BMW Electrical Sensors, Switches, & Relays for BMW 1 Series E82 (2008-2013)

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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 - Corporate Logo
T#:558831
Part#: 12317561939
In Stock
$ 61.91 USD
Free Shipping on orders $49 and up

Ensure the correct voltage is being sent to/from the alternator, keep you electrical system safe from excessive voltage peaks that could cause damage to sensitive electronics and blow out fuses. Bosch's high quality unit will give you peace of mind knowing the electrical system will be safe and the voltage will remain steady. OEM replacement for BMW part # 12317561939

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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Oil Pressure Switch (fits most BMWs)
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:363
Part#: 12617568480
In Stock
Sale - Save 41% $ 11.99

This product was last offered at the strikethrough price on
04-21-2026

$ 7.02 USD
Free Shipping on orders $49 and up
Sale - Save 41%
$ 11.99

This product was last offered at the strikethrough price on
04-21-2026

$ 7.02 USD
Free Shipping on orders $49 and up
Having your oil pressure light come on can mean very serious problems. Or it could just be this switch that fails several times over a car's lifespan. By no means should you ignore the warning light but replacing this sensor could be the actual culprit. The other problem with this switch is that oil can leak past its seal. With the oil under a lot of pressure at this point, the oil loss can be a serious concern. It's a simple replacement when doing most oil change work.

This Oil Pressure Switch fits the following BMWs:
1985-1991 E30 318i, 318is, 325e, 325i, M3
1992-1999 E36 318i/is, 325i/is, 328i/is, 323is, M3
1992-1997 E31 840i, 850i
1988-1994 E32 735i, 735iL, 740i, 740iL
1989-1995 E34 525i, 530i, 535i, 540i, M5
1995-2001 E38 740i, 740iL, 750i, 750iL
1996-2002 Z3 Roadster/Coupe 1.9, 2.3, 2.5, 2.8, 3.0, 3.2
1997-2003 E39 525i, 528i, 530i, 540i, M5
1999-2005 E46 323, 325, 328, 330, M3
2000-2003 Z8 roadster
2001-2006 E53 X5 X5 3.0i, X5 4.4i, X5 4.6is, X5 4.8is
2002+ E65/E66 745i, 745li, 750i, 750li, 760i, B7 Alpina
2003+ Z4 Roadster/Coupe Z4 2.5, 3.0, 3.0si
2004+ E60 525i, 530i, 535i, 545i, 550i, M5
2005+ E63/E64 645Ci, 650i, M6
2005+ E83 X3 X3 2.5, X3 3.0
2006+ E90/E92 325, 328, 330, 335
2007+ E70 X5 X5 3.0i, X5 4.8i
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Rein Alternator Mounting Screw Set
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:14795
Part#: 12310392568
Ships in 4 Business Days
Sale - Save 5% $ 20.99

This product was last offered at the strikethrough price on
08-31-2026

$ 19.94 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 20.99

This product was last offered at the strikethrough price on
08-31-2026

$ 19.94 USD
Free Shipping on orders $49 and up


BMW Set Of Alu. Screws Generator -
This item fits the following BMW Chassis:
E70 X5,E82,E83 X3,E85,E86,E89 Z4,E90,E92,E93,F10,F25 X3

Fits BMW Engines including:
N51,N52,N52N

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Bosch - Corporate Logo
T#:375327
Part#: 61131372626
In Stock at Vendor
$ 2.03 USD
Free Shipping on orders $49 and up

Starter Mounting Hardware
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594380
Part#: 12410392577
Ships in 2 Business Days
Sale - Save 5% $ 10.99

This product was last offered at the strikethrough price on
08-31-2026

$ 10.44 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 10.99

This product was last offered at the strikethrough price on
08-31-2026

$ 10.44 USD
Free Shipping on orders $49 and up
Modern starter and water pump fasteners are torque-to-yield, meaning they stretch and can only be safely used once. Replace your hardware for peace of mind.
Bosch - Corporate Logo
T#:57376634
Part#: AL0839XKT
Back Ordered
New Item
$ 476.86

This product was last offered at the strikethrough price on
08-23-2026

$ 422.86 USD
Free Shipping on orders $49 and up
$ 422.86 USD
Free Shipping on orders $49 and up
Protect your BMW's electrical performance on the road and track with the Bosch AL0839X remanufactured alternator. Designed to handle high demand electrical loads under spirited driving conditions