Find Parts That Fit Your Vehicle

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.

Sub-Categories

Sort By:
N52 Valvetronic Camshaft Adjuster Replacement Kit
N52 Valvetronic Camshaft Adjuster Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416764
Part#: 11377548388TMSKT
In Stock
Sale - Save 19% $ 220.99

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

$ 179.28 USD
Free Shipping
Add to Wish List
Sale - Save 19%
$ 220.99

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

$ 179.28 USD
Free Shipping
Add to Wish List
Includes new Valvetronic motor, gasket, and hardware. The Valv-tronic adjuster unit changes the the timing shaft to adjust the valve timing.
BMW E6X / E8X / E9X - N52 Replacement Starter Kit
BMW E6X / E8X / E9X - N52 Replacement Starter Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15777314
Part#: SR0492NKT2-KT
In Stock
Sale - Save 4% $ 284.99

This product was last offered at the strikethrough price on
08-14-2026

$ 273.79 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 4%
$ 284.99

This product was last offered at the strikethrough price on
08-14-2026

$ 273.79 USD
Free Shipping on orders $49 and up
Add to Wish List
Is your car having trouble starting? Does your starter click when you turn the key? Sounds like it's time for a new starter motor! Includes new starter with no core charge, intake gaskets, throttle body gasket and hardware.
Show More Show Less
Bosch Starter Motor With Hardware
Bosch Starter Motor With Hardware
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:56110332
Part#: SR0492NKT4
In Stock
New Item
$ 273.99

This product was last offered at the strikethrough price on
08-14-2026

$ 261.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 261.99 USD
Free Shipping on orders $49 and up
Add to Wish List
At the core is a brand-new Bosch Starter Motor, engineered to withstand extreme operating conditions while delivering immediate cranking speed. This kit includes also the required Genuine BMW Aluminum Mounting Screw Set.
Show More Show Less
Valvetronic Camshaft Adjuster replacement kit
Valvetronic Camshaft Adjuster replacement kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677492
Part#: 11127556161-KT
In Stock
Sale - Save 19% $ 220.99

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

$ 179.28 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 19%
$ 220.99

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

$ 179.28 USD
Free Shipping on orders $49 and up
Add to Wish List
Valv-tronic adjuster unit, Changes the the timing shaft to adjust the valve timing.
Eccentric Shaft Sensor Kit
Eccentric Shaft Sensor Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677508
Part#: 11127581215-KT
In Stock
Sale - Save 18% $ 270.16

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

$ 221.57 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 18%
$ 270.16

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

$ 221.57 USD
Free Shipping on orders $49 and up
Add to Wish List
The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Often caused by oil getting into the connection for the wiring harness and damaging the sensor and causing a check engine light. With this kit you get the the sensor along with new valve cover and eccentric shaft adjuster gaskets to ensure a complete leak free job.
Show More Show Less
Eccentric Shaft Sensor Kit
Eccentric Shaft Sensor Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416787
Part#: 11377524879TMSKT
In Stock
Sale - Save 18% $ 270.99

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

$ 221.57 USD
Free Shipping
Add to Wish List
Sale - Save 18%
$ 270.99

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

$ 221.57 USD
Free Shipping
Add to Wish List
Includes a new sensor as well as valve cover and eccentric gaskets for a complete service. The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Often caused by oil getting into the connection for the wiring harness and damaging the sensor and causing a check engine light. With this kit you get the the sensor along with new valve cover and eccentric shaft adjuster gaskets to ensure a complete leak free job.
Show More Show Less
BMW Alternator - SEG Automotive 0121.715.118
BMW Alternator - SEG Automotive 0121.715.118
SEG Automotive - Corporate Logo
T#:54851991
Part#: 12317560985
Ships in 2 Business Days
New Item
$ 1,049.99

This product was last offered at the strikethrough price on
07-16-2026

$ 961.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 961.99 USD
Free Shipping on orders $49 and up
Add to Wish List
MINI Alternator - SEG Automotive 0125.711.078
MINI Alternator - SEG Automotive 0125.711.078
SEG Automotive - Corporate Logo
T#:54851993
Part#: 12317613445
Ships in 2 Business Days
New Item
$ 564.99

This product was last offered at the strikethrough price on
07-16-2026

$ 521.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 521.99 USD
Free Shipping on orders $49 and up
Add to Wish List
MINI Alternator - SEG Automotive 0124.325.157
MINI Alternator - SEG Automotive 0124.325.157
SEG Automotive - Corporate Logo
T#:54851988
Part#: 12317550319
Ships in 2 Business Days
New Item
$ 473.99

