#: 61132359999

In Stock

$ 18.99 USD

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$ 18.99 USD

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2 pin used in many locations on late model BMWs

Outdoor Temperature Sensor / Probe

2X Entries Into Our F80 M3 Sweepstakes

T#:373239

Part#: 65816905133

In Stock

$ 13.99 USD

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$ 13.99 USD

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Common fix for incorrect OBC temperature readings

URO Battery Hold Down Clamp - BMW E92 335xi

2X Entries Into Our F80 M3 Sweepstakes

T#:37925905

Part#: 61217566618

Ships in 1 Business Day

$ 12.99 USD

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$ 12.99 USD

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URO Battery Hold Down Clamp - BMW E92 335xi

URO Battery Hold Down Clamp - BMW E92 335xi is a premium solution for repairing your damaged or broken factory battery hold down. This new clamp is designed to restore the proper positioning and securement of your vehicle's battery, ensuring it remains firmly in place during operation. Manufactured to meet OE specifications, it guarantees a perfect fit and easy installation. Made from high-quality materials, the URO Battery Hold Down Clamp is engineered to withstand harsh operating conditions, including intense vehicle heat and corrosive battery fumes, providing long-lasting durability and reliability.

Key Benefits:

Direct-fit OE replacement ensures easy installation and secure battery positioning
High-quality materials resist heat and corrosive battery fumes for enhanced durability
Restores battery hold down function, preventing battery movement during operation
Built to withstand harsh conditions for long-lasting reliability

With the URO Battery Hold Down Clamp - BMW E92 335xi, you can ensure your battery is securely held in place, contributing to the overall reliability and safety of your vehicle.

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Bushing Contact With Wire Lead - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:14783536

Part#: 61130005199

In Stock

$ 3.99 USD

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$ 3.99 USD

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15A Fuse - Priced Each

T#:375327

Part#: 61131372626

In Stock at Vendor

$ 2.03 USD

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$ 2.03 USD

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Starter - Remanufactured

T#:57304037

Part#: 12417843530

Special Order: No Guaranteed ETA

$ 412.99 USD

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$ 412.99 USD

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Ensure your high-performance engine cranks reliably every time with an OE-quality starter motor from Bosch.

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