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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Hella 5-Prong Fuel Injection Relay - E21, E23, E24, E28, E30, E34
Hella 5-Prong Fuel Injection Relay - E21, E23, E24, E28, E30, E34 ...
Hella - Corporate Logo
T#:7175
Part#: 12631708646
In Stock at Vendor
$ 21.99

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

$ 20.99 USD
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$ 20.99 USD
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This part has been superseded to BMW Part 12631708647
Hella Hella Horn - High Tone
Hella Hella Horn - High Tone
Hella - Corporate Logo
T#:592707
Part#: 2768551
In Stock
$ 30.99 USD
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$ 30.99 USD
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Disc Type High-Tone, 12 V, 400 Hz with Bracket
Reference Sensor - E23, E24, E28, E30
Reference Sensor - E23, E24, E28, E30
Hamburg Tech - Corporate Logo
T#:45483620
Part#: 12141708619
In Stock
$ 49.95 USD
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$ 49.95 USD
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Referred to as the speed sensor & crankshaft position sensor
Hella Hella Horn - Low Tone
Hella Hella Horn - Low Tone
Hella - Corporate Logo
T#:590880
Part#: 2768082
In Stock
$ 36.99 USD
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$ 36.99 USD
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Disc Type Low-Tone, 12 V, 335 Hz with Bracket
Camshaft Position Sensor
Camshaft Position Sensor
Hamburg Tech - Corporate Logo
T#:46684761
Part#: 12121722570
In Stock at Vendor
$ 114.99 USD
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$ 114.99 USD
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Ambient (Outside) Temperature Sensor
Ambient (Outside) Temperature Sensor
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:376060
Part#: 65811383204
In Stock
$ 32.99 USD
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$ 32.99 USD
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If your old, original sensor has failed, you will not get a correct temperature reading. Replace it and restore function to your BMW.
Hella Crankshaft Position Sensor - E28, E30, E34
Hella Crankshaft Position Sensor - E28, E30, E34
Hella - Corporate Logo
T#:591862
Part#: 12141720852
In Stock at Vendor
$ 118.99

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

$ 114.99 USD
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$ 114.99 USD
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Having a crank but no starting issue? This sensor is often the culprit
Hella Air Horn Kit
Hella Air Horn Kit
Hella - Corporate Logo
T#:592708
Part#: 3001651
In Stock at Vendor
$ 143.99

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

$ 139.99 USD
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$ 139.99 USD
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Get noticed with this air horn kit from Hella!
Hella Horn - Low-Tone
Hella Horn - Low-Tone
Hella - Corporate Logo
T#:28869559
Part#: 7424001
In Stock
$ 17.99 USD
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$ 17.99 USD
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Universal fit. Not direct fit.
Electrical Connector - Priced Each
Electrical Connector - Priced Each
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:367145
Part#: 61132359999
Ships in 2 Business Days
$ 18.99 USD
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$ 18.99 USD
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2 pin used in many locations on late model BMWs
Hella Relay
Hella Relay
Hella - Corporate Logo
T#:592718
Part#: 965400001
In Stock
$ 14.99 USD
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$ 14.99 USD
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12V 30A SPST relay with bracket
Hella Horn - High-Tone
Hella Horn - High-Tone
Hella - Corporate Logo
T#:592716
Part#: 7424011
In Stock
$ 17.99 USD
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$ 17.99 USD
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Upgrade the sound of your BMW or MINI with the Hella Horn - High-Tone. This high-quality horn delivers a powerful and attention-grabbing sound, enhancing safety on the road. Designed for easy installation, it provides a quick and effective way to improve the audible presence of your vehicle.

  • Powerful and attention-grabbing sound
  • Enhances safety on the road
  • Easy installation for convenience
  • Compatible with BMW and MINI models
  • High-quality construction for durability

Enhance the audible presence of your BMW or MINI with the Hella Horn - High-Tone, ensuring you're heard when it matters most.

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URO Coolant Level Sensor - E24 E30 E32 E34
URO Coolant Level Sensor - E24 E30 E32 E34
For vehicles with production date from 09/1986
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:593414
Part#: 61311378320
Ships in 2 Business Days
$ 17.99 USD
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$ 17.99 USD
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This sensor is critical in keeping tabs of your cooling system's health.
Alternator Bracket Bushing - Priced Each
Alternator Bracket Bushing - Priced Each
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:592985
Part#: 12311715491
Ships in 2 Business Days
$ 2.99 USD
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$ 2.99 USD
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Rubber bushing, placed in the top portion of the alternator support bracket. Each vehicle requires two.
Oil Pressure Switch
Oil Pressure Switch
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
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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Oil Pressure Switch
Oil Pressure Switch
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
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.

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