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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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Bosch Starter Motor - E32 750il E38 750il E31 850i 850ci
Bosch Starter Motor - E32 750il E38 750il E31 850i 850ci
Bosch - Corporate Logo
T#:1175
Part#: SR444X
In Stock at Vendor
Sale - Save 5% $ 279.99

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

$ 265.75 USD
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Sale - Save 5%
$ 279.99

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

$ 265.75 USD
Add to Wish List

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:
1988-1991 E32 7 Series 750il
1995-2001 E38 7 Series 750il
1991-1998 E31 8 Series 850i 850ci

 

Includes $75.00 core charge to be refunded on return of your rebuildable core.

 

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Knock Sensor
Knock Sensor
Bosch - Corporate Logo
T#:54388475
Part#: 13627636937
In Stock
New Item
$ 29.99 USD
Free Shipping on orders $49 and up
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$ 29.99 USD
Free Shipping on orders $49 and up
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Keep your ignition timing razor-sharp and your engine safe from destructive detonation. This replacement Knock Sensor acts as your engine's first line of defense, constantly listening for pre-ignition "pinging" or knocking.
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BATTERY COVER
BATTERY COVER
Genuine MINI - Corporate Logo
T#:541111
Part#: 51717290727
In Stock
Sale - Save 39% $ 29.99

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

$ 18.23 USD
Free Shipping on orders $49 and up
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Sale - Save 39%
$ 29.99

