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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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Burger Motorsport 4 BAR TMAP Sensor & Adapter - BMW N55/N54/S55 (2007...

T#:34885402

Part#: 4BAR TMAP

In Stock

$ 139.99 USD

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$ 139.99 USD

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Use these plug and play adapters to quickly adapt a 4bar TMAP sensor to your N54/N55/S55 BMW, raising the boost maximum boost range from 20psi factory up to 43psi.

BMW E6X / E8X / E9X - N52 Replacement Starter Kit

T#:15777314

Part#: SR0492NKT2-KT

In Stock

Sale - Save 8% $ 296.99

This product was last offered at the strikethrough price on
03-17-2026

$ 273.79 USD

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Sale - Save 8%

$ 296.99

This product was last offered at the strikethrough price on
03-17-2026

$ 273.79 USD

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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.

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Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70

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T#:1196078

Part#: 12318510090

Ships in 2 Business Days

$ 91.37 USD

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$ 91.37 USD

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OEM replacement for you BMW alternator fixing charging issues

Voltage Regulator

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T#:594108

Part#: 12317603775

Ships in 2 Business Days

$ 71.22

This product was last offered at the strikethrough price on
05-04-2026

$ 70.45 USD

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$ 70.45 USD

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Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

Burger Motorsports 2013+ TypeB 4BAR Adapter - F2X F3X N54 N55 S55 ...

T#:599637

Part#: TYPEB4BARADAPTER

Back Ordered

$ 35.00 USD

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$ 35.00 USD

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Use these plug and play adapters to quickly adapt a 4bar TMAP sensor to your N54/N55/S55 BMW, raising the boost maximum boost range from 20psi factory up to 43psi. For very high boost applications, this 4 BAR adapter can be used which requires Bosch 4 BAR sensor (Part # 281002576). SENSOR NOT INCLUDED, Please see T#587716

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Eccentric Shaft Sensor Kit

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

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Qty

Sale - Save 18%

$ 270.16

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

$ 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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Burger Motorsports 2007-2012 TypeA 4BAR Adapter - E82/88 E9X E6X N54 ...

T#:599636

Part#: TYPEA4BARADAPTER

Ships in 3 Business Days

$ 35.00 USD

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$ 35.00 USD

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Use these plug and play adapters to quickly adapt a 4bar TMAP sensor to your N54/N55/S55 BMW, raising the boost maximum boost range from 20psi factory up to 43psi. For very high boost applications, this 4 BAR adapter can be used which requires Bosch 4 BAR sensor (Part # 281002576). SENSOR NOT INCLUDED, Please see T#587716

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Alternator

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T#:594101

Part#: 12318570672

In Stock at Vendor

$ 1,094.99

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

$ 1,062.99 USD

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$ 1,062.99 USD

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Replacement Alternator from Valeo

Alternator Pulley - E82 E90 E92 E60

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T#:19332

Part#: 12317570152

Ships in 1-2 days

$ 66.99 USD

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$ 66.99 USD

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This OEM alternator pulley has a ratcheting mechanism inside that can wear out, causing a rattling sound. This mechanism allows the alternator to freewheel to a degree. This is only for the Valeo brand alternator/

This item fits the following BMWs:
2008+ E82 BMW 128i with N51 engine
2006-2007 E90 BMW 325i 325xi 330i 330xi - Sedan
2006-2007 E90 BMW 328i 328xi - Sedan with N51 engine
2006-2007 E91 BMW 325xi - Wagon
2007-2007 E92 BMW 328i 328xi 328i xDrive - Coupe with N51 engine
2006-2007 E60 BMW 525i 525xi 530i 530xi

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Bosch Starter Motor With Hardware

T#:56110332

Part#: SR0492NKT4

In Stock

$ 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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Battery Tender Plus Advanced Battery Charging System

T#:49892371

Part#: BTT0210128

In Stock at Vendor

$ 69.99 USD

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$ 69.99 USD

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Remanufactured Alternator - 170A

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T#:594098

Part#: 12317802929

Ships on Aug 10, 2026

$ 323.99 USD

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$ 323.99 USD

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Replacement Alternator from Valeo

MINI N14 N18 Alternator - 120 Amp 439617

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T#:28803228

Part#: 12317619254

In Stock

$ 374.99 USD

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$ 374.99 USD

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MINI N14 N18 Alternator is an essential component for powering the electrical system of your Mini. Engineered to provide reliable performance, this alternator ensures your Mini stays running smoothly. Upgrade your Mini with this genuine alternator for dependable power generation.

Powers the electrical system
Reliable performance
Ensures smooth operation
Genuine Mini part

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Accessory Drive Belt Kit - E34, E83

T#:42167237

Part#: FB0198K

Back Ordered

$ 166.99 USD

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$ 166.99 USD

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Ideal for scheduled maintenance or as a preventive repair, the Accessory Drive Belt Kit offers dependable performance and peace of mind for BMW owners looking to maintain factory-quality operation and longevity

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OEM INA Alternator Pulley - E60, E90

T#:42167235

Part#: EA0202

Back Ordered

$ 46.99

This product was last offered at the strikethrough price on
06-19-2026

$ 33.99 USD

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$ 33.99 USD

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Whether you have a failing component or are performing preventive maintenance, this INA Alternator Pulley from Turner Motorsport is the perfect choice to keep your BMW’s electrical and accessory systems operating at peak performance.

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OEM INA Alternator Pulley - Overrunning Type - E82, E88, E9x, F10, F2...

T#:42167226

Part#: EA0141

Back Ordered

$ 71.99 USD

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$ 71.99 USD

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Whether you're replacing a failing alternator pulley or performing preventive maintenance, this Alternator Pulley ensures your BMW continues to perform with factory precision and reliability.

Alternator

We Price Match - Give Us A Call or Chat!

T#:594102

Part#: 12311247288

Back Ordered

$ 547.99

This product was last offered at the strikethrough price on
05-08-2026

$ 532.99 USD

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$ 532.99 USD

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Replacement Alternator from Valeo

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