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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

T#:56110332

Part#: SR0492NKT4

In Stock

$ 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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Vargas Coolant Level Extension Harness - BMW B48/B58/S58

T#:51813310

Part#: VTT-FAB-HC

Ships in 10 Business Days

$ 49.99 USD

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$ 49.99 USD

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Simplify your next fabrication project with the VTT-FAB series Coolant Extension Harness.

Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S6...

T#:51672717

Part#: VTT-MAP-HARNESS

Ships in 10 Business Days

$ 59.99 USD

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$ 59.99 USD

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As part of the VTT-FAB fabrication line, this extension harness is designed for builders and tuners who need flexibility.

Vargas Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW...

T#:52129729

Part#: VTT56BSENSKIT64

Ships in 10 Business Days

$ 209.99 USD

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$ 209.99 USD

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The VTT 6-Bar MAP sensor kit provides the necessary overhead to monitor boost levels with a linear voltage scale that makes software calibration straightforward.

Vargas USB To Serial For HPFP Controller - BMW N54

T#:51778112

Part#: N54-USB-SERIAL-H

Ships in 10 Business Days

$ 37.99 USD

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$ 37.99 USD

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Take full control of your N54’s fueling system with the Vargas Turbo Technologies USB to Serial adapter.

Genuine BMW Battery Management Electronics Control Module - BMW G09 G...

T#:55785659

Part#: 61278882634

Ships in 2 Business Days

3% off MSRP $ 1,572.99

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

$ 1,532.99 USD

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3% off MSRP

$ 1,572.99

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

$ 1,532.99 USD

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When this critical high-voltage module succumbs to internal hardware failure or water intrusion, your PHEV BMW will instantly lock out its charging capabilities and disable all electric driving modes to protect the vehicle's complex electrical grid. Don't let a failed module keep your hybrid system sidelined. This Genuine BMW replacement unit is the exact factory-spec computer required to replace your corrupted original, fully restoring accurate electric range reporting, optimal cell balancing, and crucial factory safety parameters to your high-voltage accumulator pack.

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Terminal Repair Kit

T#:55281756

Part#: 61138TRKT

Ships in 2 Business Days

$ 42.36 USD

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$ 42.36 USD

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This terminal repair kit is the ideal companion for refreshing damaged wiring pins and keeping your chassis' electrical system functioning flawlessly.

Ground Cable - B48/S58

T#:50311456

Part#: 12425B586B0

Ships in 8 Business Days

3% off MSRP $ 60.99

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

$ 58.99 USD

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3% off MSRP

$ 60.99

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

$ 58.99 USD

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Your vehicle’s ground strap plays a vital role in maintaining a healthy electrical system. Exposure to heat, corrosion, and constant vibration can degrade the strap over time, resulting in weak or inconsistent electrical connections. When the ground strap begins to fail, symptoms can include hard starting, flickering or dim lights, warning messages, erratic sensor behavior, or complete no-start situations. Replacing a worn ground strap restores proper current flow, protects sensitive electronics, and keeps your engine and electrical systems operating reliably.

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RP BASE CONTROL UNIT DME

T#:56869523

Part#: 12145B94D28

Ships in 8 Business Days

3% off MSRP $ 3,430.99

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

$ 3,321.99 USD

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3% off MSRP

$ 3,430.99

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

$ 3,321.99 USD

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Wire Pinning Kit - MLK 1.2 Female Jack

T#:55281746

Part#: 125275WRKT

Ships in 8 Business Days

$ 37.40 USD

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$ 37.40 USD

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This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.

Crankshaft Position Sensor

T#:56254775

Part#: 13627582842

Special Order: No Guaranteed ETA

$ 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.

Connecting Cable For Starter Battery - Positive

T#:56724702

Part#: 61129259425

Special Order: No Guaranteed ETA

$ 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

T#:54816237

Part#: 12617607909

Special Order: No Guaranteed ETA

$ 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.

Starter Motor

T#:56544032

Part#: 12412354701

Special Order: No Guaranteed ETA

$ 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

T#:56507847

Part#: 12141709616

Special Order: No Guaranteed ETA

$ 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.

Oil Level Sensor

T#:55857752

Part#: 12615A740A3

Special Order: No Guaranteed ETA

$ 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.

Febi Oil Level Sensor - BMW F2X, F3X

T#:52516271

Part#: 1000541

Special Order: No Guaranteed ETA

$ 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.

Alternator

T#:56544002

Part#: 12317501690

Special Order: No Guaranteed ETA

$ 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.

Starter Motor

T#:56724716

Part#: 12412354693

Special Order: No Guaranteed ETA

$ 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

T#:55857763

Part#: 12615B4C892

Special Order: No Guaranteed ETA

$ 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

T#:56254756

Part#: 13627809334

Special Order: No Guaranteed ETA

$ 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

T#:54816234

Part#: 1000540

Special Order: No Guaranteed ETA

$ 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

T#:56724736

Part#: 12615A740A2

Special Order: No Guaranteed ETA

$ 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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