Bosch BMW Electrical Sensors, Switches, & Relays for BMW 4 Series F32 (2014+)

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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

$ 240.99

This product was last offered at the strikethrough price on
05-28-2026

$ 161.99 USD

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$ 161.99 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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Bosch Alternator - 210 amp - Remanufactured - $125 refundable core ch...

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T#:580223

Part#: AL9449X

In Stock at Vendor

$ 545.99

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

$ 530.99 USD

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$ 530.99 USD

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Bosch Remanufactured Starter Motor - BMW N55 S55 3.0L

For vehicles with an Automatic Transmission

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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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Bosch New Starter Motor - E84, F30, F31, F32, F34

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:639189

Part#: 12417638195

Ships in 3 Business Days

$ 324.99

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

$ 314.99 USD

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$ 314.99 USD

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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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OEM Bosch Remanufactured Starter - SR0861X - BMW F2X F3X N20 2.0L ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:639688

Part#: 12418614519BKT

Ships on Jun 29, 2026

$ 616.99

This product was last offered at the strikethrough price on
02-14-2026

$ 431.99 USD

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$ 431.99 USD

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*Price includes a refundable $75 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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OEM Bosch Remanufactured Alternator (215 amp) - AL9450X - F22 F3X F07...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:639763

Part#: 12317616121BKT

Ships on Jun 29, 2026

$ 689.99

This product was last offered at the strikethrough price on
04-12-2026

$ 558.99 USD

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$ 558.99 USD

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*Price includes a refundable $100 Core Charge* The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator. 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! Bosch Part Numbers: AL9450X, 0986UR6231 Replaces the following BMW part numbers: 12317616119, 12317616121

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Bosch BMW Electrical Sensors, Switches, & Relays for BMW 4 Series F32 (2014+)

Sub-Categories

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

Bosch Alternator - 210 amp - Remanufactured - $125 refundable core ch...

Bosch Remanufactured Starter Motor - BMW N55 S55 3.0L

Bosch New Starter Motor - E84, F30, F31, F32, F34

15A Fuse - Priced Each

OEM Bosch Remanufactured Starter - SR0861X - BMW F2X F3X N20 2.0L ...

OEM Bosch Remanufactured Alternator (215 amp) - AL9450X - F22 F3X F07...

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