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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Genuine BMW - Corporate Logo
T#:367846
Part#: 13621702078
Ships in 1-2 days
4% off MSRP $ 767.99

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

$ 733.99 USD
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4% off MSRP
$ 767.99

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

$ 733.99 USD
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The MAF (Mass Air Flow) sensor regulates the fuel flow through the injectors based on the intake air volume. If your vehicle displays a MAF code, it's crucial to replace it promptly to optimize gas mileage and performance. MAF failure often occurs gradually, leading to decreased fuel efficiency and compromised performance. When it fails completely, the vehicle may stutter and stall, entering a limp mode. A simple test involves unplugging the connector before starting the car. If the idle improves compared to previous poor idling, it's a sign that the MAF needs replacement. Neglecting this maintenance can lead to decreased fuel economy, as excessive fuel is injected into the engine without being efficiently burned. Opting for a genuine BMW replacement ensures stock-quality performance, offering your vehicle an efficiency boost.
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Genuine BMW - Corporate Logo
T#:377833
Part#: 12141729291
Ships in 5 Business Days
6% off MSRP $ 297.99

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

$ 280.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 297.99

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

$ 280.99 USD
Free Shipping on orders $49 and up
Genuine BMW - Corporate Logo
T#:409145
Part#: 12321739435
Ships in 1-2 days
6% off MSRP $ 202.99

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

$ 190.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 202.99

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

$ 190.99 USD
Free Shipping on orders $49 and up

Genuine BMW - Corporate Logo
T#:481060
Part#: 12411729981
Ships in 1-2 days
8% off MSRP $ 1,116.99

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

$ 1,027.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 1,116.99

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

$ 1,027.99 USD
Free Shipping on orders $49 and up
Has your BMW starter not been cranking your engine like it used to or are you getting an intermittent clicking while attempting to start? There is a good chance your starter is beginning to fail. This replacement starter is brand new, so no core is required.
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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 - Corporate Logo
T#:206288
Part#: 61132359999
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
This is a Genuine BMW 2 pin connector that is used in many places by BMW.

Genuine BMW - Corporate Logo
T#:174348
Part#: 12311744565
Ships in 1-2 days
3% off MSRP $ 1,131.99

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

$ 1,096.99 USD
3% off MSRP
$ 1,131.99

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

$ 1,096.99 USD


Genuine BMW At-Compact Alternator - 80A
This item fits the following BMW Chassis:
E36 M3,E36

Fits BMW Engines including:
M50,M52,S50,S52


Genuine BMW - Corporate Logo
T#:135881
Part#: 61108365702
Ships in 8 Business Days
5% off MSRP $ 653.99

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

$ 623.99 USD
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5% off MSRP
$ 653.99

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

$ 623.99 USD
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Genuine BMW Repair Wiring Set For Trunk Lid/Right -
This item fits the following BMW Chassis:
E34


Genuine BMW - Corporate Logo
T#:40247
Part#: 12521714254
Ships in 8 Business Days
$ 9.99 USD
Free Shipping on orders $49 and up


Genuine BMW Cover -
This item fits the following BMW Chassis:
E34,E38,E39,F06,F10,F12,F13

Genuine BMW - Corporate Logo
T#:14940
Part#: 13621401945
Special Order: No Guaranteed ETA
6% off MSRP $ 103.99

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

$ 97.99 USD
Free Shipping
6% off MSRP
$ 103.99

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

$ 97.99 USD
Free Shipping


Genuine BMW Temperature Sensor, Water
This item fits the following BMW Chassis:
E34 M5,E34

Fits BMW Engines including:
S38

Genuine BMW - Corporate Logo
T#:38905
Part#: 12311736110
Ships in 8 Business Days
4% off MSRP $ 44.99

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

$ 42.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 44.99

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

$ 42.99 USD
Free Shipping on orders $49 and up


Genuine BMW Connector -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M60,M70



Genuine BMW - Corporate Logo
T#:377921
Part#: 12311744565KT
Ships in 1-2 days
$ 1,357.99 USD
$ 1,357.99 USD
Genuine BMW remanufactured alternator for E34 and E36 models with Inline-6 engines. The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator. Includes a $200.00 refundable core charge
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Genuine BMW - Corporate Logo
T#:52323
Part#: 24637508670
Ships in 8 Business Days
3% off MSRP $ 260.99

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

$ 252.99 USD
Free Shipping
3% off MSRP
$ 260.99

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

$ 252.99 USD
Free Shipping


Genuine BMW Cable Harness -
This item fits the following BMW Chassis:
E34

Genuine BMW - Corporate Logo
T#:38848
Part#: 12311718908
Ships in 8 Business Days
2% off MSRP $ 55.99

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

$ 54.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 55.99

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

$ 54.99 USD
Free Shipping on orders $49 and up


Genuine BMW Intake Manifold -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M30


Genuine BMW - Corporate Logo
T#:40345
Part#: 12521736073
Ships in 8 Business Days
6% off MSRP $ 17.99

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

$ 16.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 17.99

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

$ 16.99 USD
Free Shipping on orders $49 and up


Genuine BMW Covering Base B+ -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M60,M62


