BMW Electrical Sensors, Switches, & Relays

New Alternator - 140amp | BMW E36 E34 M50 M52 S50 S52

T#:25042544

Part#: 12311744567

In Stock

Sale - Save 15% $ 219.99

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

$ 186.99 USD

Add to Wish List

Qty

Sale - Save 15%

$ 219.99

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

$ 186.99 USD

Add to Wish List

New Alternator - 180 Amp

T#:26438187

Part#: 12317558220

In Stock

Sale - Save 10% $ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD

Add to Wish List

Qty

Sale - Save 10%

$ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD

Add to Wish List

Crankshaft Position Sensor - E36 (OBDI), E34 M50/S50

T#:579816

Part#: 52380

In Stock

Sale - Save 20% $ 48.99

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

$ 39.19 USD

Add to Wish List

Qty

Sale - Save 20%

$ 48.99

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

$ 39.19 USD

Add to Wish List

Common cause of misfires, poor fuel economy, or a crank no start situation. If your M50 or S50 has any of these symptoms, this crankshaft position sensor from Bavarian Autosport is a likely fix.

Bav Auto Camshaft Position Sensor - BMW E36 E39 Z3 M52 S52

T#:639841

Part#: 12141703221

In Stock

Sale - Save 20% $ 37.99

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

$ 30.39 USD

Add to Wish List

Qty

Sale - Save 20%

$ 37.99

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

$ 30.39 USD

Add to Wish List

Faulty camshaft sensors can lead to a number of issues such as hard starts, stalling at low speeds, and check engine (SES) lights. Restore your BMW's smooth operation and reliability by replacing it with a high-quality camshaft sensor from Bav Auto! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

Alternator - 180amp

T#:26438185

Part#: 12317837981

In Stock

Sale - Save 15% $ 304.99

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

$ 259.24 USD

Add to Wish List

Qty

Sale - Save 15%

$ 304.99

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

$ 259.24 USD

Add to Wish List

New Alternator - 120A

T#:25042543

Part#: 12317501690

In Stock

Sale - Save 20% $ 211.99

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

$ 169.59 USD

Add to Wish List

Qty

Sale - Save 20%

$ 211.99

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

$ 169.59 USD

Add to Wish List

N52 Valvetronic Camshaft Adjuster Replacement Kit

T#:5416764

Part#: 11377548388TMSKT

In Stock

Sale - Save 19% $ 220.99

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

$ 179.20 USD

Add to Wish List

Qty

Sale - Save 19%

$ 220.99

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

$ 179.20 USD

Add to Wish List

Includes new Valvetronic motor, gasket, and hardware. The Valv-tronic adjuster unit changes the the timing shaft to adjust the valve timing.

BMW E6X / E8X / E9X - N52 Replacement Starter Kit

T#:15777314

Part#: SR0492NKT2-KT

In Stock

Sale - Save 8% $ 296.99

This product was last offered at the strikethrough price on
03-17-2026

$ 273.79 USD

Add to Wish List

Qty

Sale - Save 8%

$ 296.99

This product was last offered at the strikethrough price on
03-17-2026

$ 273.79 USD

Add to Wish List

Is your car having trouble starting? Does your starter click when you turn the key? Sounds like it's time for a new starter motor! Includes new starter with no core charge, intake gaskets, throttle body gasket and hardware.

Show More Show Less

Alternator - 120amp

T#:25042542

Part#: 12317831436

Ships on Sep 29, 2026

Sale - Save 20% $ 222.99

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

$ 178.39 USD

Add to Wish List

Qty

Sale - Save 20%

$ 222.99

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

$ 178.39 USD

Add to Wish List

Bav Auto Camshaft Position Sensor - E38 740i 740iL 750iL

T#:639840

Part#: 12141742185

Back Ordered

Sale - Save 15% $ 66.99

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

$ 56.94 USD

Add to Wish List

Qty

Sale - Save 15%

$ 66.99

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

$ 56.94 USD

Add to Wish List

Faulty camshaft sensors can lead to a number of issues such as hard starts, stalling at low speeds, and check engine (SES) lights. Restore your BMW's smooth operation and reliability by replacing it with a high-quality camshaft sensor from Bav Auto! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

Eccentric Shaft Sensor Kit

T#:15677508

Part#: 11127581215-KT

In Stock

Sale - Save 18% $ 270.16

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

$ 221.57 USD

Add to Wish List

Qty

Sale - Save 18%

$ 270.16

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

$ 221.57 USD

Add to Wish List

The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Often caused by oil getting into the connection for the wiring harness and damaging the sensor and causing a check engine light. With this kit you get the the sensor along with new valve cover and eccentric shaft adjuster gaskets to ensure a complete leak free job.

