BMW Electrical Sensors, Switches, & Relays for BMW 6 Series F12 (2012+)

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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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B58 Performance Ignition Coil Conversion Kit - Late N55
For Vehicles with a Production Date from 01/2011
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:45210311
Part#: 051421LA01
Ships on Nov 23, 2026
Sale - Save 5% $ 458.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 436.04 USD
Free Shipping
Sale - Save 5%
$ 458.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 436.04 USD
Free Shipping

Transform your N55-powered BMW with the Turner Motorsport B58 Ignition Coil Conversion Kit—the ultimate solution for ignition system reliability and performance. Designed to eliminate the notorious misfires and power loss caused by factory OE pencil-style ignition coils, this kit is a game-changer for stock and modified vehicles alike. Whether you're chasing more power or improved drivability, the B58 ignition coils deliver up to 2.3x more spark energy, unleashing the full potential of your engine.

Why upgrade? The answer is simple: B58 ignition coils outperform all other ignition upgrades on the market with unparalleled spark energy and reliability. Ideal for high-performance builds or daily drivers, this kit eliminates common ignition problems while supporting increased power demands from software tunes like MHD or BM3. Plus, with the included plug-and-play wiring harness and proprietary boots, installation is seamless—no cutting or splicing is required.

Features:

Up to 2.3x More Spark Energy: Maximizes overall performance, offering sufficient output for heavily modified engines. Plug-and-Play Installation: Includes custom brackets, wiring harnesses, and boots designed for factory mounting locations—no modifications needed. DME Compatibility: Compatible with factory engine management software for hassle-free integration. Rugged Durability: Bolt-on brackets are precision-machined from 6061-T6 aluminum with a sleek black anodized finish for a premium look and long-lasting performance. Proprietary Design: Boots feature a built-in 1k OHM resistor to prevent electrical contact failures commonly seen in other kits. Kit Contents:

(6) Turner Motorsport B Series Ignition Coils for N554/N55 (6) Turner Motorsport B58 Ignition Coil Conversion Wiring Adapters (3) Turner Motorsport B58 Ignition Coil Conversion Brackets Optional Kit Selections:

Spark Plugs: Bosch ZGR6STE2 (OEM) NGK 97506 (One Step Colder) Spark Plug Socket: Schwaben 14mm 12pt Magnetic Socket Schwaben 14mm 12pt Swivel Socket Turner Motorsport offers a comprehensive installation guide, including detailed removal instructions and high-resolution images.

Say goodbye to misfires and hello to unparalleled ignition performance with the Turner Motorsport B58 Ignition Coil Conversion Kit. Designed with precision and engineered for reliability, it’s the ultimate upgrade for your N55-powered BMW!

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B58 Performance Ignition Coil Conversion Kit - Early N55
For Vehicles Produced Before 01/2011
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:36235522
Part#: 053681LA
In Stock
Sale - Save 10% $ 458.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 413.09 USD
Free Shipping
Sale - Save 10%
$ 458.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 413.09 USD
Free Shipping

Transform your N55-powered BMW with the Turner Motorsport B58 Ignition Coil Conversion Kit—the ultimate solution for ignition system reliability and performance. Designed to eliminate the notorious misfires and power loss caused by factory OE pencil-style ignition coils, this kit is a game-changer for stock and modified vehicles alike. Whether you're chasing more power or improved drivability, the B58 ignition coils deliver up to 2.3x more spark energy, unleashing the full potential of your engine.

Why upgrade? The answer is simple: B58 ignition coils outperform all other ignition upgrades on the market with unparalleled spark energy and reliability. Ideal for high-performance builds or daily drivers, this kit eliminates common ignition problems while supporting increased power demands from software tunes like MHD or BM3. Plus, with the included plug-and-play wiring harness and proprietary boots, installation is seamless—no cutting or splicing is required.

Features:

Up to 2.3x More Spark Energy: Maximizes overall performance, offering sufficient output for heavily modified engines. Plug-and-Play Installation: Includes custom brackets, wiring harnesses, and boots designed for factory mounting locations—no modifications needed. DME Compatibility: Compatible with factory engine management software for hassle-free integration. Rugged Durability: Bolt-on brackets are precision-machined from 6061-T6 aluminum with a sleek black anodized finish for a premium look and long-lasting performance. Proprietary Design: Boots feature a built-in 1k OHM resistor to prevent electrical contact failures commonly seen in other kits. Kit Contents:

(6) Turner Motorsport B58 Ignition Coils (6) Turner Motorsport B58 Ignition Coil Conversion Boots (6) Turner Motorsport B58 Ignition Coil Conversion Wiring Harnesses (3) Turner Motorsport B58 Ignition Coil Conversion Brackets Optional Kit Selections:

Spark Plugs: Bosch ZGR6STE2 (OEM) NGK 97506 (One Step Colder) Spark Plug Socket: Schwaben 14mm 12pt Magnetic Socket Schwaben 14mm 12pt Swivel Socket Turner Motorsport offers a comprehensive installation guide, including detailed removal instructions and high-resolution images. Visit the Installation Tab for the step-by-step guide to completing your ignition system upgrade.

Say goodbye to misfires and hello to unparalleled ignition performance with the Turner Motorsport B58 Ignition Coil Conversion Kit. Designed with precision and engineered for reliability, it’s the ultimate upgrade for your N55-powered BMW!

