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.
Keep your BMW’s engine management, ignition, and onboard electronics operating at peak efficiency with the Bosch Premium Remanufactured 80-Amp Alternator. Whether you are wringing out your E36 M3 on the track or pushing your street build, consistent electrical delivery is critical
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