This product was last offered at the strikethrough price on
07-16-2026

$ 436.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 436.99 USD
Free Shipping on orders $49 and up
Add to Wish List
BMW Alternator - SEG Automotive 0124.515.223
BMW Alternator - SEG Automotive 0124.515.223
SEG Automotive - Corporate Logo
T#:54851980
Part#: 12317519618
Ships in 2 Business Days
New Item
$ 503.99

This product was last offered at the strikethrough price on
07-16-2026

$ 462.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 462.99 USD
Free Shipping on orders $49 and up
Add to Wish List
BMW Alternator - SEG Automotive 0124.525.588
BMW Alternator - SEG Automotive 0124.525.588
SEG Automotive - Corporate Logo
T#:54851984
Part#: 12317541694
Ships in 2 Business Days
New Item
$ 521.99

This product was last offered at the strikethrough price on
07-16-2026

$ 474.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 474.99 USD
Free Shipping on orders $49 and up
Add to Wish List
BMW Starter - SEG Automotive 0001.108.460
BMW Starter - SEG Automotive 0001.108.460
SEG Automotive - Corporate Logo
T#:55857741
Part#: 12417610344
Ships in 2 Business Days
New Item
$ 368.99

This product was last offered at the strikethrough price on
07-16-2026

$ 337.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 337.99 USD
Free Shipping on orders $49 and up
Add to Wish List
MINI Starter - SEG Automotive 0001.106.026
MINI Starter - SEG Automotive 0001.106.026
SEG Automotive - Corporate Logo
T#:54851997
Part#: 12411489995
Ships in 2 Business Days
New Item
$ 432.99

