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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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BMW E6X / E8X / E9X - N52 Replacement Starter Kit
BMW E6X / E8X / E9X - N52 Replacement Starter Kit
Packaged by Turner - Corporate Logo
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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Sale - Save 8%
$ 296.99

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

$ 273.79 USD
Free Shipping on orders $49 and up
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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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Camshaft Position Sensor - Intake
Camshaft Position Sensor - Intake
Bremi - Corporate Logo
T#:34683819
Part#: 12147539165
Ships in 2 Business Days
$ 49.99

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

$ 44.99 USD
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$ 44.99 USD
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Bremi Camshaft Position Sensor - Intake is an essential component for optimizing your BMW’s engine timing and performance. Manufactured by Bremi and available through Turner Motorsport, this high-quality intake camshaft position sensor precisely monitors the camshaft’s rotation and communicates critical data to the engine control unit. By ensuring accurate timing for the intake valves, this sensor helps maintain optimal fuel efficiency, smooth idling, and reduces emissions. Replacing a faulty camshaft position sensor can prevent common engine issues such as misfires, stalling, or rough idling.

The Bremi Camshaft Position Sensor - Intake meets OEM specifications, providing a reliable, durable solution that’s designed to withstand high temperatures and vibration for long-lasting performance.

Benefits:

Improves Engine Timing: Provides precise timing data for smooth, responsive engine performance Enhances Fuel Efficiency: Optimizes fuel use, saving on fuel costs and reducing environmental impact Reduces Emissions: Helps maintain cleaner combustion and lowers vehicle emissions Prevents Engine Issues: Minimizes risk of misfires, rough idling, and stalling, prolonging engine life Easy to Install: Direct fit for BMW models, making replacement quick and hassle-free Bremi Camshaft Position Sensor - Intake is the perfect choice to maintain your BMW’s high performance and reliability.

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Eccentric Shaft Sensor Kit
Eccentric Shaft Sensor Kit
Packaged by Turner - Corporate Logo
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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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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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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Valvetronic Camshaft Adjuster replacement kit
Valvetronic Camshaft Adjuster replacement kit
Packaged by Turner - Corporate Logo
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
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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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Valv-tronic adjuster unit, Changes the the timing shaft to adjust the valve timing.
Bremi Crankshaft Sensor - 13627806782
Bremi Crankshaft Sensor - 13627806782
Bremi - Corporate Logo
T#:27871806
Part#: 13627806782
Ships in 2 Business Days
$ 71.99

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

$ 63.99 USD
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$ 63.99 USD
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The crankshaft position sensor tells the computer whether the timing is correct in the engine. Symptoms such as no start or extended cranking times can be a telltale sign that you need to replace your crankshaft positioning sensor that is either faulty or damaged.
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Crankshaft Position Sensor
Crankshaft Position Sensor
Bremi - Corporate Logo
T#:2027109
Part#: 13627639278
Ships in 1 Business Day
$ 45.99

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

$ 40.99 USD
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$ 40.99 USD
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Camshaft Sensor
Camshaft Sensor
Bremi - Corporate Logo
T#:590416
Part#: 12141485845
In Stock at Vendor
$ 45.98

This product was last offered at the strikethrough price on
07-15-2026

$ 42.05 USD
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$ 42.05 USD
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AAF Oil Pressure Sensor Relocate Kit - M20
AAF Oil Pressure Sensor Relocate Kit - M20
Advanced Auto Fabrication - Corporate Logo
T#:7593105
Part#: 116177
Ships in 3 Business Days
$ 71.99 USD
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$ 71.99 USD
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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF's Oil Pressure Sensor Relocation Kit allows for an aftermarket low pressure switch as well as oil pressure sensor, or two 1/8' NPT pressure sensors to be installed. This can allow a gauge or light to be on the dash and still log oil pressure in a data logger. This kit also moves the oil pressure sensor away from the engine and onto the chassis (or any other spot) where is it much easier to access, or install larger size diameter sensors. Fits all M20 Engines. Features: 4AN Stainless Steel Braided Line Banjo Bolt and Fitting (installs onto block) 3 Way 1/8' NPT Tee Fitting, for hose from block and 2 sensors. Note: This kit does not come with sensors – the factory low pressure switch can NOT be used. An aftermarket 1/8″ NPT low pressure switch can be used with the factory wire.
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Mass Air Flow Sensor
Mass Air Flow Sensor
Bremi - Corporate Logo
T#:47644906
Part#: 13627593624
Ships in 2 Business Days
$ 193.99

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

$ 173.99 USD
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$ 173.99 USD
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AAF Jump Post Relocation Bracket - E46
AAF Jump Post Relocation Bracket - E46
Advanced Auto Fabrication - Corporate Logo
T#:7608844
Part#: 11648
In Stock at Vendor
$ 28.99 USD
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$ 28.99 USD
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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. The AAF E46 Jump Post Relocation Bracket makes it easy to adjust camber/caster on your race car by getting the factory jump post out of the way! In race car applications, the desired camber and caster settings can cause the strut tops and shock adjusters to interfere with the factory jump post. This kit takes just a few minutes to install and makes using strut braces and adjusting camber plates just that much safer and faster.
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Voltage Regulator
Voltage Regulator
Beru - Corporate Logo
T#:596879
Part#: 12321350052
In Stock at Vendor
$ 41.99

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

$ 40.99 USD
Free Shipping on orders $49 and up
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$ 40.99 USD
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If you are having issues with voltage peaking, lights fading in and out as your driving, or your battery keeps dying despite the car running, It could be the result of a faulty voltage regulator. Voltage regulators control the amount of power coming from the alternator.
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