Find Parts That Fit Your Vehicle

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.

Sub-Categories

Sort By:

OEM Valeo Alternator - 180amp - E9X M3 S65
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377508
Part#: 12317837981
In Stock
$ 630.99

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

$ 403.99 USD
Free Shipping
$ 403.99 USD
Free Shipping
This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!
OEM Starter Motor - E46 M3 2001-2006
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:2988
Part#: 12417835735
In Stock
$ 400.99

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

$ 293.99 USD
Free Shipping
$ 293.99 USD
Free Shipping
This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe
Show More Show Less
Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:1196078
Part#: 12318510090
Ships in 1 Business Day
$ 91.37 USD
Free Shipping on orders $49 and up
$ 91.37 USD
Free Shipping on orders $49 and up
OEM replacement for you BMW alternator fixing charging issues

Voltage Regulator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594108
Part#: 12317603775
Ships in 1 Business Day
$ 71.22

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

$ 70.45 USD
Free Shipping on orders $49 and up
$ 70.45 USD
Free Shipping on orders $49 and up
Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

OEM Valeo Alternator - E60 M5, E63/64 M6
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:14835
Part#: 12317836592
Ships in 4 Business Days
$ 358.99 USD
Free Shipping
$ 358.99 USD
Free Shipping

This is a Valeo brand new 170 amp alternator. These alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications.

No core charge!

This item fits the following BMWs:
2006-2010 E60 BMW M5
2006-2010 E63 BMW M6

Show More Show Less
E46 M3, MZ3 S54 OEM Valeo Alternator (New)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377735
Part#: 12317831436
In Stock at Vendor
$ 509.99 USD
Free Shipping
$ 509.99 USD
Free Shipping

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.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

Show More Show Less

Alternator - 150 Amp - Valeo
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:579634
Part#: 439590
In Stock
$ 620.35

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

$ 518.99 USD
Limited Qty Sale
Free Shipping
$ 620.35

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

$ 518.99 USD
Limited Qty Sale
Free Shipping
Valeo New Alternator - 80 Amp - E34, E36
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377737
Part#: 12311744564
In Stock at Vendor
$ 549.99

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

$ 533.99 USD
Free Shipping
$ 533.99 USD
Free Shipping
Brand new unit with no core charge

OEM Valeo Alternator - 185 amp
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:376244
Part#: 12317525376
Ships in 1 Business Day
$ 718.54 USD
Free Shipping
$ 718.54 USD
Free Shipping

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.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

Show More Show Less

Valeo Brand New Alternator - E89 Z4 M Coupe/Roadster
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:379218
Part#: 12317837691KT
Ships in 5 Business Days
$ 378.99 USD
Free Shipping
$ 378.99 USD
Free Shipping

This is a brand new Valeo alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM Valeo alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications. 

No core charge!

Fits the following BMW Chassis:

E89 BMW Z4 M Coupe, M Roadster

Show More Show Less
Alternator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594101
Part#: 12318570672
In Stock at Vendor
$ 1,094.99

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

$ 1,062.99 USD
Free Shipping on orders $49 and up
$ 1,062.99 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo
Alternator Pulley - E82 E90 E92 E60
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:19332
Part#: 12317570152
Ships in 1-2 days
$ 66.99 USD
Free Shipping on orders $49 and up
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
Show More Show Less


Valeo New Starter Motor - E70, E71, E82, E84, E88, E92, E93, F10, F30...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594588
Part#: 12417616502
Ships in 3 Business Days
$ 265.76 USD
Free Shipping
$ 265.76 USD
Free Shipping
Brand new unit - no core charge! Avoid messing with a core return entirely!
OEM Valeo New Alternator - 230amp
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:383432
Part#: 12317603782
Ships on Jul 23, 2026
$ 730.99 USD
Free Shipping
$ 730.99 USD
Free Shipping

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.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

Show More Show Less
Valeo New Alternator - 230 Amp - E71, F01, F02
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:579635
Part#: 439640
Ships on Jul 23, 2026
$ 590.99 USD
Free Shipping
$ 590.99 USD
Free Shipping
New Replacement Alternator From Valeo - 12317603781

OEM Valeo Alternator - 120amp - E39 E46 E53 Z3, M54 with Valeo Altern...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:371896
Part#: 12317501599
In Stock
$ 323.99 USD
Free Shipping
$ 323.99 USD
Free Shipping

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.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

Show More Show Less

Valeo Alternator - 180 Amp - E70
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377914
Part#: 12317561004
Back Ordered
$ 482.99 USD
Free Shipping
$ 482.99 USD
Free Shipping
Brand new unit with no core charge.
OEM Valeo Alternator - E60 E63 E65 550i 650i 750i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:379446
Part#: 12317542935KT
Back Ordered
$ 444.99 USD
Free Shipping
$ 444.99 USD
Free Shipping

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.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

For vehicles with production date from 03/2005.

