A direct-fit replacement 12V 40A alternator for the John Deere Gator 6x4, Gator HPX, Gator TH 6x4, Gator XUV 850D 4x4, Gator XUV 855D 4x4, M-Gator A2 Military, and M-Gator A3 Military, all fitted with Yanmar engines. 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, internal fan, clockwise rotation, and V-belt pulley with 1/2 inch belt width, cross-referencing John Deere OEM part number AM877740 for straightforward identification. Regulator part number 126000-0600. Verify your model and year against the fitment table before ordering.

Fitment

Key Features

• Direct OEM-specification replacement alternator
• 12V / 40A output - clockwise rotation - internal fan - internal regulator - V-belt pulley / 1/2 inch belt width
• Regulator part number 126000-0600
• Covers John Deere Gator 6x4 / HPX / TH / XUV 850D / XUV 855D and M-Gator Military with Yanmar engine
• Replaces John Deere OEM part numbers AM877740, MIA884637, and SE501824

OEM Cross-Reference

Specifications