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BMW Electrical Sensors, Switches, & Relays

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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Turner Motorsport - Corporate Logo
T#:508
Part#: TEN9989M50
In Stock
Sale - Save 25% $ 89.99

This product was last offered at the strikethrough price on
06-13-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 89.99

This product was last offered at the strikethrough price on
06-13-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Made in the USA The TMS Water Temp Sensor Wiring Adaptor is needed when you are upgrading to OBD-I (1992-1995 components) on a 3.2 or 2.8 liter engine. These earlier engines use two separate water temp sensors in the head, one for the ECU and one for the instrument cluster. Most of the 3.2 and some of the 2.8 liter engines do not have two holes drilled in the head for the early water temp sensors. This is due to the fact that the 3.2 and 2.8 engines used a combined water temp sensor. So we designed a easy to use plug and play wiring harness. The benefits are: No cutting and splicing, no trying to fine plugs and pins. We also suggest using TMS "3.2 in a 3.0" Coolant Hose Adapter P/N: TEN9931007 to make your life easier.
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FAE - Corporate Logo
T#:583140
Part#: 13627525015
In Stock
$ 45.99 USD
Free Shipping on orders $49 and up
Having a crank but no starting issue? This sensor is often the culprit
FAE - Corporate Logo
T#:583144
Part#: 12141708619
Ships on Sep 8, 2026
$ 46.99 USD
Free Shipping on orders $49 and up
Referred to as the speed sensor & crankshaft position sensor

Voltage Regulator
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Valeo - Corporate Logo
T#:594108
Part#: 12317603775
Ships in 1 Business Day
$ 71.22

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

$ 70.45 USD
Free Shipping on orders $49 and up
$ 70.45 USD
Free Shipping on orders $49 and up
Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:1196078
Part#: 12318510090
Ships in 1 Business Day
$ 91.37 USD
Free Shipping on orders $49 and up
$ 91.37 USD
Free Shipping on orders $49 and up
OEM replacement for you BMW alternator fixing charging issues
Alternator
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Valeo - Corporate Logo
T#:594101
Part#: 12318570672
In Stock at Vendor
$ 1,094.99

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

$ 1,062.99 USD
Free Shipping on orders $49 and up
$ 1,062.99 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo

FAE - Corporate Logo
T#:375961
Part#: 12141726066
Ships in 1 day
$ 56.99

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

$ 55.00 USD
Free Shipping on orders $49 and up
$ 55.00 USD
Free Shipping on orders $49 and up
Having a crank but no starting issue? This sensor is often the culprit
FAE - Corporate Logo
T#:7256
Part#: 13621433076
In Stock
$ 14.99 USD
Free Shipping on orders $49 and up
This coolant / oil temperature sensor is mounted in the cylinder head and/or the oil filter housing and/or water pump/ thermostat housing. Also used as an oil temperature sensor on cars with SMG transmissions.
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FAE - Corporate Logo
T#:31092548
Part#: 61316967601
In Stock
$ 13.99 USD
Free Shipping on orders $49 and up

AUTOTECKNIC - Corporate Logo
T#:21012623
Part#: ATK-BM-0420-G87
Ships in 7 Business Days
$ 495.00 USD
Free Shipping on orders $49 and up
The boldly styled G87 already touts carbon features but carbon fiber is not very often displayed in the engine bay. If you are looking to give your engine bay some carbon spark, AUTOTECKNIC introduces you to their dry carbon battery terminal cover to beautify your engine bay and bring a smile to your face every time you open the hood of your S58 monster! Made from high-quality carbon, this product is sure to stand the test of time!
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Remanufactured Alternator - 170A
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Valeo - Corporate Logo
T#:594098
Part#: 12317802929
Ships on Sep 1, 2026
$ 541.55 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo
FAE - Corporate Logo
T#:596540
Part#: 13621739510
Ships on Sep 1, 2026
$ 12.99 USD
Free Shipping on orders $49 and up
Monitors intake air temperature
FAE - Corporate Logo
T#:16202
Part#: 61311354274
Ships on Sep 9, 2026
$ 7.13 USD
Free Shipping on orders $49 and up
OIL PRESSURE SWITCH

MINI N14 N18 Alternator - 120 Amp 439617
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Valeo - Corporate Logo
T#:28803228
Part#: 12317619254
Ships on Sep 9, 2026
$ 374.99 USD
Free Shipping on orders $49 and up

MINI N14 N18 Alternator is an essential component for powering the electrical system of your Mini. Engineered to provide reliable performance, this alternator ensures your Mini stays running smoothly. Upgrade your Mini with this genuine alternator for dependable power generation.

  • Powers the electrical system
  • Reliable performance
  • Ensures smooth operation
  • Genuine Mini part
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FAE - Corporate Logo
T#:374049
Part#: 12617568480
Back Ordered
$ 7.99 USD
Free Shipping on orders $49 and up
Leaking or malfunctioning oil pressure switches can be disastrous
FAE - Corporate Logo
T#:377029
Part#: 12612367061
Back Ordered
$ 5.99 USD
Free Shipping on orders $49 and up
Leaking or malfunctioning oil pressure switches can be disastrous

Alternator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594102
Part#: 12311247288
Back Ordered
$ 547.99

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

$ 389.23 USD
Free Shipping on orders $49 and up
$ 389.23 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo