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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.

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Innovate LC-2 Wideband O2 Controller Kit

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:28836410

Part#: 38770

In Stock at Vendor

$ 212.99 USD

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$ 212.99 USD

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Features & Benefits:

Two configurable linear 0-5V analog outputs Ability to calibrate O2 sensors for maximum accuracy Includes LC-2 controller and Bosch wideband O2 sensor Comes with a program cable, manual, and a 10 ft. sensor cable Includes a 1-inch mild steel exhaust bung Innovate MTS serial in/out capability Integrated dual-color status LED (green/red) Patented DirectDigital™ wideband sensor control Positive lock connectors for all connections Real-time display data on screen or with the powerful LogWorks software Range:

AFR (Air-Fuel Ratio) range from 7.4:1 to 22.4:1 (0.5 to 1.5 lambda)

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Voltage Regulator

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T#:594108

Part#: 12317603775

Ships in 1 Business Day

$ 71.56

This product was last offered at the strikethrough price on
10-27-2026

$ 64.00 USD

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$ 64.00 USD

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Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70

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T#:1196078

Part#: 12318510090

Ships in 1 Business Day

$ 92.82

This product was last offered at the strikethrough price on
10-27-2026

$ 83.01 USD

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$ 83.01 USD

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OEM replacement for you BMW alternator fixing charging issues

Alternator

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T#:594101

Part#: 12318570672

Ships in 1 Business Day

$ 1,094.99

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

$ 1,062.99 USD

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$ 1,062.99 USD

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Replacement Alternator from Valeo

Alternator Pulley - E82 E90 E92 E60

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T#:19332

Part#: 12317570152

Ships in 1 day

$ 66.99 USD

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$ 66.99 USD

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This OEM alternator pulley has a ratcheting mechanism inside that can wear out, causing a rattling sound. This mechanism allows the alternator to freewheel to a degree. This is only for the Valeo brand alternator/

This item fits the following BMWs:
2008+ E82 BMW 128i with N51 engine
2006-2007 E90 BMW 325i 325xi 330i 330xi - Sedan
2006-2007 E90 BMW 328i 328xi - Sedan with N51 engine
2006-2007 E91 BMW 325xi - Wagon
2007-2007 E92 BMW 328i 328xi 328i xDrive - Coupe with N51 engine
2006-2007 E60 BMW 525i 525xi 530i 530xi

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EV Charging Extension Cord - 30-foot NEMA 14-50

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T#:22987081

Part#: CHRG-EXT

In Stock

$ 199.99 USD

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$ 199.99 USD

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The EVANNEX 30-foot charging cable extension integrates seamlessly with NEMA 14-50 connectors found in various home or mobile chargers.

Compatible with BMW or MINI electric vehicles, this extension cord extends the charging range to reach power sources up to 50 feet away.

Integration with most NEMA 14-50 chargers
Ability to connect to distant power sources
Ergo Grip Handle for secure handling
Built-in LED indicator for easy power activation confirmation
Enhanced charging accessibility for on-the-go use
Ideal for connecting to unconventional power outlets like RV hookups, dryers, or air conditioner plugs

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AUTOTECKNIC Dry Carbon Fiber Battery Terminal Cover - G87 M2 ...

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:21012623

Part#: ATK-BM-0420-G87

Ships in 7 Business Days

$ 495.00 USD

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$ 495.00 USD

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The boldly styled G87 already touts carbon features but carbon fiber is not very often displayed in the engine bay. If you are looking to give your engine bay some carbon spark, AUTOTECKNIC introduces you to their dry carbon battery terminal cover to beautify your engine bay and bring a smile to your face every time you open the hood of your S58 monster! Made from high-quality carbon, this product is sure to stand the test of time!

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Denso Starter Motor - BMW N55 S55 3.0L

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T#:40004863

Part#: 12417631559

Ships in 1 Business Day

$ 461.99

This product was last offered at the strikethrough price on
05-04-2026

$ 396.99 USD

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$ 396.99 USD

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If your car won't turn over, there is a good chance your starter is shot. Denso's OEM starter is a high quality replacement that will give you peace of mind thanks to its long life-span.

Remanufactured Alternator - 170A

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T#:594098

Part#: 12317802929

Ships in 1 day

$ 541.55

This product was last offered at the strikethrough price on
09-22-2026

$ 515.75 USD

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$ 515.75 USD

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Replacement Alternator from Valeo

MINI N14 N18 Alternator - 120 Amp 439617

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T#:28803228

Part#: 12317619254

Ships on Nov 23, 2026

$ 374.99 USD

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$ 374.99 USD

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MINI N14 N18 Alternator is an essential component for powering the electrical system of your Mini. Engineered to provide reliable performance, this alternator ensures your Mini stays running smoothly. Upgrade your Mini with this genuine alternator for dependable power generation.

Powers the electrical system
Reliable performance
Ensures smooth operation
Genuine Mini part

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Alternator - 210A

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T#:17140151

Part#: 12317616126

Back Ordered

$ 521.99

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

$ 506.99 USD

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$ 506.99 USD

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No core charge required!

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

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T#:42167226

Part#: EA0141

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$ 71.99 USD

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$ 71.99 USD

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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.

Alternator

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T#:594102

Part#: 12311247288

Back Ordered

$ 547.99

This product was last offered at the strikethrough price on
05-08-2026

$ 389.23 USD

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$ 389.23 USD

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Replacement Alternator from Valeo

OEM INA Alternator Pulley - E60, E90

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T#:42167235

Part#: EA0202

Back Ordered

$ 46.99

This product was last offered at the strikethrough price on
06-19-2026

$ 33.99 USD

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$ 33.99 USD

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Whether you have a failing component or are performing preventive maintenance, this INA Alternator Pulley from Turner Motorsport is the perfect choice to keep your BMW’s electrical and accessory systems operating at peak performance.

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Accessory Drive Belt Kit - E34, E83

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T#:42167237

Part#: FB0198K

Back Ordered

$ 166.99 USD

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$ 166.99 USD

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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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