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BMW Electrical Sensors, Switches, & Relays

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 Pulse Sensor

5X Entries Into Our F80 M3 Sweepstakes

T#:55030835

Part#: 3148100018

In Stock

$ 15.99 USD

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$ 15.99 USD

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Keep your ultimate driving machine running the way it was engineered to with this reliable replacement.

Crankshaft Position Sensor

5X Entries Into Our F80 M3 Sweepstakes

T#:55030834

Part#: 3148100013

In Stock

$ 36.99 USD

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$ 36.99 USD

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This Meyle Crankshaft Position Sensor is the perfect solution for restoring the critical engine speed data your ECU relies on.

Knock Sensor

T#:54388475

Part#: 13627636937

In Stock

$ 29.99 USD

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$ 29.99 USD

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Keep your ignition timing razor-sharp and your engine safe from destructive detonation. This replacement Knock Sensor acts as your engine's first line of defense, constantly listening for pre-ignition "pinging" or knocking.

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Eccentric Shaft Sensor Seal

T#:57580051

Part#: 11127559699

Ships in 3 Business Days

$ 18.99 USD

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$ 18.99 USD

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Maintain peak driving dynamics and uncompromised chassis precision with this original-spec replacement from Meistersatz.

Knock Sensor

5X Entries Into Our F80 M3 Sweepstakes

T#:55353615

Part#: 12141716055

Ships on Nov 2, 2026

$ 28.99 USD

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$ 28.99 USD

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This Meyle replacement knock sensor is the perfect solution for keeping your high-performance engine safe and running at its absolute peak.

Meyle Exhaust Camshaft Position Sensor - BMW S54 S62

5X Entries Into Our F80 M3 Sweepstakes

T#:55497462

Part#: 3148000038

Ships in 9 Business Days

$ 27.99

This product was last offered at the strikethrough price on
09-14-2026

$ 26.99 USD

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$ 26.99 USD

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Don't let a failing camshaft position sensor rob your vehicle of power or cut your track day short. This Meyle replacement camshaft sensor is built to deliver fast, highly accurate data to the ECU, preventing the performance drops, sluggish throttle response, and rough idling caused by worn-out factory electronics. Engineered to withstand high underhood heat and intense vibrations, it keeps your ignition timing and fuel delivery tightly synced, whether you are daily driving or pushing through high-RPM pulls.

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Remanufactured Alternator

T#:57267768

Part#: 12317616126

Special Order: No Guaranteed ETA

$ 571.99 USD

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$ 571.99 USD

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Keep your BMW's vital electronics powered and your engine running at peak efficiency with a premium remanufactured alternator from Bosch.

AL41X Remanufactured Alternator

T#:57231540

Part#: 12311466084

Special Order: No Guaranteed ETA

$ 286.99 USD

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$ 286.99 USD

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Ensure your BMW or European vehicle maintains uninterrupted power under demanding driving conditions with this premium remanufactured alternator by Bosch.

Starter

T#:57267806

Part#: 12418625995

Special Order: No Guaranteed ETA

$ 463.99 USD

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$ 463.99 USD

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Bosch starter units deliver the high-torque cranking performance required to reliably start modern high-compression BMW engines under all thermal conditions.

Starter Solenoid

T#:57231530

Part#: 12411427080

Special Order: No Guaranteed ETA

$ 78.99 USD

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$ 78.99 USD

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When you are at the track or gearing up for a weekend backroad drive, the last thing you need is a sluggish starter holding your BMW back.

Remanufactured Alternator - 12V - 170A

T#:57267766

Part#: 12317605478

Special Order: No Guaranteed ETA

$ 499.99 USD

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$ 499.99 USD

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Maintain peak battery performance and protect your vehicle's complex electrical architecture with a motorsport-tested, factory-grade charging replacement.

Starter - Remanufactured

T#:57267807

Part#: 12418621839

Special Order: No Guaranteed ETA

$ 342.99 USD

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$ 342.99 USD

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Starter

T#:57304035

Part#: SR3295N

Special Order: No Guaranteed ETA

$ 441.99 USD

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$ 441.99 USD

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This new starter delivers crisp power and rapid engine speed recovery, avoiding the typical voltage drop issues associated with worn original units.

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.

Remanufactured Alternator

T#:57267767

Part#: 12317561004

Special Order: No Guaranteed ETA

$ 695.99 USD

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$ 695.99 USD

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This Bosch remanufactured alternator delivers the rock-solid current required to keep your ignition, fuel management, and chassis electronics operating at peak efficiency under demanding conditions.

Remanufactured Alternator - 12V - 150 A

T#:57267763

Part#: AL0757X

Special Order: No Guaranteed ETA

$ 430.99 USD

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$ 430.99 USD

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This high-output Bosch remanufactured alternator ensures your ignition system and performance electronics receive clean, steady amperage under high-demand driving conditions.

Meyle Crankshaft Pulse Sensor - BMW EXX, FXX

5X Entries Into Our F80 M3 Sweepstakes

T#:52762518

Part#: 314810014

Ships on Nov 2, 2026

$ 19.99 USD

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$ 19.99 USD

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Revitalize your vehicle’s performance and reliability with the MEYLE Crankshaft Pulse Sensor.

Intake air temperature sensor

5X Entries Into Our F80 M3 Sweepstakes

T#:58307544

Part#: 13628519445

Ships in 5 Business Days

$ 25.99 USD

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$ 25.99 USD

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Meyle Camshaft Position Sensor - BMW i3

5X Entries Into Our F80 M3 Sweepstakes

T#:52762526

Part#: 3148100005

Ships on Nov 2, 2026

$ 30.99 USD

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$ 30.99 USD

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The MEYLE Camshaft Position Sensor restores the "timing" of your engine, ensuring your fuel is injected at the perfect millisecond.

MEYLE Crank Position Sensor - BMW E46, E90

5X Entries Into Our F80 M3 Sweepstakes

T#:52621846

Part#: MPS0126

Ships on Nov 2, 2026

$ 29.99 USD

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$ 29.99 USD

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The Meyle MPS0126 Crankshaft Position Sensor is a robust replacement for aging or failing factory sensors that often trigger P0335 or P0339 trouble codes.

Meyle Crank Position Sensor - E36, E34

5X Entries Into Our F80 M3 Sweepstakes

T#:55497425

Part#: 3148998003

Back Ordered

$ 26.99

This product was last offered at the strikethrough price on
08-26-2026

$ 25.99 USD

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$ 25.99 USD

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Don't let a basic sensor keep your E36 or E34 off the tarmac—swap in this high-quality Meyle unit and drive with confidence.

Remanufactured Starter

T#:57376671

Part#: SR71XKT

Back Ordered

$ 342.99

This product was last offered at the strikethrough price on
08-23-2026

$ 212.99 USD

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$ 212.99 USD

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The Bosch SR71X Remanufactured Starter delivers the precise, high torque cranking performance needed to keep your vehicle starting cleanly on the street or at the track

BMW Alternator 150 Amp - Bosch AL0839X

T#:57376634

Part#: AL0839XKT

Back Ordered

$ 476.86

This product was last offered at the strikethrough price on
08-23-2026

$ 422.86 USD

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$ 422.86 USD

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Protect your BMW's electrical performance on the road and track with the Bosch AL0839X remanufactured alternator. Designed to handle high demand electrical loads under spirited driving conditions

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