Find Parts That Fit Your Vehicle

Home
Engine Parts
Electrical System

BMW Electrical Sensors, Switches, & Relays

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.

This category contains parts that fit the following chassis:

Sub-Categories

Sort By:

Alternator - 210A

T#:17140151

Part#: 12317616126

Back Ordered

$ 521.99

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

$ 506.99 USD

Add to Wish List

Qty

$ 506.99 USD

Add to Wish List

No core charge required!

Hitachi Voltage Regulator - BMW E36 Z3 E34

T#:48850070

Part#: 12321739435

Back Ordered

$ 60.99 USD

Add to Wish List

Qty

$ 60.99 USD

Add to Wish List

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

Show More Show Less

Accessory Drive Belt Kit - E34, E83

T#:42167237

Part#: FB0198K

Back Ordered

$ 166.99 USD

Add to Wish List

Qty

$ 166.99 USD

Add to Wish List

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

Show More Show Less

BMW Alternator 150 Amp - Bosch AL0839X

T#:57376634

Part#: AL0839XKT

Back Ordered

$ 476.86

This product was last offered at the strikethrough price on
08-23-2026

$ 422.86 USD

Add to Wish List

Qty

$ 422.86 USD

Add to Wish List

Protect your BMW's electrical performance on the road and track with the Bosch AL0839X remanufactured alternator. Designed to handle high demand electrical loads under spirited driving conditions

Remanufactured Alternator - 105A - E36 M3 S50 Euro Only

For European models only

T#:378167

Part#: 12311403936KT

Back Ordered

$ 1,472.66 USD

Add to Wish List

Qty

$ 1,472.66 USD

Add to Wish List

Remanufactured Genuine BMW 105 Amp Alternator Note: This product includes a $200 core charge to be refunded once we receive your rebuildable core.

Genuine BMW Engine Wiring Harness

T#:572317

Part#: 12517857116

Back Ordered

5% off MSRP $ 839.99

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

$ 802.00 USD

Add to Wish List

Qty

5% off MSRP

$ 839.99

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

$ 802.00 USD

Add to Wish List

Genuine BMW Engine Wiring Harness

An essential component for maintaining optimal performance and electrical reliability in your BMW vehicle. Crafted to BMW's exacting standards, this engine wiring harness ensures proper connectivity and functionality of various engine components. Its durable construction and precise engineering guarantee long-lasting durability, while its seamless integration with the engine system ensures proper function. Trust Genuine BMW parts to keep your BMW running smoothly.

Maintains optimal performance and electrical reliability
Ensures proper connectivity of engine components
Durable construction for long-lasting durability
Precise engineering for proper function
Seamless integration with engine system

Show More Show Less

OEM INA Alternator Pulley - Overrunning Type - E82, E88, E9x, F10, F2...

T#:42167226

Part#: EA0141

Back Ordered

$ 71.99 USD

Add to Wish List

Qty

$ 71.99 USD

Add to Wish List

Whether you're replacing a failing alternator pulley or performing preventive maintenance, this Alternator Pulley ensures your BMW continues to perform with factory precision and reliability.

Mass Air Flow (MAF) Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:56977979

Part#: 13627520519

Back Ordered

$ 77.99 USD

Add to Wish List

Qty

$ 77.99 USD

Add to Wish List

Keep your BMW performing at its peak with this reliable Mass Air Flow sensor replacement from URO Parts.

1
…
22
23

Select Vehicle

Category

Electrical System

Brand

View All Brands

Price

Special Offers

Shipping

Purpose