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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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N52 Valvetronic Camshaft Adjuster Replacement Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:5416764

Part#: 11377548388TMSKT

In Stock

$ 179.28 USD

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$ 179.28 USD

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Includes new Valvetronic motor, gasket, and hardware. The Valv-tronic adjuster unit changes the the timing shaft to adjust the valve timing.

Valvetronic Camshaft Adjuster replacement kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15677492

Part#: 11127556161-KT

In Stock

$ 179.28 USD

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$ 179.28 USD

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Valv-tronic adjuster unit, Changes the the timing shaft to adjust the valve timing.

Bosch Starter Motor With Hardware

10X Entries Into Our F80 M3 Sweepstakes

T#:56110332

Part#: SR0492NKT4

In Stock

$ 273.99

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

$ 261.99 USD

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$ 261.99 USD

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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.

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Eccentric Shaft Sensor Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:5416787

Part#: 11377524879TMSKT

In Stock

Sale - Save 6% $ 235.99

This product was last offered at the strikethrough price on
06-16-2026

$ 221.57 USD

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Sale - Save 6%

$ 235.99

This product was last offered at the strikethrough price on
06-16-2026

$ 221.57 USD

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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.

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Eccentric Shaft Sensor Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15677508

Part#: 11127581215-KT

In Stock

Sale - Save 6% $ 235.42

This product was last offered at the strikethrough price on
06-16-2026

$ 221.57 USD

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Qty

Sale - Save 6%

$ 235.42

This product was last offered at the strikethrough price on
06-16-2026

$ 221.57 USD

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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.

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Genuine BMW Terminal Socket - Mcon 2.8 - Multiple BMWs

T#:40627

Part#: 12527567482

In Stock

$ 0.99 USD

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$ 0.99 USD

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Used in a wide variety of BMW connectors, these terminal sockets can come in handy when working on your wiring components.

Genuine BMW Camshaft Position Sensor Connector Repair Kit

T#:58052445

Part#: 12527507526KT2

In Stock

$ 25.18 USD

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$ 25.18 USD

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Genuine BMW Wiring Harness, Actuator Con - 61129241328

T#:139452

Part#: 61129241328

In Stock

Sale - Save 40% $ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 97.57 USD

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Sale - Save 40%

$ 162.99

This product was last offered at the strikethrough price on
06-22-2026

$ 97.57 USD

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Genuine BMW Wiring Harness, Actuator Control Module -
This item fits the following BMW Chassis:
F10,F12,F13

SEG Automotive Alternator - SEG Automotive 0121.715.118 - 12317560985...

T#:54851991

Part#: 12317560985

Ships in 1 Business Day

$ 1,049.99

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

$ 952.99 USD

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$ 952.99 USD

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MINI Alternator - SEG Automotive 0125.711.078

T#:54851993

Part#: 12317613445

In Stock

$ 564.99

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

$ 563.99 USD

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$ 563.99 USD

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SEG Automotive Alternator - SEG Automotive 0124.525.588 - 12317541694...

T#:54851984

Part#: 12317541694

Ships in 1 Business Day

$ 521.99

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

$ 470.99 USD

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$ 470.99 USD

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SEG Automotive Starter - SEG Automotive 0001.108.460 - 12417610344 - ...

T#:55857741

Part#: 12417610344

Ships in 1 Business Day

$ 368.99

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

$ 337.99 USD

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$ 337.99 USD

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MINI Starter - SEG Automotive 0001.106.026

T#:54851997

Part#: 12411489995

Ships in 1 Business Day

$ 432.99

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

$ 402.99 USD

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$ 402.99 USD

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MINI Alternator - SEG Automotive 0124.325.157

T#:54851988

Part#: 12317550319

Ships in 1 Business Day

$ 473.99

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

$ 431.99 USD

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$ 431.99 USD

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SEG Automotive Alternator - SEG Automotive 0124.515.223 - 12317519618...

T#:54851980

Part#: 12317519618

Ships in 1 Business Day

$ 503.99

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

$ 457.99 USD

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$ 457.99 USD

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Terminal Repair Kit

T#:55281756

Part#: 61138TRKT

Ships in 1 day

$ 42.36 USD

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$ 42.36 USD

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This terminal repair kit is the ideal companion for refreshing damaged wiring pins and keeping your chassis' electrical system functioning flawlessly.

Genuine BMW Battery Management Electronics Control Module - BMW G09 G...

T#:55785659

Part#: 61278882634

Ships in 1 day

3% off MSRP $ 1,572.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,532.99 USD

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3% off MSRP

$ 1,572.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,532.99 USD

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When this critical high-voltage module succumbs to internal hardware failure or water intrusion, your PHEV BMW will instantly lock out its charging capabilities and disable all electric driving modes to protect the vehicle's complex electrical grid. Don't let a failed module keep your hybrid system sidelined. This Genuine BMW replacement unit is the exact factory-spec computer required to replace your corrupted original, fully restoring accurate electric range reporting, optimal cell balancing, and crucial factory safety parameters to your high-voltage accumulator pack.

