BMW Electrical Sensors, Switches, & Relays for BMW E39 M5 S62 5.0L

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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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Bosch - Corporate Logo
T#:7266
Part#: 13627568421
Ships in 2 Business Days
$ 127.99

This product was last offered at the strikethrough price on
08-13-2026

$ 110.99 USD
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$ 110.99 USD
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Knock sensors detect pings in the engine and adjust ignition timing to restore perfect operation. Faulty knock sensors will throw engine codes or even lead to engine damage. Replace your sensor with a reliable, high quality Bosch sensor to ensure proper engine ignition timing.

Bosch # 13627568421 OEM replacement for BMW part # 13627568421, 12141709317, and 12141435502.

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#:375962
Part#: 12311407440KT
Ships in 1 Business Day
$ 830.99

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

$ 318.99 USD
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$ 318.99 USD
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If your car has died on the side of the road from a dead battery and you notice flickering or low powered head lights, it's likely your alternator failing. To be sure you are getting a high quality part with a long life-span, choose this OEM Bosch Alternator. This is an OEM replacement for BMW part # 12311407440.

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!

A refundable $70.00 core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.

This item fits the following BMWs: 
1999-2003 E39 BMW M5 
 

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Genuine BMW - Corporate Logo
T#:367857
Part#: 13627568421
Ships in 3 Business Days
5% off MSRP $ 184.99

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

$ 174.99 USD
Free Shipping
5% off MSRP
$ 184.99

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

$ 174.99 USD
Free Shipping

Genuine BMW - Corporate Logo
T#:367859
Part#: 13627839138
Ships in 3 Business Days
6% off MSRP $ 296.99

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

$ 279.99 USD
Free Shipping
6% off MSRP
$ 296.99

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

$ 279.99 USD
Free Shipping

Genuine BMW - Corporate Logo
T#:1445
Part#: 13627796054
Ships in 3 Business Days
6% off MSRP $ 290.99

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

$ 273.99 USD
Free Shipping
6% off MSRP
$ 290.99

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

$ 273.99 USD
Free Shipping
Sensor for: Exhaust. One weak point on BMW engines for years has been the cam position reference sensor. On the S54 engine in the E46 M3, M Roadster, and Z4M, there is one sensor for each cam. The sensor tells the computer the position of the cam on cylinder #1. The computer relies on the sensor's information to set injection timing and VAN0S control. When a sensor goes bad, the computer loses track of what position the cam is in. While the engine will continue to run (taking its measurements from the crank position sensor), the entire system is thrown off. The engine may stumble or run rough, but not misfire, and there will be a loss of performance. Each cam sensor also doubles as a sensor for the VAN0S. So when the sensor goes bad, the VAN0S will revert to a safe mode and will not advance.

While the engine will still run with a faulty cam position sensor, it's not running in its finest tune. The DME will have fault codes related to the cam sensor or for the VAN0S. This is the Original BMW sensor with a new o-ring.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2001-2006 E46 BMW M3
1997-2003 E39 BMW M5
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
2000-2003 E52 BMW Z8 Roadster
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Genuine BMW - Corporate Logo
T#:360718
Part#: 12617508003
Ships in 3 Business Days
6% off MSRP $ 349.99

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

$ 329.99 USD
Free Shipping
6% off MSRP
$ 349.99

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

$ 329.99 USD
Free Shipping

Genuine BMW - Corporate Logo
T#:13106
Part#: 12901438062
In Stock
Sale - Save 8% $ 367.99

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

$ 340.26 USD
Free Shipping
Sale - Save 8%
$ 367.99

This product was last offered at the strikethrough price on
08-26-2026

$ 340.26 USD
Free Shipping


Genuine BMW E-Box Fan
This item fits the following BMW Chassis:
E39 M5,E53 48IS,E39,E53 X5 X5,E65,E83 X3

Fits BMW Engines including:
M54,M62,N52,N52N,N54,N62,N73,S62,N62N

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Genuine BMW - Corporate Logo
T#:141098
Part#: 61138387544
In Stock
Sale - Save 8% $ 142.99

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

$ 132.09 USD
Free Shipping
Sale - Save 8%
$ 142.99

This product was last offered at the strikethrough price on
08-26-2026

$ 132.09 USD
Free Shipping


Genuine BMW Fuse Housing 8-Fold
This item fits the following BMW Chassis:
E39 M5,E38,E39


Genuine BMW - Corporate Logo
T#:463598
Part#: 61318360459
Ships in 3 Business Days
4% off MSRP $ 69.99

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

$ 66.99 USD
Free Shipping
4% off MSRP
$ 69.99

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

$ 66.99 USD
Free Shipping

Bosch - Corporate Logo
T#:2024
Part#: SR0446X
Ships on Sep 24, 2026
$ 477.99

This product was last offered at the strikethrough price on
08-13-2026

$ 339.99 USD
Free Shipping
$ 339.99 USD
Free Shipping

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 exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

This genuine Bosch Starter motor fits the following BMWs:
1992-1994 E32 7 Series 740i, 740il
1993-1995 E34 5 Series 530i, 530i wagon, 540i
1995-2001 E38 7 Series 740i, 740il
1997-2003 E39 5 Series 540i M5
2000-2003 E53 X5 X5 4.4i X5 4.6is - M62 engine
2000-2003 Z8 Z8

 

Includes $100.00 core charge to be refunded on return of your rebuildable core.

 

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Hella - Corporate Logo
T#:2084
Part#: 13627839138
Special Order: No Guaranteed ETA
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping
This crank shaft position sensor provides the ECU with the engine speed signal. OEM Hella sensors are a perfect replacement for faulty position sensors causing poor engine operation. It is mounted in the bell housing at about the 7 o'clock postion of the transmission on most cars. This sensor fits BMW E90 E92 E93 M3, E39 540i M5, E60 M5, E63 M6, E38 740i 740il 750il 1997-2001, E31 840ci 850ci, E52 Z8.
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Genuine BMW PDC Sensor
For vehicles with production date up to 09/2001 and Schwarz color code
Genuine BMW - Corporate Logo
T#:14180
Part#: 66206989068
Ships in 6 Business Days
$ 141.99 USD
Free Shipping
$ 141.99 USD
Free Shipping


Genuine BMW Ultrasonic-Sensor - Schwarz
This item fits the following BMW Chassis:
E39 M5,E85 Z4M,E53 48IS,E39,E53 X5,E85 Z4,E86 Z4