Show More Show Less

OEM Valeo Starter (New)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:380773
Part#: 12417835737
Back Ordered
$ 593.99 USD
Free Shipping
$ 593.99 USD
Free Shipping
A failed starter will leave even the best-maintained BMW stranded. Replace your failed starter motor with this brand new replacement from Valeo. Valeo is an OEM BMW supplier - save money and by quality parts by buying them in a different  box!                          
Show More Show Less
Alternator - 220 Amp
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594099
Part#: 12317560989
Ships on Jul 16, 2026
$ 574.96 USD
Free Shipping
$ 574.96 USD
Free Shipping
Replacement Alternator from Valeo

Alternator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594100
Part#: 12317561002
In Stock at Vendor
$ 794.99

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

$ 771.99 USD
Free Shipping
$ 771.99 USD
Free Shipping
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.
Show More Show Less

AUTOTECKNIC Dry Carbon Fiber Battery Terminal Cover - G87 M2 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
AUTOTECKNIC - Corporate Logo
T#:21012623
Part#: ATK-BM-0420-G87
Ships in 7 Business Days
$ 495.00 USD
Free Shipping on orders $49 and up
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!
Show More Show Less
Valeo Alternator - E53
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377182
Part#: 12317540994
Ships in 5 Business Days
$ 384.99 USD
Free Shipping
$ 384.99 USD
Free Shipping
Restore charging system voltage with a new alternator
Vargas USB To Serial For HPFP Controller - BMW N54
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:51778112
Part#: N54-USB-SERIAL-H
Ships in 10 Business Days
New Item
$ 37.99 USD
Free Shipping
$ 37.99 USD
Free Shipping
Take full control of your N54’s fueling system with the Vargas Turbo Technologies USB to Serial adapter.


Vargas Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:52129729
Part#: VTT56BSENSKIT64
Ships in 10 Business Days
New Item
$ 209.99 USD
Free Shipping
$ 209.99 USD
Free Shipping
The VTT 6-Bar MAP sensor kit provides the necessary overhead to monitor boost levels with a linear voltage scale that makes software calibration straightforward.
Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S6...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:51672717
Part#: VTT-MAP-HARNESS
Ships in 10 Business Days
New Item
$ 59.99 USD
Free Shipping
$ 59.99 USD
Free Shipping
As part of the VTT-FAB fabrication line, this extension harness is designed for builders and tuners who need flexibility.
Vargas Coolant Level Extension Harness - BMW B48/B58/S58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:51813310
Part#: VTT-FAB-HC
Ships in 10 Business Days
New Item
$ 49.99 USD
Free Shipping
$ 49.99 USD
Free Shipping
Simplify your next fabrication project with the VTT-FAB series Coolant Extension Harness.

Alternator - 220 Amp
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:639716
Part#: 12317804266
In Stock at Vendor
$ 822.99

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

$ 799.99 USD
Free Shipping
$ 799.99 USD
Free Shipping

Remanufactured Alternator - 170A
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594098
Part#: 12317802929
Ships on Jul 16, 2026
$ 323.99 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo
MINI N14 N18 Alternator - 120 Amp 439617
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:28803228
Part#: 12317619254
In Stock
$ 374.99 USD
Free Shipping on orders $49 and up

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
Show More Show Less

Accessory Drive Belt Kit - E34, E83
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ina - Corporate Logo
T#:42167237
Part#: FB0198K
Back Ordered
$ 145.99 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
Show More Show Less
OEM INA Alternator Pulley - Overrunning Type - E82, E88, E9x, F10, F2...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ina - Corporate Logo
T#:42167226
Part#: EA0141
Back Ordered
$ 67.99 USD
Free Shipping on orders $49 and up
$ 67.99 USD
Free Shipping on orders $49 and up
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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594102
Part#: 12311247288
Back Ordered
$ 547.99

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

$ 532.99 USD
Free Shipping on orders $49 and up
$ 532.99 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo

OEM INA Alternator Pulley - E60, E90
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ina - Corporate Logo
T#:42167235
Part#: EA0202
Back Ordered
$ 46.99

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

$ 33.99 USD
Free Shipping on orders $49 and up
$ 33.99 USD
Free Shipping on orders $49 and up
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.
Show More Show Less