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BMW Electrical Sensors, Switches, & Relays for BMW F83 M4 S55 3.0L

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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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OEM Bosch Mass Air Flow Sensor (MAF) -- N20 N26 S55 S63 B38 B46 Z4 ...

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T#:389744

Part#: 13627602038

In Stock

$ 246.99

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

$ 244.99 USD

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$ 244.99 USD

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The mass air flow sensor measures the amount of air flow to tell the computer how much fuel to add to the mixture. If the MAF sensor malfunctions, there could be too much or too little fuel added to the mixture.

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Precision Raceworks Ethanol Sensor Breakout Harness

T#:35559424

Part#: 201-0411

In Stock

$ 34.99 USD

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$ 34.99 USD

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n Ethanol Sensor Breakout Harness provides a clean wiring solution by splitting the signal from your ethanol content sensor between two analyzers, such as an ECU/controller and a gauge or Bluetooth display, without modifying your existing harness.his setup enables real-time ethanol level monitoring and facilitates comprehensive DME/ECU adjustments for enhanced automotive performance.citeturn0search0

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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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Bosch Remanufactured Starter Motor - BMW N55 S55 3.0L

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T#:40004862

Part#: SR9521XKT

In Stock at Vendor

$ 465.99

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

$ 454.99 USD

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$ 454.99 USD

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The advertised price includes a refundable $78 core charge If your car won't turn over, there is a good chance your starter is shot. Bosch's OEM starter is a high quality replacement that will give you peace of mind thanks to its long life-span. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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15A Fuse - Priced Each

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T#:375327

Part#: 61131372626

In Stock at Vendor

$ 2.03 USD

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$ 2.03 USD

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Battery Tender Plus Advanced Battery Charging System

T#:49892371

Part#: BTT0210128

In Stock at Vendor

$ 69.99 USD

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$ 69.99 USD

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Denso Starter Motor - BMW N55 S55 3.0L

T#:40004863

Part#: 12417631559

In Stock at Vendor

$ 461.99

This product was last offered at the strikethrough price on
05-04-2026

$ 390.99 USD

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$ 390.99 USD

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If your car won't turn over, there is a good chance your starter is shot. Denso's OEM starter is a high quality replacement that will give you peace of mind thanks to its long life-span.

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.

Battery Cable - With Pole

T#:54388517

Part#: 61129259425

In Stock at Vendor

$ 126.99 USD

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$ 126.99 USD

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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.

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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.

Wire With Terminals For 90 Degree 6 Pin Bulkhead (Red)

T#:38161695

Part#: 201-0360-RED

Ships in 6 Business Days

$ 5.99 USD

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$ 5.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Red in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead (White)

T#:38161693

Part#: 201-0360-WHT

Ships in 9 Business Days

$ 4.99 USD

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$ 4.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. White in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead - Blue

T#:38161703

Part#: 201-0360-BLU

Ships in 9 Business Days

$ 4.99 USD

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$ 4.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Blue in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead (Black) 12 Gauge ...

T#:38161711

Part#: 201-0360-BLK

Ships in 9 Business Days

$ 4.99 USD

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$ 4.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Black in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead - Yellow

T#:38161692

Part#: 201-0360-YEL

Ships in 9 Business Days

$ 4.99 USD

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$ 4.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Yellow in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead - Black - Dual 18 Ga...

T#:38161710

Part#: 201-0362

Ships in 9 Business Days

$ 4.99 USD

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$ 4.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Black in color and 18 Gauge dual wire.

Wire With Terminals For 90 Degree 6 Pin Bulkhead - Orange

T#:38161698

Part#: 201-0360-ORG

Ships in 9 Business Days

$ 4.99 USD

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$ 4.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Orange in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead (Green)

T#:38161687

Part#: 201-0361-GRN

Ships in 9 Business Days

$ 3.99 USD

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$ 3.99 USD

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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Green in color and 18 Gauge.

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

T#:54388428

Part#: H240

Ships on Aug 7, 2026

$ 21.99 USD

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$ 21.99 USD

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