Show More Show Less

Eccentric Shaft Sensor Kit

T#:5416787

Part#: 11377524879TMSKT

In Stock

Sale - Save 18% $ 270.99

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

$ 221.57 USD

Add to Wish List

Qty

Sale - Save 18%

$ 270.99

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

$ 221.57 USD

Add to Wish List

Includes a new sensor as well as valve cover and eccentric gaskets for a complete service. The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Often caused by oil getting into the connection for the wiring harness and damaging the sensor and causing a check engine light. With this kit you get the the sensor along with new valve cover and eccentric shaft adjuster gaskets to ensure a complete leak free job.

Show More Show Less

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

Add to Wish List

Qty

$ 261.99 USD

Add to Wish List

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.

Show More Show Less

Valvetronic Camshaft Adjuster replacement kit

T#:15677492

Part#: 11127556161-KT

In Stock

Sale - Save 19% $ 220.99

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

$ 179.20 USD

Add to Wish List

Qty

Sale - Save 19%

$ 220.99

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

$ 179.20 USD

Add to Wish List

Valv-tronic adjuster unit, Changes the the timing shaft to adjust the valve timing.

Febi Relay - Replaces White/Green

We Price Match - Give Us A Call or Chat!

T#:16375128

Part#: 61368373700

Ships on Nov 11, 2026

Sale - Save 28% $ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD

Add to Wish List

Qty

Sale - Save 28%

$ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD

Add to Wish List

This relay is often the fuel pump relay for many BMW models. To ensure the relay is correct for your car please check the pin locations

BMW Alternator - SEG Automotive 0121.715.118

T#:54851991

Part#: 12317560985

Ships in 2 Business Days

$ 1,049.99

This product was last offered at the strikethrough price on
07-16-2026

$ 949.99 USD

Add to Wish List

Qty

$ 949.99 USD

Add to Wish List

Battery Cable - With Pole

T#:54388517

Part#: 61129259425

Ships in 2 Business Days

$ 126.99 USD

Add to Wish List

Qty

$ 126.99 USD

Add to Wish List

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.

Show More Show Less

MINI Alternator - SEG Automotive 0125.711.078

T#:54851993

Part#: 12317613445

Ships in 2 Business Days

$ 564.99

This product was last offered at the strikethrough price on
07-16-2026

$ 509.99 USD

Add to Wish List

Qty

$ 509.99 USD

Add to Wish List

MINI Alternator - SEG Automotive 0124.325.157

T#:54851988

Part#: 12317550319

Ships in 2 Business Days

$ 473.99

This product was last offered at the strikethrough price on
07-16-2026

$ 430.99 USD

Add to Wish List

Qty

$ 430.99 USD

Add to Wish List

BMW Starter - SEG Automotive 0001.108.460

T#:55857741

Part#: 12417610344

Ships in 2 Business Days

$ 368.99

This product was last offered at the strikethrough price on
07-16-2026

$ 330.99 USD

Add to Wish List

Qty

$ 330.99 USD

Add to Wish List

BMW Alternator - SEG Automotive 0124.525.588

T#:54851984

Part#: 12317541694

Ships in 2 Business Days

$ 521.99

This product was last offered at the strikethrough price on
07-16-2026

$ 468.99 USD

Add to Wish List

Qty

$ 468.99 USD

Add to Wish List

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

T#:51813310

Part#: VTT-FAB-HC

Ships in 10 Business Days

$ 49.99 USD

Add to Wish List

Qty

$ 49.99 USD

Add to Wish List

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

BMW Alternator - SEG Automotive 0124.515.223

T#:54851980

Part#: 12317519618

Ships in 2 Business Days

$ 503.99

This product was last offered at the strikethrough price on
07-16-2026

$ 453.99 USD

Add to Wish List

Qty

$ 453.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 59.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 209.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 37.99 USD

Add to Wish List

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

Knock Sensor

T#:55353615

Part#: 12141716055

Special Order: No Guaranteed ETA

$ 28.99 USD

Add to Wish List

Qty

$ 28.99 USD

Add to Wish List

This Meyle replacement knock sensor is the perfect solution for keeping your high-performance engine safe and running at its absolute peak.

Morimoto Standalone Can-Bus Wiring Harness - H4 / 9003 - Priced Each ...

T#:54388428

Part#: H240

Ships on Sep 1, 2026

$ 21.99 USD

Add to Wish List

Qty

$ 21.99 USD

Add to Wish List

Crankshaft Pulse Sensor

T#:55030835

Part#: 3148100018

Ships on Oct 30, 2026

$ 15.99 USD

Add to Wish List

Qty

$ 15.99 USD

Add to Wish List

Keep your ultimate driving machine running the way it was engineered to with this reliable replacement.

Crankshaft Position Sensor

T#:55030834

Part#: 3148100013

Ships on Oct 30, 2026

$ 36.99 USD

Add to Wish List

Qty

$ 36.99 USD

Add to Wish List

This Meyle Crankshaft Position Sensor is the perfect solution for restoring the critical engine speed data your ECU relies on.

Crankshaft Position Sensor

T#:56254775

Part#: 13627582842

Special Order: No Guaranteed ETA

$ 19.99 USD

Add to Wish List

Qty

$ 19.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 52.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 95.99 USD

Add to Wish List

Reliable German replacement sensor keeps your BMW oil levels monitored.

