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BMW Electrical Sensors, Switches, & Relays for BMW F80 M3 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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URO Manifold Absolute Pressure (MAP) Sensor - BMW N54 N20 N26 S55 S63...

For vehicles with a production date from 07/2018+

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T#:36032311

Part#: 13628644433

In Stock

$ 71.99 USD

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$ 71.99 USD

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The MAP sensor, or manifold absolute pressure sensor, works with the engine computer to set the fuel curve and give readings to the engine computer. If yours is faulty, it may cause improper running, rich or lean fuel curves, or other general performance issues. Replace yours with this unit to keep your engine running at full potential. For N54 applications, you will need adapter harness T#583821- This TMAP sensor is typically used in high-boost applications for the N54

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Hella Hella Horn - High Tone

T#:592707

Part#: 2768551

In Stock

$ 30.99 USD

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$ 30.99 USD

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Disc Type High-Tone, 12 V, 400 Hz with Bracket

Hella Hella Horn - Low Tone

T#:590880

Part#: 2768082

In Stock

$ 36.99 USD

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$ 36.99 USD

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Disc Type Low-Tone, 12 V, 335 Hz with Bracket

Hella Air Horn Kit

T#:592708

Part#: 3001651

In Stock at Vendor

$ 143.99

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

$ 139.99 USD

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$ 139.99 USD

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Get noticed with this air horn kit from Hella!

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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Liqui-Moly Battery Clamp Grease - 50 grams

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T#:1195997

Part#: 20244

In Stock

14% off MSRP $ 7.99

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

$ 6.85 USD

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14% off MSRP

$ 7.99

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

$ 6.85 USD

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Excellent corrosion protection for your battery and other connections

Electrical Connector - Priced Each

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T#:367145

Part#: 61132359999

Ships in 1 Business Day

$ 18.99 USD

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$ 18.99 USD

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2 pin used in many locations on late model BMWs

Hella Relay

T#:592718

Part#: 965400001

Ships on Aug 7, 2026

$ 14.99 USD

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$ 14.99 USD

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12V 30A SPST relay with bracket

Hella Horn - High-Tone

T#:592716

Part#: 7424011

In Stock

$ 17.99 USD

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$ 17.99 USD

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Upgrade the sound of your BMW or MINI with the Hella Horn - High-Tone. This high-quality horn delivers a powerful and attention-grabbing sound, enhancing safety on the road. Designed for easy installation, it provides a quick and effective way to improve the audible presence of your vehicle.

Powerful and attention-grabbing sound
Enhances safety on the road
Easy installation for convenience
Compatible with BMW and MINI models
High-quality construction for durability

Enhance the audible presence of your BMW or MINI with the Hella Horn - High-Tone, ensuring you're heard when it matters most.

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Hella Horn - Low-Tone

T#:28869559

Part#: 7424001

In Stock

$ 17.99 USD

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$ 17.99 USD

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Universal fit. Not direct fit.

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 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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Walker MAP Sensor - BMW N20 N26 S55 S63

T#:39059258

Part#: 13627843531

In Stock at Vendor

$ 163.99

This product was last offered at the strikethrough price on
04-10-2026

$ 135.99 USD

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$ 135.99 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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Mass Air Flow Sensor (MAF)

T#:599887

Part#: 13627602038

Special Order: No Guaranteed ETA

$ 151.99 USD

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$ 151.99 USD

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Meyle Crankshaft Pulse Sensor - BMW EXX, FXX

T#:52762518

Part#: 314810014

Special Order: No Guaranteed ETA

$ 19.99 USD

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$ 19.99 USD

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

Mass Air Flow Sensor (MAF) 0280218266

T#:48125822

Part#: 13627602038

In Stock

$ 90.99 USD

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$ 90.99 USD

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Electrical System

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