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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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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

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Sale - Save 19%

$ 220.99

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

$ 179.20 USD

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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

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Qty

Sale - Save 8%

$ 296.99

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

$ 273.79 USD

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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.

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Exhaust Camshaft Sensor - E46 E39 E38 E60 E63 E65 X3 X5 Z3 Z4 ...

T#:338260

Part#: 12147518628HK

In Stock

Starting at $ 79.98 USD

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Starting at $ 79.98 USD

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This is the exhaust cam position sensor for cars with M52, M54, N62 engines. Choose either Genuine BMW or Hella brand. Hella manufactures the highest quality parts and is an OEM supplier to BMW. Includes BMW part numbers 12147518628 and 12141748398. Replaces BMW part number 12141438082.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 545i
2004-2005 E63 BMW 645ci
2002-2005 E65 BMW 745i 745li
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2004-2006 E53 BMW X5 4.4i 4.8i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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Crankshaft Position Sensor

T#:6366585

Part#: 12141721861

In Stock

$ 64.11

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

$ 57.99 USD

Limited Qty Sale

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$ 64.11

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

$ 57.99 USD

Limited Qty Sale

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Facet Crankshaft Position Sensor - E28, E30, E34

T#:554187

Part#: 12141720856

Ships in 1 Business Day

$ 45.99 USD

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$ 45.99 USD

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Having a crank but no starting issue? This sensor is often the culprit

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

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Qty

Sale - Save 18%

$ 270.16

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

$ 221.57 USD

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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.

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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

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Qty

Sale - Save 18%

$ 270.99

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

$ 221.57 USD

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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.

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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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Facet Engine Crankshaft Position Sensor - E24, E32, E34

T#:1195883

Part#: 12141720857

Ships in 1 Business Day

$ 77.99

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

$ 68.99 USD

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$ 68.99 USD

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Measures the speed and position of your engine's crankshaft.

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.

Facet Engine Crankshaft Position Sensor - E31, E32

T#:591363

Part#: 12141720291

Ships in 2 Business Days

$ 75.99

This product was last offered at the strikethrough price on
05-07-2026

$ 66.99 USD

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$ 66.99 USD

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Measures the speed and position of your engine's crankshaft.

Facet Crankshaft Position Sensor - E36

T#:378157

Part#: 12141247259

Ships in 2 Business Days

$ 70.00

This product was last offered at the strikethrough price on
05-07-2026

$ 62.99 USD

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$ 62.99 USD

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Having a crank but no starting issue? This sensor is often the culprit

Crankshaft Position Sensor - E34 535i E32 735i 735il

T#:1119

Part#: 12141720853

Ships in 2 Business Days

$ 63.99 USD

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$ 63.99 USD

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This crank shaft position sensor provides the ECU with the engine speed signal. It fits BMW E34 535i 1989-1991 E32 735i 735il 1988-1993 with M30 engine

Facet produces all of the goods they sell to be the best they can be in their market, while still remaining customer and environmentally focused. Since 1946 this company has delivered high-quality replacement auto parts by starting with extremely high quality raw materials and employing the most up to date automated manufacturing processes.

This item fits the following BMWs:
1989-1993 E34 BMW 535i
6/1987-1989 E24 BMW 633csi 635csi M6
1988-1993 E32 BMW 735i 735il

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Facet MAP Sensor - BMW N20 N26 S55 S63

T#:39059259

Part#: 13627843531

In Stock at Vendor

$ 118.99

This product was last offered at the strikethrough price on
05-07-2026

$ 114.99 USD

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$ 114.99 USD

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This is a replacement Manifold Absolute Pressure sensor Located on the charge air cooler. The MAP controls the amount of fuel that goes through the injectors based on the pressure of air at the intake manifold. If your vehicle is giving you a MAP code, replace it immediately to ensure you get the best gas mileage and performance. It is common for this part to fail slowly and cause poor fuel mileage and hampered performance. When it fails, the vehicle will stutter and stall as it falls into a limp mode. One way to check if your MAP is bad is to unplug the connector before starting your car. If it idles well (compared to a previous poor idle), your MAP sensor likely needs to be replaced. If you let this maintenance part go, your fuel economy will suffer as too much fuel is going into the engine and not being burned. A great way to give your vehicle an efficiency boost.

