BMW Electrical Sensors, Switches, & Relays for BMW 7 Series E23 (1978-1987)

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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 Horn - Low-Tone
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Hella - Corporate Logo
T#:28869559
Part#: 7424001
In Stock
$ 17.99 USD
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Universal fit. Not direct fit.
Hella Relay
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Hella - Corporate Logo
T#:592718
Part#: 965400001
In Stock
$ 14.99 USD
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12V 30A SPST relay with bracket
LK-2M 2 Pin Connector Package
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ECS - Corporate Logo
T#:40072446
Part#: LK2M
In Stock
Sale - Save 29% $ 6.99

This product was last offered at the strikethrough price on
06-14-2026

$ 4.94 USD
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Sale - Save 29%
$ 6.99

This product was last offered at the strikethrough price on
06-14-2026

$ 4.94 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Schwaben Self-Adjusting Wire Stripper/Cutter/Crimper
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Schwaben - Corporate Logo
T#:37622217
Part#: 3774SCH01A
In Stock
Sale - Save 15% $ 22.99

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

$ 19.54 USD
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Sale - Save 15%
$ 22.99

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

$ 19.54 USD
Free Shipping on orders $49 and up

Schwaben's Self-Adjusting Wire Strippers are an essential addition to any garage or toolbox. Engineered with precision and versatility, these wire strippers automatically adapt to various wire sizes, making them perfect for a wide range of automotive and electrical applications.

Crafted with Schwaben's renowned quality standards, this tool ensures reliable performance and long-lasting durability, helping you tackle wiring tasks efficiently and accurately. Whether you're a professional mechanic or a DIY enthusiast, these wire strippers are your go-to solution for seamless and precise wiring repairs.

Key Features:

Ergonomic Design: 6-inch handles with rubber grips provide superior comfort and control during use. Self-Adjusting Stripper Jaws: Serrated jaws offer a secure grip for consistent and accurate stripping. Adjustable Depth Gauge: Enables precise, repeatable wire stripping to match your project’s needs. Wide Range Compatibility: Strips wires ranging from 10 to 24 AWG with ease. Integrated Wire Cutter: Effortlessly slices wires between 10 and 24 AWG. Built-In Crimper: Crimps both insulated and non-insulated wires in sizes from 10 to 22 AWG. Schwaben’s Self-Adjusting Wire Strippers combine precision, convenience, and durability into one must-have tool, ensuring professional results for every project.

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Alternator / PS / AC Idler Nut
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Genuine BMW - Corporate Logo
T#:7139
Part#: 12317677914
In Stock
$ 15.24

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

$ 15.23 USD
Free Shipping on orders $49 and up
$ 15.23 USD
Free Shipping on orders $49 and up
GENUINE BMW ENGINE ELECTRICAL IDLER 12317677914
Febi Relay - Replaces White/Green
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Febi - Corporate Logo
T#:16375128
Part#: 61368373700
Ships on Sep 29, 2026
Sale - Save 28% $ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD
Free Shipping on orders $49 and up
Sale - Save 28%
$ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD
Free Shipping on orders $49 and up
This relay is often the fuel pump relay for many BMW models. To ensure the relay is correct for your car please check the pin locations

Repair Kit For Socket
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Genuine BMW - Corporate Logo
T#:528834
Part#: 61132359992
Ships in 3 Business Days
Sale - Save 6% $ 13.99

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

$ 13.12 USD
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Sale - Save 6%
$ 13.99

This product was last offered at the strikethrough price on
06-25-2026

$ 13.12 USD
Free Shipping on orders $49 and up
Cloth Webbed Adhesive Tape - 7.5 Meters
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Genuine BMW - Corporate Logo
T#:42873702
Part#: 61135B70D27
In Stock
Sale - Save 13% $ 11.99

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

$ 10.49 USD
Free Shipping on orders $49 and up
Sale - Save 13%
$ 11.99

This product was last offered at the strikethrough price on
06-25-2026

$ 10.49 USD
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3 Pin Connector
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ECS - Corporate Logo
T#:33412930
Part#: 12521706096
In Stock
Sale - Save 11% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 9.78 USD
Free Shipping on orders $49 and up
Sale - Save 11%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 9.78 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the idle air control valve (IACV).

