Find Parts That Fit Your Vehicle

Alternator

The alternator keeps the battery in a constant state of charge anytime the engine is running. If your lights are dimming or you hear excessive bearing noise around the alternator, chances are that it's time for a replacement.

Sort By:

New Alternator - 140amp | BMW E36 E34 M50 M52 S50 S52

10X Entries Into Our F80 M3 Sweepstakes

T#:25042544

Part#: 12311744567

In Stock

Sale - Save 15% $ 219.99

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

$ 186.99 USD

Add to Wish List

Qty

Sale - Save 15%

$ 219.99

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

$ 186.99 USD

Add to Wish List

New Alternator - 180 Amp

10X Entries Into Our F80 M3 Sweepstakes

T#:26438187

Part#: 12317558220

In Stock

Sale - Save 10% $ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD

Add to Wish List

Qty

Sale - Save 10%

$ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD

Add to Wish List

New Alternator - 120A

10X Entries Into Our F80 M3 Sweepstakes

T#:25042543

Part#: 12317501690

In Stock

Sale - Save 20% $ 211.99

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

$ 169.59 USD

Add to Wish List

Qty

Sale - Save 20%

$ 211.99

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

$ 169.59 USD

Add to Wish List

Alternator - 180amp

10X Entries Into Our F80 M3 Sweepstakes

T#:26438185

Part#: 12317837981

In Stock

Sale - Save 15% $ 304.99

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

$ 259.24 USD

Add to Wish List

Qty

Sale - Save 15%

$ 304.99

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

$ 259.24 USD

Add to Wish List

Alternator - 120amp

10X Entries Into Our F80 M3 Sweepstakes

T#:25042542

Part#: 12317831436

Ships on Oct 30, 2026

Sale - Save 20% $ 222.99

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

$ 178.39 USD

Add to Wish List

Qty

Sale - Save 20%

$ 222.99

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

$ 178.39 USD

Add to Wish List

Voltage Regulator

T#:596879

Part#: 12321350052

Back Ordered

$ 41.99

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

$ 39.71 USD

Add to Wish List

Qty

$ 39.71 USD

Add to Wish List

If you are having issues with voltage peaking, lights fading in and out as your driving, or your battery keeps dying despite the car running, It could be the result of a faulty voltage regulator. Voltage regulators control the amount of power coming from the alternator.

Show More Show Less