1997-2000 BMW 5 Series 2.8L Alternator
Specifications
Donor year
1998
Body style
Sedan
Fuel
Gas
Engine size
2.8 L
Engine code
M52
Engine type
2.8L I6
Drivetrain
RWD
About this part
Also known as
Alternator Assembly
Generator
AC Generator
Charging Unit
Stator and Rotor Assembly
What this part does
The alternator generates direct current electrical power to run the vehicle's electrical systems and maintain the battery charge while the engine is operating. It mounts to the front of the engine block and is driven directly by the main accessory serpentine belt. When this unit fails or the internal voltage regulator degrades, the vehicle relies entirely on battery reserve until depleted, which triggers the battery warning indicator on the instrument cluster and eventually causes the engine to stall.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 528i (E39) | 1997-2000 | 2.8L I6 |
| BMW | 328i (E36) | 1996-1999 | 2.8L I6 |
| BMW | Z3 | 1997-2000 | 2.8L I6 |
OEM and interchange numbers
12311432979
12311744560
12311432985
0123515030
Before you order
Verify the amperage rating of your existing unit before purchasing. The E39 generation was factory-equipped with different alternators (commonly 80A, 120A, or 140A) depending on the vehicle's electrical load and optional packages, such as heated seats or upgraded audio systems. You must match the mounting points and the cooling duct style on the rear cover. It is highly recommended to inspect and replace the serpentine belt, idler pulleys, and the main drive tensioner when installing a replacement alternator.