Genuine BMW - Corporate Logo
T#:7132
Part#: 12311722985
Ships in 8 Business Days
4% off MSRP $ 55.99

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

$ 53.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 55.99

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

$ 53.99 USD
Free Shipping on orders $49 and up


Genuine BMW Set Mounting Parts - B+/D+
This item fits the following BMW Chassis:
E34 M5,E34

Fits BMW Engines including:
M20,M30,S38

Genuine BMW - Corporate Logo
T#:181023
Part#: 12311722989
Ships in 8 Business Days
4% off MSRP $ 26.99

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

$ 25.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 26.99

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

$ 25.99 USD
Free Shipping on orders $49 and up


Genuine BMW Condenser
This item fits the following BMW Chassis:
E34 M5,E34

Fits BMW Engines including:
M30,M70,S38,S70


Genuine BMW - Corporate Logo
T#:55281746
Part#: 125275WRKT
Ships in 7 Business Days
New Item
$ 37.40 USD
Free Shipping on orders $49 and up
This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.
ZF - Corporate Logo
T#:16840480
Part#: 24341218551
Ships on Oct 14, 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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Bosch - Corporate Logo
T#:224669
Part#: AL143X
Ships on Oct 22, 2026
$ 354.00 USD
Free Shipping
$ 354.00 USD
Free Shipping
115 amp Bosch alternator for many BMW M30 6 cylinder engines on E34 5 series and E32 7 series. Bosch is an original equipment supplier to BMW, and is the finest and most recognized German brand of alternator available. Buy only the best alternator for your BMW -- buy a Bosch alternator. Can be used in place of bmw part number. 12311735704

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.

A refundable core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.

This Bosch Alternator fits the following BMWs:
1989-1993 E34 BMW 535i
1988-1992 E32 BMW 735i 735il
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Bosch - Corporate Logo
T#:1988
Part#: AL0154X
Ships on Oct 22, 2026
$ 409.99 USD
Free Shipping on orders $49 and up
A replacement 140 amp Bosch alternator for the 1989-1990 525i. 

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.

A refundable core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge. 

This Bosch alternator fits the following BMWs:
1989-1990  E34 5 Series  525i & 525i wagon
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Bosch - Corporate Logo
T#:57231530
Part#: 12411427080
Special Order: No Guaranteed ETA
New Item
$ 78.99 USD
Free Shipping on orders $49 and up
When you are at the track or gearing up for a weekend backroad drive, the last thing you need is a sluggish starter holding your BMW back.
Bosch - Corporate Logo
T#:1675
Part#: AL0741X
Ships on Oct 22, 2026
$ 389.99 USD
Free Shipping on orders $49 and up

115 amp Bosch alternator for 1993 525i & 525i Touring (the E34 chassis). Bosch is an original equipment supplier to BMW, and is the finest and most recognized German brand of alternator available. Buy only the best alternator for your BMW -- buy a Bosch alternator.

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.

A refundable core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.

This Bosch Alternator fits the following BMWs:
1993-1993 E34 5 Series 525i & 525i Touring (1993 model only)

Includes $123.00 core charge to be refunded on return of your rebuildable core.

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Hella - Corporate Logo
T#:190829
Part#: 12141729291
Special Order: No Guaranteed ETA
$ 66.99 USD
Free Shipping on orders $49 and up
OEM BMW ENGINE ELECTRICAL CAMSHAFT SPEED SENSOR 12141731886.--

This item fits the following BMWs:
BMW 5 Series -540i
BMW 7 Series - 740i, 740iL
BMW 8 Series - 840i, 840ci

--.
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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
Free Shipping
Sale - Save 2%
$ 196.99

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

$ 193.26 USD
Free Shipping
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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Coolant Temperature Sensor
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5958757
Part#: 12621747281
Ships on Oct 14, 2026
$ 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
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:55497425
Part#: 3148998003
Back Ordered
New Item
$ 26.99

This product was last offered at the strikethrough price on
08-26-2026

$ 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.

CoreCharge - Corporate Logo
T#:1986
Part#: AL0749X
Back Ordered
$ 508.99

This product was last offered at the strikethrough price on
04-13-2026

$ 497.99 USD
$ 497.99 USD
Keep your BMW’s engine management, ignition, and onboard electronics operating at peak efficiency with the Bosch Premium Remanufactured 80-Amp Alternator. Whether you are wringing out your E36 M3 on the track or pushing your street build, consistent electrical delivery is critical
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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
Free Shipping
$ 340.99 USD
Free Shipping
Price Included a $40.00 Core Charge

Ina - Corporate Logo
T#:42167237
Part#: FB0198K
Back Ordered
$ 166.99 USD
Free Shipping on orders $49 and up
Ideal for scheduled maintenance or as a preventive repair, the Accessory Drive Belt Kit offers dependable performance and peace of mind for BMW owners looking to maintain factory-quality operation and longevity
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Hitachi - Corporate Logo
T#:48850070
Part#: 12321739435
Back Ordered
$ 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
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