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Bosch - Corporate Logo
T#:389744
Part#: 13627602038
Ships in 2 Business Days
$ 247.99

This product was last offered at the strikethrough price on
08-03-2026

$ 209.99 USD
Free Shipping
$ 209.99 USD
Free Shipping
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 - Corporate Logo
T#:36032311
Part#: 13628644433
Ships in 2 Business Days
$ 72.99 USD
Free Shipping on orders $49 and up
$ 72.99 USD
Free Shipping on orders $49 and up
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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Integrated Power Supply Module
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37757285
Part#: 12638645514
In Stock
$ 198.09

This product was last offered at the strikethrough price on
06-10-2026

$ 169.99 USD
Free Shipping on orders $49 and up
$ 169.99 USD
Free Shipping on orders $49 and up
Located on top of the battery
Crankshaft Position Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:35863159
Part#: 13627525015
In Stock
$ 28.99 USD
Free Shipping on orders $49 and up
Having a crank but no starting issue? This sensor is often the culprit

Bosch - Corporate Logo
T#:40004862
Part#: SR9521XKT
Ships in 2 Business Days
$ 465.99

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

$ 436.99 USD
Free Shipping on orders $49 and up
$ 436.99 USD
Free Shipping on orders $49 and up
The advertised price includes a refundable $60 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 - Corporate Logo
T#:639677
Part#: 12317591530BKT
Back Ordered
$ 660.99

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

$ 480.60 USD
Free Shipping
$ 480.60 USD
Free Shipping
*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!
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Electrical Connector - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:367145
Part#: 61132359999
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
2 pin used in many locations on late model BMWs

Oil Pressure Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:591998
Part#: 12617592532
In Stock
$ 49.00 USD
Free Shipping on orders $49 and up
Used to indicate the oil pressure in the housing. URO aftermarket version.
Temperature Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37892090
Part#: 13621433076
In Stock
$ 10.34 USD
Free Shipping on orders $49 and up
Temperature sensor for monitoring coolant and oil
Outdoor Temperature Sensor / Probe
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373239
Part#: 65816905133
In Stock
$ 13.99 USD
Free Shipping on orders $49 and up
Common fix for incorrect OBC temperature readings


URO Positive Battery Cable
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:42436714
Part#: 61129217036
Ships in 2 Business Days
$ 140.99 USD
Free Shipping on orders $49 and up
$ 140.99 USD
Free Shipping on orders $49 and up
If your battery cable is damaged, this is the direct factory replacement you’ll need to restore proper function.
Bosch - Corporate Logo
T#:375327
Part#: 61131372626
Ships in 2 Business Days
$ 2.03 USD
Free Shipping on orders $49 and up
Bushing Contact With Wire Lead - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:14783536
Part#: 61130005199
Back Ordered
$ 3.99 USD
Free Shipping on orders $49 and up

URO Crankshaft Position Sensor - BMW N63N S63N S63R
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:43750199
Part#: 13627628741
In Stock
$ 55.99 USD
Free Shipping on orders $49 and up
Crank position sensors report the position of the crankshaft to the ECU/DME to control iginition timing. A bad crank position sensor will commonly cause a no-start situation as faulty readings could lead to engine damage.
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Hitachi - Corporate Logo
T#:48815454
Part#: 13627525014
Ships in 7 Business Days
$ 40.00 USD
Free Shipping on orders $49 and up
The camshaft position sensor communicates the position of the camshaft to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the cam position sensor.
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Hitachi - Corporate Logo
T#:48850074
Part#: 13627582842
Ships in 7 Business Days
$ 184.99 USD
Free Shipping on orders $49 and up
Engine cranks but doesn't start? This sensor is often the issue.

Walker - Corporate Logo
T#:39059258
Part#: 13627843531
Ships in 2 Business Days
$ 139.99

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

$ 135.99 USD
Free Shipping on orders $49 and up
$ 135.99 USD
Free Shipping on orders $49 and up
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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Hitachi - Corporate Logo
T#:48815471
Part#: 13627525015
Ships in 7 Business Days
$ 66.99 USD
Free Shipping on orders $49 and up
The crankshaft position sensor transmits the crankshaft's position to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the crank position sensor.
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Bosch - Corporate Logo
T#:639763
Part#: 12317616121BKT
Ships on Nov 5, 2026
$ 558.99 USD
Free Shipping on orders $49 and up
$ 558.99 USD
Free Shipping on orders $49 and up
*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 - Corporate Logo
T#:639671
Part#: 12317603782BKT
Ships in 2 Business Days
$ 690.99 USD
Free Shipping
$ 690.99 USD
Free Shipping
*Price includes a refundable $75 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!
Show More Show Less
Bosch - Corporate Logo
T#:57304035
Part#: SR3295N
Special Order: No Guaranteed ETA
New Item
$ 441.99 USD
Free Shipping on orders $49 and up
This new starter delivers crisp power and rapid engine speed recovery, avoiding the typical voltage drop issues associated with worn original units.
Bosch - Corporate Logo
T#:639737
Part#: 12417618620BKT
Ships on Nov 5, 2026
$ 386.99

This product was last offered at the strikethrough price on
05-08-2026

$ 355.99 USD
Free Shipping on orders $49 and up
$ 355.99 USD
Free Shipping on orders $49 and up
*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! ​ Bosch Part Numbers: SR9523X, 0986UR1770 Replaces the following BMW part numbers: 12417612815, 12417618620
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Bosch - Corporate Logo
T#:639655
Part#: 12417577257KT
Ships on Nov 5, 2026
$ 618.99 USD
Free Shipping
$ 618.99 USD
Free Shipping
*Price includes a refundable $120 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!
Show More Show Less
Bosch - Corporate Logo
T#:57267768
Part#: 12317616126
Special Order: No Guaranteed ETA
New Item
$ 571.99 USD
Free Shipping on orders $49 and up
Keep your BMW's vital electronics powered and your engine running at peak efficiency with a premium remanufactured alternator from Bosch.
Mass Air Flow Sensor (MAF) 0280218266
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:48125822
Part#: 13627602038
In Stock
$ 90.99 USD
Free Shipping on orders $49 and up