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Bosch 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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Bosch Starter Motor - E23 E24 E28

T#:224639

Part#: SR442X

Back Ordered

$ 222.99

This product was last offered at the strikethrough price on
04-15-2026

$ 179.99 USD

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$ 179.99 USD

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Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

This genuine Bosch Starter fits the following BMWs:
1988 E28 5 Series 528e M5
1988-1989 E24 6 Series M6
1984-1987 E23 7 Series 735i

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Re-manufactured Starter Motor - Priced Each

T#:3471789

Part#: 124123547095KT

Back Ordered

$ 346.99

This product was last offered at the strikethrough price on
04-09-2026

$ 340.99 USD

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$ 340.99 USD

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Price Included a $40.00 Core Charge

Remanufactured Alternator

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:638838

Part#: AL46X

Special Order: No Guaranteed ETA

$ 189.99 USD

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$ 189.99 USD

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This genuine Bosch OE-remanufactured unit restores optimal 80-amp charging efficiency, guaranteeing your engine management system receives the steady voltage required for crisp throttle response and flawless operation.

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Bosch Remanufactured Alternator - 150amp

T#:371081

Part#: 12317508054BOSKT

Back Ordered

$ 1,167.99

This product was last offered at the strikethrough price on
04-10-2026

$ 807.99 USD

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$ 807.99 USD

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Includes a $100.00 refundable core charge

OEM Bosch Remanufactured Alternator - AL9453X - F10 528i, F25 2.8i N...

T#:639658

Part#: 12317591271KTKT

Back Ordered

$ 555.99 USD

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$ 555.99 USD

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*Price includes a refundable $65 Core Charge* If your car won't turn over, there is a good chance your starter is shot. Bosch's OEM starter is a high-quality replacement that will give you peace of mind thanks to its long life-span. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Bosch BMW Electrical Sensors, Switches, & Relays

Sub-Categories

Bosch Starter Motor - E23 E24 E28

Re-manufactured Starter Motor - Priced Each

Remanufactured Alternator

Bosch Remanufactured Alternator - 150amp

OEM Bosch Remanufactured Alternator - AL9453X - F10 528i, F25 2.8i N...

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