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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 With Hardware
Bosch Starter Motor With Hardware
Packaged by Turner - Corporate Logo
T#:56110332
Part#: SR0492NKT4
In Stock
New Item
$ 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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Knock Sensor
Knock Sensor
Bosch - Corporate Logo
T#:54388475
Part#: 13627636937
In Stock
New Item
$ 29.99 USD
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$ 29.99 USD
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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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Intensity Lithium-ION Battery - i34RX - 11.5lbs
Intensity Lithium-ION Battery - i34RX - 11.5lbs
Braille - Corporate Logo
T#:54388454
Part#: I34RX
Ships in 6 Business Days
New Item
$ 949.99 USD
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$ 949.99 USD
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Whether you're building a dedicated track weapon or upgrading your street machine for ultimate reliability, unsprung and upper-chassis weight is the enemy of performance. Positioned high up in the engine bay or rear corners, a heavy factory battery negatively impacts your car's center of gravity.
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Battery Tender Plus Advanced Battery Charging System
Battery Tender Plus Advanced Battery Charging System
Battery Tender - Corporate Logo
T#:49892371
Part#: BTT0210128
Back Ordered
New Item
$ 69.99 USD
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$ 69.99 USD
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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
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$ 78.99 USD
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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
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$ 571.99 USD
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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
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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
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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
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$ 342.99 USD
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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
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$ 430.99 USD
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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
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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
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$ 412.99 USD
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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
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$ 695.99 USD
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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.
Connecting Cable For Starter Battery - Positive
Connecting Cable For Starter Battery - Positive
Febi - Corporate Logo
T#:56724702
Part#: 61129259425
Special Order: No Guaranteed ETA
New Item
$ 52.99 USD
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$ 52.99 USD
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This starter battery connector cable is built to exacting OE specifications, delivering consistent power transfer from the battery.
Febi Engine Oil Level Sensor - 12617607909
Febi Engine Oil Level Sensor - 12617607909
Febi - Corporate Logo
T#:54816237
Part#: 12617607909
Special Order: No Guaranteed ETA
New Item
$ 121.99

This product was last offered at the strikethrough price on
06-10-2026

$ 95.99 USD
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$ 95.99 USD
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Reliable German replacement sensor keeps your BMW oil levels monitored.
Crankshaft Position Sensor
Crankshaft Position Sensor
Febi - Corporate Logo
T#:56254775
Part#: 13627582842
Special Order: No Guaranteed ETA
New Item
$ 19.99 USD
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$ 19.99 USD
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This Febi Crankshaft Position Sensor ensures your ECU receives ultra-fast, precise engine speed and position data under all driving conditions.
Alternator
Alternator
Febi - Corporate Logo
T#:56544002
Part#: 12317501690
Special Order: No Guaranteed ETA
New Item
$ 245.99 USD
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$ 245.99 USD
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Trust Febi Bilstein for clean power output and dependable performance every time you start your engine.
Oil Level Sensor
Oil Level Sensor
Febi - Corporate Logo
T#:55857752
Part#: 12615A740A3
Special Order: No Guaranteed ETA
New Item
$ 87.99 USD
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$ 87.99 USD
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Invaluable for keeping tabs on your engine’s lifeblood, the Febi Bilstein oil level sensor is an essential maintenance item for demanding enthusiasts.
Starter Motor
Starter Motor
Febi - Corporate Logo
T#:56544032
Part#: 12412354701
Special Order: No Guaranteed ETA
New Item
$ 146.99 USD
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$ 146.99 USD
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Built by Febi Bilstein, this complete assembly ensures seamless integration into your vehicle’s electrical and flywheel system.
Crankshaft Sensor With Sealing Ring
Crankshaft Sensor With Sealing Ring
Febi - Corporate Logo
T#:56507847
Part#: 12141709616
Special Order: No Guaranteed ETA
New Item
$ 14.99 USD
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$ 14.99 USD
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Keep your BMW’s engine management system operating at peak performance with this replacement crankshaft position sensor from Febi Bilstein.
Febi Oil Level Sensor - BMW F2X, F3X
Febi Oil Level Sensor - BMW F2X, F3X
Febi - Corporate Logo
T#:52516271
Part#: 1000541
Special Order: No Guaranteed ETA
New Item
$ 90.99 USD
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$ 90.99 USD
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Ensure your vehicle’s engine remains protected with the Febi 1000541 Oil Level Sensor.
Starter Motor
Starter Motor
Febi - Corporate Logo
T#:56724716
Part#: 12412354693
Special Order: No Guaranteed ETA
New Item
$ 147.99 USD
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$ 147.99 USD
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This Febi Bilstein starter motor delivers the cranking performance your BMW needs for instant ignition response every time you turn the key.
Oil Pressure Sensor
Oil Pressure Sensor
Febi - Corporate Logo
T#:55857763
Part#: 12615B4C892
Special Order: No Guaranteed ETA
New Item
$ 23.99 USD
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$ 23.99 USD
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Protect your ultimate driving machine from disastrous lubrication failures with the Febi Bilstein Oil Pressure Sensor.
Crankshaft Position Sensor
Crankshaft Position Sensor
Febi - Corporate Logo
T#:56254756
Part#: 13627809334
Special Order: No Guaranteed ETA
New Item
$ 46.99 USD
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$ 46.99 USD
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Maintain the crisp throttle response and reliable performance of your BMW with this Febi Bilstein Crankshaft Position Sensor.
Engine Oil Level Sensor - 12618608780
Engine Oil Level Sensor - 12618608780
Febi - Corporate Logo
T#:54816234
Part#: 1000540
Special Order: No Guaranteed ETA
New Item
$ 116.99

This product was last offered at the strikethrough price on
06-10-2026

$ 89.00 USD
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$ 89.00 USD
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When BMW threw out the mechanical dipstick, they shifted the responsibility of protecting your engine entirely to the electronic oil level sensor. On the street or the track, knowing your oil level is non-negotiable. If your dashboard sensor readout is throwing errors or lagging, your N52, N54, N55, S55, or N63 engine is operating in the dark. This Febi Bilstein engine oil level sensor is an excellent, cost-effective alternative to expensive dealership parts counter pieces. Febi is an industry-trusted German manufacturer, ensuring this sensor reads with the exact same precision and calibration as original equipment. Keep your ultimate driving machine properly monitored and safe from oil starvation. Key Features Premium German Engineering: Manufactured by Febi Bilstein to match original BMW operational tolerances. Critical Engine Protection: Restores accurate iDrive/instrument cluster oil volume and temperature readouts. Exact Factory Fit: Features the correct 3-pin oval plug orientation for a seamless plug-and-play install. Track-Day Insurance: Ensures your electronic monitoring system functions flawlessly under heavy load. Turner Tip: Oil level sensors are notorious for failing due to age and repeated heat cycles. Because this sensor installs directly into the bottom of the oil pan, make this swap part of your next oil service kit checklist.
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Oil Level Sensor
Oil Level Sensor
Febi - Corporate Logo
T#:56724736
Part#: 12615A740A2
Special Order: No Guaranteed ETA
New Item
$ 47.99 USD
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$ 47.99 USD
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Maintain strict performance reliability and safeguard your engine with the Febi Bilstein Engine Oil Level Sensor.

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