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 12521706096 - Commonly used for the idle air control valve (IACV).

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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15A Fuse - Priced Each
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Bosch - Corporate Logo
T#:375327
Part#: 61131372626
In Stock at Vendor
$ 2.03 USD
Free Shipping on orders $49 and up
120 pc Fuse Assortment
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Performance Tool - Corporate Logo
T#:1809154
Part#: W5368
Ships in 1 Business Day
$ 13.68 USD
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A must for any toolbox.
Battery Tender Plus Advanced Battery Charging System
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Battery Tender - Corporate Logo
T#:49892371
Part#: BTT0210128
Back Ordered
New Item
$ 69.99 USD
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Temperature Sensor
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:29898445
Part#: 13621362599
In Stock at Vendor
$ 283.99

This product was last offered at the strikethrough price on
04-10-2026

$ 264.99 USD
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$ 264.99 USD
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Genuine BMW Temperature-Time Switch
Washer - E12, E21, E23, E24, E28, E30
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Genuine BMW - Corporate Logo
T#:38719
Part#: 12311268420
Ships in 3 Business Days
$ 10.99 USD
Free Shipping on orders $49 and up


Genuine BMW Washer

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

Fits BMW Engines including:
M10,M20,M30,S14,S38

Washer
10X5,3X1-200 Hv
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Genuine BMW - Corporate Logo
T#:215808
Part#: 07119904206
Ships in 1-2 days
$ 1.99 USD
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$ 1.99 USD
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Genuine BMW Washer - 07119904206


Lock Ring - E23, E24, E28, E30
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Genuine BMW - Corporate Logo
T#:38730
Part#: 12311276226
Ships in 3 Business Days
$ 9.99 USD
Free Shipping on orders $49 and up


Genuine BMW Lock Ring

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

Fits BMW Engines including:
M10,M20,M30,S14,S38


Genuine BMW 10 Pole Socket Housing - Multiple BMWs
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Genuine BMW - Corporate Logo
T#:540927
Part#: 61139277742
Ships in 1-2 days
$ 4.99 USD
Free Shipping on orders $49 and up
Fixing a faulty connection in your BMWs electrical system? This 10 pole socket housing is a Genuine BMW replacement.
Genuine BMW Universal Socket Housing
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Genuine BMW - Corporate Logo
T#:21280
Part#: 61138352304
Ships in 5 Business Days
7% off MSRP $ 28.99

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

$ 26.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 28.99

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

$ 26.99 USD
Free Shipping on orders $49 and up


Genuine BMW Universal Socket Housing, Uncoded - 3 Pol.
This item fits the following BMW Chassis:
E36 M3,E34 M5,E39 M5,E60 M5,E46 M3,E70 X5M,E71 X6M,E82 1M Coupe,E53 48IS,E34,E36,E38,E39,E46,E53 X5,E65,E70 X5,E71 X6,E82,E83 X3,E89 Z4,E90,F01,F02,F06,F10,F12,F13

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Genuine BMW Earth Strap For Engine Hood - 65311720876 - E34,E34 M5 ...
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Genuine BMW - Corporate Logo
T#:154534
Part#: 65311720876
Ships in 5 Business Days
10% off MSRP $ 9.99

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

$ 8.99 USD
Free Shipping on orders $49 and up
10% off MSRP
$ 9.99

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

$ 8.99 USD
Free Shipping on orders $49 and up


Genuine BMW Earth Strap For Engine Hood
This item fits the following BMW Chassis:
E34 M5,E34

Genuine BMW Electrical Connector Repair Kit - Multiple BMWs ...
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Genuine BMW - Corporate Logo
T#:206288
Part#: 61132359999
Ships Today
$ 19.99 USD
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This is a Genuine BMW 2 pin connector that is used in many places by BMW.