This product was last offered at the strikethrough price on
07-16-2026

$ 406.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 406.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S63
Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S6...
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51672717
Part#: VTT-MAP-HARNESS
Ships on Oct 27, 2026
New Item
$ 59.99 USD
Free Shipping
Add to Wish List
$ 59.99 USD
Free Shipping
Add to Wish List
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...
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52129729
Part#: VTT56BSENSKIT64
Ships on Oct 27, 2026
New Item
$ 209.99 USD
Free Shipping
Add to Wish List
$ 209.99 USD
Free Shipping
Add to Wish List
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 Coolant Level Extension Harness - BMW B48/B58/S58
Vargas Coolant Level Extension Harness - BMW B48/B58/S58
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51813310
Part#: VTT-FAB-HC
Ships on Oct 27, 2026
New Item
$ 49.99 USD
Free Shipping
Add to Wish List
$ 49.99 USD
Free Shipping
Add to Wish List
Simplify your next fabrication project with the VTT-FAB series Coolant Extension Harness.
Vargas USB To Serial For HPFP Controller - BMW N54
Vargas USB To Serial For HPFP Controller - BMW N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51778112
Part#: N54-USB-SERIAL-H
Ships on Oct 27, 2026
New Item
$ 37.99 USD
Free Shipping
Add to Wish List
$ 37.99 USD
Free Shipping
Add to Wish List
Take full control of your N54’s fueling system with the Vargas Turbo Technologies USB to Serial adapter.
Battery Adapter Lead
Battery Adapter Lead
SenCom - Corporate Logo
T#:59038392
Part#: 20484
Ships on Nov 4, 2026
New Item
$ 46.99 USD
Add to Wish List
$ 46.99 USD
Add to Wish List
A smart spare for owners of E9x, E6x and E7x BMWs.
IBS Battery Adapter Lead
IBS Battery Adapter Lead
SenCom - Corporate Logo
T#:59038390
Part#: 20481
Ships on Nov 4, 2026
New Item
$ 28.99 USD
Add to Wish List
$ 28.99 USD
Add to Wish List
Made in Germany, it is a dependable part for battery service or electrical repairs. Ideal for owners keeping their E60 or E63 healthy.
Temperature Sensor Wiring Repair Kit
Temperature Sensor Wiring Repair Kit
SenCom - Corporate Logo
T#:59038384
Part#: 10171
Ships on Nov 4, 2026
New Item
$ 32.99 USD
Add to Wish List
$ 32.99 USD
Add to Wish List
SenCom's repair kit restores it with a 2-wire, 200mm pigtail of silicone-insulated copper-tin wire.
Starter
Starter
SEG Automotive - Corporate Logo
T#:59001787
Part#: 12418589891
Ships on Nov 4, 2026
New Item
$ 276.99 USD
Add to Wish List
$ 276.99 USD
Add to Wish List
Modern G-chassis BMWs deliver serious performance, and none of it matters if the engine won't start.
Starter Motor
Starter Motor
SEG Automotive - Corporate Logo
T#:58965209
Part#: 0001.148.508
Ships on Nov 4, 2026
New Item
$ 274.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 274.99 USD
Free Shipping on orders $49 and up
Add to Wish List
A healthy starter is what gets your BMW from parked to pulling away without a second thought.
Right Tailgate Wiring Harness Repair Kit
Right Tailgate Wiring Harness Repair Kit
SenCom - Corporate Logo
T#:59038375
Part#: 2016034-2
Ships on Nov 4, 2026
New Item
$ 63.99 USD
Add to Wish List
$ 63.99 USD
Add to Wish List
SenCom's right-side kit restores the harness with 10 long, 1250mm circuits of copper-tin wire.
New Alternator
New Alternator
SEG Automotive - Corporate Logo
T#:58965213
Part#: 0124.525.523
Ships on Nov 4, 2026
New Item
$ 495.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 495.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Your BMW's charging system powers everything from ignition to infotainment, so a weak alternator affects the whole car.
New 150A Alternator
New 150A Alternator
SEG Automotive - Corporate Logo
T#:58965212
Part#: 0124.525.561
Ships on Nov 4, 2026
New Item
$ 487.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 487.99 USD
Free Shipping on orders $49 and up
Add to Wish List
SEG Automotive, the company behind Bosch's starter motor and generator business, builds this brand-new 150-amp alternator with a freewheel pulley that smooths out belt loads for a quieter, longer-lasting accessory drive.
Show More Show Less
New 120A Alternator
New 120A Alternator
SEG Automotive - Corporate Logo
T#:58965210
Part#: 0124.515.052
Ships on Nov 4, 2026
New Item
$ 485.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 485.99 USD
Free Shipping on orders $49 and up
Add to Wish List
A strong charging system keeps everything from your ignition to your stereo working at its best, and a failing alternator can undermine all of it.
Starter Motor
Starter Motor
SEG Automotive - Corporate Logo
T#:59001784
Part#: 12417616698
Ships on Nov 4, 2026
New Item
$ 275.99 USD
Add to Wish List
$ 275.99 USD
Add to Wish List
On a MINI built for quick, spirited driving, there is no reason to put up with slow or hesitant cranking.
New Starter Motor
New Starter Motor
SEG Automotive - Corporate Logo
T#:58965208
Part#: 0001.170.202
Ships on Nov 4, 2026
New Item
$ 216.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 216.99 USD
Free Shipping on orders $49 and up
Add to Wish List
The smart choice for F-chassis owners who want their car starting on the first try, every time.
Starter Motor
Starter Motor
SEG Automotive - Corporate Logo
T#:59001789
Part#: 12417570487
Ships on Nov 4, 2026
New Item
$ 325.99 USD
Add to Wish List
$ 325.99 USD
Add to Wish List
This SEG Automotive unit is built as a direct replacement for the factory 0.9 kW starter on the R50 Hatch and R52 Convertible.
Alternator
Alternator
SEG Automotive - Corporate Logo
T#:59001785
Part#: 12311711204
Ships on Nov 4, 2026
New Item
$ 726.99 USD
Add to Wish List
$ 726.99 USD
Add to Wish List
The E24 M635CSi is one of BMW's great grand tourers, and keeping one healthy means a charging system you can count on.
Oil Temperature Sensor And Gauge Kit - Blue & Red - Multiple BMWs
Oil Temperature Sensor And Gauge Kit - Blue & Red - Multiple BMWs ...
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:401689
Part#: OILTEMPGAUGEBRKK
Back Ordered
Sale - Save 2% $ 196.99

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

$ 193.26 USD
Free Shipping
Add to Wish List
Sale - Save 2%
$ 196.99

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

$ 193.26 USD
Free Shipping
Add to Wish List
The EVO series from ProSport Gauges is an award winning, industry leading option for those looking to push their car's limits. They allowing you to monitor crucial engine functions in one quick glance with advanced precision. Featuring a dual color readout, you can customize your readout to your liking. Offering a user friendly readout with a digital reading in the center with a bar-graph style sweep around the gauge as well.
Show More Show Less

Select Vehicle

BMW Mini
Clear Vehicle

Purpose

Category

Brand

Price

$
$

Special Offers

Shipping