BMW Electrical Sensors, Switches, & Relays for BMW 5 Series E28 (1982-1988)

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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 Starter Motor - E30 325e 325i 325is 325ix E34 525i
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Bosch - Corporate Logo
T#:2275
Part#: SR443X
In Stock
$ 228.99 USD
Free Shipping
$ 228.99 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:
1987-1991 E30 3 Series 325i 325is 325ix 325ic
1989-1987-1988 E30 3 Series 325e 325es 12/1986-1988
1989-1990 E34 5 Series 525i M20 engine only
1987-1988 E28 5 Series 528e 12/1986-1988

 

Includes $45 core charge to be refunded on return of your rebuildable core.

 

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Genuine BMW Alternator Pulley - 66mm - M20 2.5L
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Genuine BMW - Corporate Logo
T#:19315
Part#: 12311288238
Ships in 1 day
4% off MSRP $ 109.99

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

$ 105.99 USD
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4% off MSRP
$ 109.99

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

$ 105.99 USD
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Genuine BMW Pulley - D=66mm

This item fits the following BMW Chassis:
E30 M3,E30,E34

Fits BMW Engines including:
M10,M20,S14

Genuine BMW Crankshaft position sensor - 528e, E30 M20 2.7L, E34 M20 ...
For vehicles with a production date from 12/1986
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:185063
Part#: 12141720856
Ships in 1-2 days
6% off MSRP $ 217.99

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

$ 203.99 USD
Free Shipping
6% off MSRP
$ 217.99

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

$ 203.99 USD
Free Shipping


This item has been superseded to 12141720852

Genuine BMW Outdoor Temperature Sensor / Probe
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Genuine BMW - Corporate Logo
T#:11195
Part#: 65811385337
Ships in 1 day
1% off MSRP $ 178.99

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

$ 177.99 USD
Free Shipping
1% off MSRP
$ 178.99

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

$ 177.99 USD
Free Shipping


Genuine BMW Sensor Outdoor Temperatur
This item fits the following BMW Chassis:
E30 M3,E30


OMP Battery Cut Off Switch / Kill Switch
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OMP - Corporate Logo
T#:1614
Part#: EA-462
Back Ordered
$ 65.00 USD
Free Shipping
$ 65.00 USD
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OMP Battery Cut Off Switch / Kill Switch, for use in racecars as an emergency "kill switch", to depower the electrical system in the event of a crash or other emergency. This cut off switch is FIA approved, has 6 poles and alternator protection, as well as a removable key.
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Hella Crankshaft Position Sensor - E28, E30, E34
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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
Free Shipping
$ 114.99 USD
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Having a crank but no starting issue? This sensor is often the culprit

Genuine BMW Gong - 65811376047 - E30
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:155141
Part#: 65811376047
Ships in 1 day
1% off MSRP $ 94.99

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

$ 93.99 USD
Free Shipping
1% off MSRP
$ 94.99

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

$ 93.99 USD
Free Shipping


Genuine BMW Gong -
This item fits the following BMW Chassis:
E30

Genuine BMW Throttle Position Sensor M20 M50 Engine
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Genuine BMW - Corporate Logo
T#:367860
Part#: 13631710559
Ships in 1 day
6% off MSRP $ 381.99

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

$ 357.99 USD
Free Shipping
6% off MSRP
$ 381.99

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

$ 357.99 USD
Free Shipping

Enhance the performance of your BMW equipped with M20 or M50 engines with the Turner Motorsport Genuine Throttle Position Sensor. Over time, the throttle position sensor can deteriorate, affecting the vehicle's driveability. Replace it with a new, genuine BMW sensor to ensure optimal performance and responsiveness.

  • Genuine BMW part guarantees quality and compatibility
  • Restores accurate throttle response
  • Ensures proper engine performance and drivability
  • Easy installation for hassle-free maintenance
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Bosch Starter Motor - E30 325e 325es E28 528e E21 323i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:2278
Part#: SR43X
In Stock at Vendor
$ 324.99

This product was last offered at the strikethrough price on
02-14-2026

$ 252.99 USD
Free Shipping
$ 252.99 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 fits the following BMWs:
1984-1985 E30 3 Series 323i 325e 325es
1982-12/1986 E28 5 Series 528e
1977-1983E21 3 Series 320/6 323i

 

Includes $45.00 core charge to be refunded on return of your rebuildable core.

 

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Genuine BMW Temperature Sensor
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:200307
Part#: 13621362599
Ships in 1 day
6% off MSRP $ 255.99

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

$ 239.99 USD
Free Shipping
6% off MSRP
$ 255.99

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

$ 239.99 USD
Free Shipping
Genuine BMW Temperature-Time Switch
Genuine BMW Alternator Supporting Bracket - E23 735i E24 635CSi M30 3...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:21711
Part#: 12311708343
Ships in 7 Business Days
4% off MSRP $ 158.99

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

$ 152.99 USD
Free Shipping
4% off MSRP
$ 158.99

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

$ 152.99 USD
Free Shipping
Genuine BMW SUPPORTING BRACKET
Fits BMW Engines including:
M30,S38

Genuine BMW Rmfd Generator - 12311711375
90A
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Genuine BMW - Corporate Logo
T#:38825
Part#: 12311711375
Ships in 7 Business Days
$ 1,444.99 USD
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$ 1,444.99 USD
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Price includes $180.00 core charge.


Bosch Starter Motor - E23 E24 E28
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:224639
Part#: SR442X
Ships on Jun 30, 2026
$ 222.99

This product was last offered at the strikethrough price on
04-15-2026

$ 160.00 USD
Free Shipping
$ 160.00 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 fits the following BMWs:
1988 E28 5 Series 528e M5
1988-1989 E24 6 Series M6
1984-1987 E23 7 Series 735i
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Remanufactured Alternator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:6699718
Part#: 12312287828KT
Ships on Oct 8, 2026
$ 1,211.99 USD
Free Shipping
$ 1,211.99 USD
Free Shipping
Price includes refundable $200 core charge