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Facet Intake Air Temperature Sensor - BMW E9X M3 S65

T#:43885733

Part#: 13627792203

Ships in 2 Business Days

$ 28.99

This product was last offered at the strikethrough price on
05-07-2026

$ 25.99 USD

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$ 25.99 USD

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This sensor provides your BMW's control unit with intake temperature readings, enabling it to run optimally in any condition. If this sensor has failed, your BMW may be suffering from more performance loss than you realize. Replace your IAT sensor to ensure proper temperature readings and restore lost performance!

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Facet Crankshaft Position Sensor - E36,E36 M3

T#:402844

Part#: 12141726065FAC

Ships in 1-2 days

$ 47.99 USD

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$ 47.99 USD

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The Crankshaft Position Sensor measures the speed and position of the crankshaft to determine the proper fuel and timing requirement for the best performance.

This item fits the following BMW Chassis:
E36 M3,E36

Fits BMW Engines including:
M50,S50

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Facet Crankshaft Position Sensor - E36

T#:1195837

Part#: 12141734818

Ships in 1-2 days

$ 56.99

This product was last offered at the strikethrough price on
05-07-2026

$ 55.99 USD

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$ 55.99 USD

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Having a crank but no starting issue? This sensor is often the culprit

Facet Crankshaft Position Sensor - E31, E32, E34, E38

T#:387735

Part#: 12141729292

Ships in 1-2 days

$ 46.99 USD

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$ 46.99 USD

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Having a crank but no starting issue? This sensor is often the culprit

Facet Crankshaft Position Sensor - E28, E30, E34

T#:402192

Part#: 12141720852

Ships in 3 Business Days

$ 48.99 USD

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$ 48.99 USD

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Having a crank but no starting issue? This sensor is often the culprit

Camshaft Position Sensor

T#:389865

Part#: 12141740959

Ships in 3 Business Days

$ 64.99 USD

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$ 64.99 USD

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Crankshaft Position Sensor - E30 325e 325i 325is E34 525i

T#:338003

Part#: 12141720852

Ships on Nov 11, 2026

Starting at $ 108.99 USD

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Starting at $ 108.99 USD

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This crank shaft position sensor (CPS) provides the engine computer with engine speed data via the harmonic balancer. It mounts off the engine block and reads the front crank pulley to tell the engine what position the engine internals are in. This sensor is crucial for starting the car as the ECU will not allow the engine to start without this signal. It fits all M20 engines in the E30 and E34. A lot of times the sensor is covered in oil, broken from a spinning belt, or the clearance to the pulley is not correct (should be .040"). Interchangeable with #12141720856.

Brand Options:
Original BMW - more expensive but higher quality and more consistent reliability. The sensor itself has a metal housing that is more durable and will not be affected by heat as much.
Aftermarket/Overseas manufacturer - cheaper than OE BMW but less quality and potentially less consistent. Plastic housing is more susceptible to damage from heat.

This item fits the following BMWs:
1987-1991 E30 BMW 325e 325es 325i 325is 325ix 325ic
1989-1990 E34 BMW 525i

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Facet Ping Sensor

T#:1195838

Part#: 13627566785

Ships in 2 Business Days

$ 109.99

This product was last offered at the strikethrough price on
05-07-2026

$ 97.99 USD

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$ 97.99 USD

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Sometimes referred to as a knock sensor

Ping / Knock Sensor

T#:31522954

Part#: 12141487246

In Stock

$ 44.99

This product was last offered at the strikethrough price on
05-07-2026

$ 39.99 USD

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$ 39.99 USD

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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

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Qty

Sale - Save 2%

$ 196.99

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

$ 193.26 USD

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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.

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