Genuine BMW Voice Recognition SES Adapter Plug - Multiple BMWs ...
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Genuine BMW - Corporate Logo
T#:11467
Part#: 84110018038
In Stock
$ 6.99 USD
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Genuine BMW Alternator Supporting Bracket - E23 735i E24 635CSi M30 3...
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Genuine BMW - Corporate Logo
T#:21711
Part#: 12311708343
Ships in 8 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

Wire With Terminals For 90 Degree 6 Pin Bulkhead (Red)
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Precision Raceworks - Corporate Logo
T#:38161695
Part#: 201-0360-RED
Ships in 6 Business Days
$ 5.99 USD
Free Shipping on orders $49 and up
Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Red in color and 12 Gauge.
Wire With Terminals For 90 Degree 6 Pin Bulkhead - Black - Dual 18 Ga...
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Precision Raceworks - Corporate Logo
T#:38161710
Part#: 201-0362
Ships in 9 Business Days
$ 4.99 USD
Free Shipping on orders $49 and up
Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Black in color and 18 Gauge dual wire.


Wire With Terminals For 90 Degree 6 Pin Bulkhead (Black) 12 Gauge ...
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Precision Raceworks - Corporate Logo
T#:38161711
Part#: 201-0360-BLK
Ships in 9 Business Days
$ 4.99 USD
Free Shipping on orders $49 and up
Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Black in color and 12 Gauge.
Wire With Terminals For 90 Degree 6 Pin Bulkhead (White)
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Precision Raceworks - Corporate Logo
T#:38161693
Part#: 201-0360-WHT
Ships in 9 Business Days
$ 4.99 USD
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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. White in color and 12 Gauge.
Wire With Terminals For 90 Degree 6 Pin Bulkhead - Blue
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Precision Raceworks - Corporate Logo
T#:38161703
Part#: 201-0360-BLU
Ships in 9 Business Days
$ 4.99 USD
Free Shipping on orders $49 and up
Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Blue in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead - Orange
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Precision Raceworks - Corporate Logo
T#:38161698
Part#: 201-0360-ORG
Ships in 9 Business Days
$ 4.99 USD
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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Orange in color and 12 Gauge.

Wire With Terminals For 90 Degree 6 Pin Bulkhead (Green)
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Precision Raceworks - Corporate Logo
T#:38161687
Part#: 201-0361-GRN
Ships in 9 Business Days
$ 3.99 USD
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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Green in color and 18 Gauge.
Wire With Terminals For 90 Degree 6 Pin Bulkhead - Yellow
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Precision Raceworks - Corporate Logo
T#:38161692
Part#: 201-0360-YEL
Ships in 9 Business Days
$ 4.99 USD
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Upgrade any wiring system with this optimal solution, ensuring reliability and durability in any demanding automotive application. Yellow in color and 12 Gauge.

Wire Pinning Kit - MLK 1.2 Female Jack
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Genuine BMW - Corporate Logo
T#:55281746
Part#: 125275WRKT
Ships in 8 Business Days
New Item
$ 37.40 USD
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This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.
Morimoto Standalone Can-Bus Wiring Harness - H4 / 9003 - Priced Each ...
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Morimoto - Corporate Logo
T#:54388428
Part#: H240
Ships on Jul 20, 2026
New Item
Sale - Save 17% $ 21.99

This product was last offered at the strikethrough price on
06-23-2026

$ 18.21 USD
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Sale - Save 17%
$ 21.99

This product was last offered at the strikethrough price on
06-23-2026

$ 18.21 USD
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ZF Speed Sensor
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2X Entries For Our G87 M2 Sweepstakes!
ZF - Corporate Logo
T#:16840480
Part#: 24341218551
Ships on Jul 20, 2026
$ 61.60 USD
Free Shipping on orders $49 and up
This ZF transmission speed sensor/pulse generator helps to control the shifting on your automatic transmission. If the transmission on your BMW is not shifting correctly this part may be the culprit. Cars with a 5-speed automatic transmission may require 2 sensors.
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FAE Oil Pressure Switch - E10, E12, E21, E23, E24, E28, E30
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FAE - Corporate Logo
T#:16202
Part#: 61311354274
Ships on Jul 27, 2026
$ 7.13 USD
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OIL PRESSURE SWITCH
2 Pin Connector
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ECS - Corporate Logo
T#:33412932
Part#: 61132359999
Ships on Jul 28, 2026
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Oil Pressure Switch
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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
Free Shipping on orders $49 and up
Make sure your vehicle is reading its oil pressure correctly with a new oil pressure switch.


Bosch Starter Motor - E23 E24 E28
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Bosch - Corporate Logo
T#:224639
Part#: SR442X
Back Ordered
$ 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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