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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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Battery Tender Plus Advanced Battery Charging System
Battery Tender Plus Advanced Battery Charging System
Battery Tender - Corporate Logo
T#:49892371
Part#: BTT0210128
Back Ordered
New Item
$ 69.99 USD
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$ 69.99 USD
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Intensity Lithium-ION Battery - i34RX - 11.5lbs
Intensity Lithium-ION Battery - i34RX - 11.5lbs
Braille - Corporate Logo
T#:54388454
Part#: I34RX
Ships in 6 Business Days
New Item
$ 949.99 USD
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$ 949.99 USD
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Whether you're building a dedicated track weapon or upgrading your street machine for ultimate reliability, unsprung and upper-chassis weight is the enemy of performance. Positioned high up in the engine bay or rear corners, a heavy factory battery negatively impacts your car's center of gravity.
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Vargas Coolant Level Extension Harness - BMW B48/B58/S58
Vargas Coolant Level Extension Harness - BMW B48/B58/S58
Vargas Turbo Technologies - Corporate Logo
T#:51813310
Part#: VTT-FAB-HC
Ships in 10 Business Days
New Item
$ 49.99 USD
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$ 49.99 USD
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Simplify your next fabrication project with the VTT-FAB series Coolant Extension Harness.
Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S63
Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S6...
Vargas Turbo Technologies - Corporate Logo
T#:51672717
Part#: VTT-MAP-HARNESS
Ships in 10 Business Days
New Item
$ 59.99 USD
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$ 59.99 USD
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As part of the VTT-FAB fabrication line, this extension harness is designed for builders and tuners who need flexibility.
Vargas Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW B58/S55/S58
Vargas Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW...
Vargas Turbo Technologies - Corporate Logo
T#:52129729
Part#: VTT56BSENSKIT64
Ships in 10 Business Days
New Item
$ 209.99 USD
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$ 209.99 USD
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The VTT 6-Bar MAP sensor kit provides the necessary overhead to monitor boost levels with a linear voltage scale that makes software calibration straightforward.
Vargas USB To Serial For HPFP Controller - BMW N54
Vargas USB To Serial For HPFP Controller - BMW N54
Vargas Turbo Technologies - Corporate Logo
T#:51778112
Part#: N54-USB-SERIAL-H
Ships in 10 Business Days
New Item
$ 37.99 USD
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$ 37.99 USD
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Take full control of your N54’s fueling system with the Vargas Turbo Technologies USB to Serial adapter.
Knock Sensor
Knock Sensor
Meyle - Corporate Logo
T#:55353615
Part#: 12141716055
Special Order: No Guaranteed ETA
New Item
$ 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.
Crankshaft Pulse Sensor
Crankshaft Pulse Sensor
Meyle - Corporate Logo
T#:55030835
Part#: 3148100018
Ships on Oct 30, 2026
New Item
$ 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
Crankshaft Position Sensor
Meyle - Corporate Logo
T#:55030834
Part#: 3148100013
Ships on Oct 30, 2026
New Item
$ 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.
Meyle Exhaust Camshaft Position Sensor - BMW S54 S62
Meyle Exhaust Camshaft Position Sensor - BMW S54 S62
Meyle - Corporate Logo
T#:55497462
Part#: 3148000038
Ships on Nov 12, 2026
New Item
$ 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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Meyle Crankshaft Pulse Sensor - BMW EXX, FXX
Meyle Crankshaft Pulse Sensor - BMW EXX, FXX
Meyle - Corporate Logo
T#:52762518
Part#: 314810014
Special Order: No Guaranteed ETA
New Item
$ 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.
Meyle Camshaft Position Sensor - BMW i3
Meyle Camshaft Position Sensor - BMW i3
Meyle - Corporate Logo
T#:52762526
Part#: 3148100005
Special Order: No Guaranteed ETA
New Item
$ 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
MEYLE Crank Position Sensor - BMW E46, E90
Meyle - Corporate Logo
T#:52621846
Part#: MPS0126
Special Order: No Guaranteed ETA
New Item
$ 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
Meyle Crank Position Sensor - E36, E34
Meyle - Corporate Logo
T#:55497425
Part#: 3148998003
Special Order: No Guaranteed ETA
New Item
$ 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.

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