BMW Electrical Sensors, Switches, & Relays for BMW 5 Series E34 (1987-1995)

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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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Hitachi Voltage Regulator - BMW E31 E32 E34 E36
For vehicles with compact alternator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48850064
Part#: 12311747920
Ships in 6 Business Days
New Item
$ 37.99 USD
Free Shipping on orders $49 and up
$ 37.99 USD
Free Shipping on orders $49 and up
This voltage regulator is a crucial component that controls the alternator's output, preventing overcharging by adjusting the current to maintain a safe range of vehicle voltage, thereby protecting the battery and electrical system. Symptoms of failure include dim lights, battery warnings, or a dead battery, often requiring replacement, which can be internal or external to the alternator.
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Meyle Crankshaft Position Sensor - M60
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5958675
Part#: 12141731887
Ships on Nov 11, 2026
$ 59.99 USD
Free Shipping on orders $49 and up
Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. The crankshaft position sensor measures the speed at which the crank is turning and adjusts fueling via the ECU to match. If it fails, your computer will not know the speed and will fuel it improperly. Installs exactly in the place of your old sensor and will eliminate your car's idle, performance, and misfiring problems.
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Coolant Temperature Sensor
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5958757
Part#: 12621747281
Special Order: No Guaranteed ETA
$ 12.99 USD
Free Shipping on orders $49 and up
MEYLE-ORIGINAL: True to OE coolant temperature sensor. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 12621747281 12621710535
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Meyle Crank Position Sensor - E36, E34
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Meyle - Corporate Logo
T#:55497425
Part#: 3148998003
Special Order: No Guaranteed ETA
New Item
$ 25.99 USD
$ 25.99 USD
Don't let a basic sensor keep your E36 or E34 off the tarmac—swap in this high-quality Meyle unit and drive with confidence.

Hitachi Voltage Regulator - BMW E36 Z3 E34
For 100A Valeo alternators
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48850070
Part#: 12321739435
Back Ordered
New Item
$ 60.99 USD
Free Shipping on orders $49 and up
$ 60.99 USD
Free Shipping on orders $49 and up
Alternator voltage regulators are a crucial component that controls the alternator's output, preventing overcharging by adjusting the current to keep vehicle voltage within a safe range, protecting the battery and electrical system. Symptoms of failure include dim lights, battery warnings, or a dead battery, often requiring replacement, which can be internal or external to the alternator
Show More Show Less