BMW Electrical Sensors, Switches, & Relays for BMW 3 Series E30 (1984-1991)

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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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Temperature Sensor
Temperature Sensor
For vehicles with production date from 09/1985
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:637028
Part#: 12621710511
Ships on Oct 14, 2026
$ 15.99 USD
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$ 15.99 USD
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Oil Temperature Sensor And Gauge Kit - Blue & Red - Multiple BMWs
Oil Temperature Sensor And Gauge Kit - Blue & Red - Multiple BMWs ...
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:401689
Part#: OILTEMPGAUGEBRKK
Back Ordered
Sale - Save 2% $ 196.99

This product was last offered at the strikethrough price on
05-03-2026

$ 193.26 USD
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Sale - Save 2%
$ 196.99

This product was last offered at the strikethrough price on
05-03-2026

$ 193.26 USD
Free Shipping
Add to Wish List
The EVO series from ProSport Gauges is an award winning, industry leading option for those looking to push their car's limits. They allowing you to monitor crucial engine functions in one quick glance with advanced precision. Featuring a dual color readout, you can customize your readout to your liking. Offering a user friendly readout with a digital reading in the center with a bar-graph style sweep around the gauge as well.
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Oil Pressure Switch
Oil Pressure Switch
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373035
Part#: 61311354274
Back Ordered
$ 3.99 USD
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$ 3.99 USD
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Make sure your vehicle is reading its oil pressure correctly with a new oil pressure switch.
Remanufactured Alternator
Remanufactured Alternator
80A
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:638838
Part#: AL46X
Special Order: No Guaranteed ETA
$ 189.99 USD
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$ 189.99 USD
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This genuine Bosch OE-remanufactured unit restores optimal 80-amp charging efficiency, guaranteeing your engine management system receives the steady voltage required for crisp throttle response and flawless operation.
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Re-manufactured Starter Motor - Priced Each
Re-manufactured Starter Motor - Priced Each
Bosch - Corporate Logo
T#:3471789
Part#: 124123547095KT
Back Ordered
$ 346.99

This product was last offered at the strikethrough price on
04-09-2026

$ 340.99 USD
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$ 340.99 USD
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Price Included a $40.00 Core Charge
Flywheel Pickup - Mounts In Bell Housing - 2 Per Car - Sold Individually - Facet
Flywheel Pickup - Mounts In Bell Housing - 2 Per Car - Sold Individua...
FAE - Corporate Logo
T#:578903
Part#: 12141710668A
Back Ordered
$ 43.99 USD
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$ 43.99 USD
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Oil Pressure Switch
Oil Pressure Switch
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:591879
Part#: 12611277642
Back Ordered
$ 1.99 USD
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$ 1.99 USD
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Your vehicle is equipped with numerous gauges to allow you to have a better idea of what is going on under the hood. By monitoring these gauges, you can prevent premature engine damage due to low oil pressure or high coolant temperatures. If one isn't functional though, you are in the dark as far as that system goes. One of the most vital is the oil pressure. Replace the sensor to get your gauge working properly again.
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