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BODY DOMAIN CONTROLLER BDC

T#:59697587

Part#: 61355B90834

Ships in 3 Business Days

5% off MSRP $ 1,292.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,232.99 USD

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5% off MSRP

$ 1,292.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,232.99 USD

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Wire Pinning Kit - MLK 1.2 Female Jack

T#:55281746

Part#: 125275WRKT

Ships in 6 Business Days

$ 37.40 USD

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$ 37.40 USD

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This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.

RP BASE CONTROL UNIT DME

T#:56869523

Part#: 12145B94D28

Ships in 6 Business Days

3% off MSRP $ 3,430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,321.99 USD

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Qty

3% off MSRP

$ 3,430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,321.99 USD

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SEG Automotive New 150A Alternator - 0124.525.561 - E21, E30, E36, E4...

T#:58965212

Part#: 0124.525.561

Ships on Nov 25, 2026

$ 487.99 USD

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$ 487.99 USD

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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.

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Battery Adapter Lead

T#:59038392

Part#: 20484

Ships on Nov 25, 2026

$ 46.99 USD

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$ 46.99 USD

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A smart spare for owners of E9x, E6x and E7x BMWs.

Starter Motor

T#:59001789

Part#: 12417570487

Ships on Nov 25, 2026

$ 325.99 USD

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$ 325.99 USD

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This SEG Automotive unit is built as a direct replacement for the factory 0.9 kW starter on the R50 Hatch and R52 Convertible.

SenCom IBS Battery Adapter Lead - 20481 - E60, E61, E63 E64 6 Series ...

T#:59038390

Part#: 20481

Ships on Nov 25, 2026

$ 28.99 USD

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$ 28.99 USD

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Made in Germany, it is a dependable part for battery service or electrical repairs. Ideal for owners keeping their E60 or E63 healthy.

SEG Automotive New Alternator - 0124.525.523 - E46 325i 325Ci 330Ci, ...

T#:58965213

Part#: 0124.525.523

Ships on Nov 25, 2026

$ 495.99 USD

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$ 495.99 USD

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Your BMW's charging system powers everything from ignition to infotainment, so a weak alternator affects the whole car.

SEG Automotive New 120A Alternator - 0124.515.052 - E46, E39 525i 530...

T#:58965210

Part#: 0124.515.052

Ships on Nov 25, 2026

$ 485.99 USD

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$ 485.99 USD

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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.

Temperature Sensor Wiring Repair Kit

T#:59038384

Part#: 10171

Ships on Nov 25, 2026

$ 32.99 USD

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$ 32.99 USD

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SenCom's repair kit restores it with a 2-wire, 200mm pigtail of silicone-insulated copper-tin wire.

SEG Automotive N47 N57 Starter Motor - 0001.148.508 - F3x, F10 5 Seri...

T#:58965209

Part#: 0001.148.508

Ships on Nov 25, 2026

$ 274.99 USD

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$ 274.99 USD

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A healthy starter is what gets your BMW from parked to pulling away without a second thought.

SenCom Right Tailgate Wiring Harness Repair Kit - 2016034-2 - E34 525...

T#:59038375

Part#: 2016034-2

Ships on Nov 25, 2026

$ 63.99 USD

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$ 63.99 USD

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SenCom's right-side kit restores the harness with 10 long, 1250mm circuits of copper-tin wire.

SEG Automotive Starter - 12418589891 - G30 540d xDrive

T#:59001787

Part#: 12418589891

Ships on Nov 25, 2026

$ 276.99 USD

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$ 276.99 USD

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Modern G-chassis BMWs deliver serious performance, and none of it matters if the engine won't start.

SEG Automotive B46 B48 New Starter Motor - 0001.170.202 - F3x 330i 43...

T#:58965208

Part#: 0001.170.202

Ships on Nov 25, 2026

$ 216.99 USD

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$ 216.99 USD

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The smart choice for F-chassis owners who want their car starting on the first try, every time.

Starter Motor

T#:59001784

Part#: 12417616698

Ships on Nov 25, 2026

$ 275.99 USD

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$ 275.99 USD

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On a MINI built for quick, spirited driving, there is no reason to put up with slow or hesitant cranking.

SEG Automotive Alternator - 12311711204 - E24 635CSi

T#:59001785

Part#: 12311711204

Ships on Nov 25, 2026

$ 726.99 USD

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$ 726.99 USD

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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 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:401689

Part#: OILTEMPGAUGEBRKK

Back Ordered

$ 193.26 USD

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$ 193.26 USD

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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.

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