A direct-fit replacement 12V 85A alternator for John Deere tractor applications. The alternator generates AC electricity as the engine runs, which is converted to DC power to charge the battery and supply the vehicle's electrical system. A failing alternator typically presents as a flat battery that will not hold charge, dimming lights under load, or complete electrical failure even with a known good battery.

Manufactured to OEM specification with internal regulator, external fan, clockwise rotation, 8.4mm unthreaded top hole, 8.4mm bottom mount with 56mm overall length, and 8mm x 1.25 B+ stud, cross-referencing John Deere OEM part number AL67176 for straightforward identification. Verify your model and year against the fitment table before ordering.

Key Features

• Direct OEM-specification replacement alternator
• 12V / 85A output - clockwise rotation - external fan - internal regulator
• 8.4mm unthreaded top hole - 8.4mm bottom mount / 56mm OAL - 8mm x 1.25 B+ stud
• Replaces John Deere OEM part numbers AL67176, AL78690, AL81437, AL60033, AL89690, TY6792, and TY6778

OEM Cross-Reference

Specifications