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

$ 18.23 USD
Free Shipping on orders $49 and up
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URO Engine Crankshaft Position Center - BMW
URO Engine Crankshaft Position Center - BMW
URO - Corporate Logo
T#:52621857
Part#: 12141709616
Ships on Sep 9, 2026
New Item
$ 25.99 USD
Free Shipping on orders $49 and up
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$ 25.99 USD
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The URO Parts 020655 Crankshaft Position Sensor offers a cost-effective alternative to expensive OE components without sacrificing quality or longevity.
URO Manifold Air Pressure Sensor - R50, R52, R53
URO Manifold Air Pressure Sensor - R50, R52, R53
URO - Corporate Logo
T#:54388350
Part#: 12140872648
Ships in 1 Business Day
New Item
$ 35.99 USD
Free Shipping on orders $49 and up
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$ 35.99 USD
Free Shipping on orders $49 and up
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This unit serves as an ideal baseline or a crucial component replacement
URO Camshaft Position Sensor - E90, E70 - M57
URO Camshaft Position Sensor - E90, E70 - M57
URO - Corporate Logo
T#:55821688
Part#: 13627792256
Ships in 1 Business Day
New Item
$ 17.99 USD
Free Shipping on orders $49 and up
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$ 17.99 USD
Free Shipping on orders $49 and up
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This URO sensor is built to withstand the intense heat cycles of the BMW engine bay, offering a dependable, budget-friendly solution to restore peak engine efficiency. Designed as a direct swap for the factory unit
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Battery Cable - With Pole
Battery Cable - With Pole
Bapmic - Corporate Logo
T#:54388517
Part#: 61129259425
Ships in 2 Business Days
New Item
$ 126.99 USD
Free Shipping on orders $49 and up
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$ 126.99 USD
Free Shipping on orders $49 and up
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On the track or on the street, your BMW’s electrical architecture demands absolute consistency. A degraded positive battery cable introduces unwanted resistance, leading to weak starts, alternator strain, and erratic module behavior. When it’s time to replace a compromised factory cable, you don’t need over-hyped marketing—you need a part that fits precisely and restores factory grid integrity.
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Starter Solenoid
Starter Solenoid
Bosch - Corporate Logo
T#:57231530
Part#: 12411427080
Special Order: No Guaranteed ETA
New Item
$ 78.99 USD
Free Shipping on orders $49 and up
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$ 78.99 USD
Free Shipping on orders $49 and up
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When you are at the track or gearing up for a weekend backroad drive, the last thing you need is a sluggish starter holding your BMW back.
Remanufactured Alternator
Remanufactured Alternator
Bosch - Corporate Logo
T#:57267768
Part#: 12317616126
Special Order: No Guaranteed ETA
New Item
$ 571.99 USD
Free Shipping on orders $49 and up
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$ 571.99 USD
Free Shipping on orders $49 and up
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Keep your BMW's vital electronics powered and your engine running at peak efficiency with a premium remanufactured alternator from Bosch.
Starter
Starter
Bosch - Corporate Logo
T#:57304035
Part#: SR3295N
Special Order: No Guaranteed ETA
New Item
$ 441.99 USD
Free Shipping on orders $49 and up
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$ 441.99 USD
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This new starter delivers crisp power and rapid engine speed recovery, avoiding the typical voltage drop issues associated with worn original units.
Remanufactured Alternator - 12V - 170A
Remanufactured Alternator - 12V - 170A
Bosch - Corporate Logo
T#:57267766
Part#: 12317605478
Special Order: No Guaranteed ETA
New Item
$ 499.99 USD
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$ 499.99 USD
Free Shipping on orders $49 and up
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Maintain peak battery performance and protect your vehicle's complex electrical architecture with a motorsport-tested, factory-grade charging replacement.
AL41X Remanufactured Alternator
AL41X Remanufactured Alternator
Bosch - Corporate Logo
T#:57231540
Part#: 12311466084
Special Order: No Guaranteed ETA
New Item
$ 286.99 USD
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$ 286.99 USD
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Ensure your BMW or European vehicle maintains uninterrupted power under demanding driving conditions with this premium remanufactured alternator by Bosch.
Starter - Remanufactured
Starter - Remanufactured
Bosch - Corporate Logo
T#:57267807
Part#: 12418621839
Special Order: No Guaranteed ETA
New Item
$ 342.99 USD
Free Shipping on orders $49 and up
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$ 342.99 USD
Free Shipping on orders $49 and up
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Remanufactured Alternator - 12V - 150 A
Remanufactured Alternator - 12V - 150 A
Bosch - Corporate Logo
T#:57267763
Part#: AL0757X
Special Order: No Guaranteed ETA
New Item
$ 430.99 USD
Free Shipping on orders $49 and up
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$ 430.99 USD
Free Shipping on orders $49 and up
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This high-output Bosch remanufactured alternator ensures your ignition system and performance electronics receive clean, steady amperage under high-demand driving conditions.
Starter
Starter
Bosch - Corporate Logo
T#:57267806
Part#: 12418625995
Special Order: No Guaranteed ETA
New Item
$ 463.99 USD
Free Shipping on orders $49 and up
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$ 463.99 USD
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Bosch starter units deliver the high-torque cranking performance required to reliably start modern high-compression BMW engines under all thermal conditions.
Starter - Remanufactured
Starter - Remanufactured
Bosch - Corporate Logo
T#:57304037
Part#: 12417843530
Special Order: No Guaranteed ETA
New Item
$ 412.99 USD
Free Shipping on orders $49 and up
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$ 412.99 USD
Free Shipping on orders $49 and up
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Ensure your high-performance engine cranks reliably every time with an OE-quality starter motor from Bosch.
Remanufactured Alternator
Remanufactured Alternator
Bosch - Corporate Logo
T#:57267767
Part#: 12317561004
Special Order: No Guaranteed ETA
New Item
$ 695.99 USD
Free Shipping on orders $49 and up
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$ 695.99 USD
Free Shipping on orders $49 and up
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This Bosch remanufactured alternator delivers the rock-solid current required to keep your ignition, fuel management, and chassis electronics operating at peak efficiency under demanding conditions.
Mass Air Flow (MAF) Sensor
Mass Air Flow (MAF) Sensor
URO - Corporate Logo
T#:56977979
Part#: 13627520519
Back Ordered
New Item
$ 77.99 USD
Free Shipping on orders $49 and up
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$ 77.99 USD
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Keep your BMW performing at its peak with this reliable Mass Air Flow sensor replacement from URO Parts.

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