Starter Motor

T#:56544032

Part#: 12412354701

Special Order: No Guaranteed ETA

$ 146.99 USD

Add to Wish List

Qty

$ 146.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 14.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 87.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 90.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 245.99 USD

Add to Wish List

Trust Febi Bilstein for clean power output and dependable performance every time you start your engine.

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

T#:639833

Part#: 13621433076

In Stock

Sale - Save 20% $ 14.99

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

$ 11.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 14.99

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

$ 11.99 USD

Add to Wish List

This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

Starter Motor

T#:56724716

Part#: 12412354693

Special Order: No Guaranteed ETA

$ 147.99 USD

Add to Wish List

Qty

$ 147.99 USD

Add to Wish List

This Febi Bilstein starter motor delivers the cranking performance your BMW needs for instant ignition response every time you turn the key.

Meyle Exhaust Camshaft Position Sensor - BMW S54 S62

T#:55497462

Part#: 3148000038

Ships on Nov 12, 2026

$ 26.99 USD

Add to Wish List

Qty

$ 26.99 USD

Add to Wish List

Don't let a failing camshaft position sensor rob your vehicle of power or cut your track day short. This Meyle replacement camshaft sensor is built to deliver fast, highly accurate data to the ECU, preventing the performance drops, sluggish throttle response, and rough idling caused by worn-out factory electronics. Engineered to withstand high underhood heat and intense vibrations, it keeps your ignition timing and fuel delivery tightly synced, whether you are daily driving or pushing through high-RPM pulls.

Show More Show Less

Meyle Crankshaft Pulse Sensor - BMW EXX, FXX

T#:52762518

Part#: 314810014

Special Order: No Guaranteed ETA

$ 19.99 USD

Add to Wish List

Qty

$ 19.99 USD

Add to Wish List

Revitalize your vehicle’s performance and reliability with the MEYLE Crankshaft Pulse Sensor.

Oil Temperature Sensor And Gauge Kit - Blue & Red - Multiple BMWs ...

T#:401689

Part#: OILTEMPGAUGEBRKK

Ships on Dec 24, 2026

Sale - Save 2% $ 196.99

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

$ 193.26 USD

Add to Wish List

Qty

Sale - Save 2%

$ 196.99

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

$ 193.26 USD

Add to Wish List

The EVO series from ProSport Gauges is an award winning, industry leading option for those looking to push their car's limits. They allowing you to monitor crucial engine functions in one quick glance with advanced precision. Featuring a dual color readout, you can customize your readout to your liking. Offering a user friendly readout with a digital reading in the center with a bar-graph style sweep around the gauge as well.

Show More Show Less

Meyle Camshaft Position Sensor - BMW i3

T#:52762526

Part#: 3148100005

Special Order: No Guaranteed ETA

$ 30.99 USD

Add to Wish List

Qty

$ 30.99 USD

Add to Wish List

The MEYLE Camshaft Position Sensor restores the "timing" of your engine, ensuring your fuel is injected at the perfect millisecond.

MEYLE Crank Position Sensor - BMW E46, E90

T#:52621846

Part#: MPS0126

Special Order: No Guaranteed ETA

$ 29.99 USD

Add to Wish List

Qty

$ 29.99 USD

Add to Wish List

The Meyle MPS0126 Crankshaft Position Sensor is a robust replacement for aging or failing factory sensors that often trigger P0335 or P0339 trouble codes.

Oil Pressure Sensor

T#:55857763

Part#: 12615B4C892

Special Order: No Guaranteed ETA

$ 23.99 USD

Add to Wish List

Qty

$ 23.99 USD

Add to Wish List

Protect your ultimate driving machine from disastrous lubrication failures with the Febi Bilstein Oil Pressure Sensor.

Meyle Crank Position Sensor - E36, E34

T#:55497425

Part#: 3148998003

Special Order: No Guaranteed ETA

$ 25.99 USD

Add to Wish List

Qty

$ 25.99 USD

Add to Wish List

Don't let a basic sensor keep your E36 or E34 off the tarmac—swap in this high-quality Meyle unit and drive with confidence.

Crankshaft Position Sensor

T#:56254756

Part#: 13627809334

Special Order: No Guaranteed ETA

$ 46.99 USD

Add to Wish List

Qty

$ 46.99 USD

Add to Wish List

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

Add to Wish List

Qty

$ 89.00 USD

Add to Wish List

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.

Show More Show Less

Oil Level Sensor

T#:56724736

Part#: 12615A740A2

Special Order: No Guaranteed ETA

$ 47.99 USD

Add to Wish List

Qty

$ 47.99 USD

Add to Wish List

Maintain strict performance reliability and safeguard your engine with the Febi Bilstein Engine Oil Level Sensor.

Project Cars

SELECT YOUR BMW

BMW Electrical Sensors, Switches, & Relays

Sub-Categories

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results