A direct-fit replacement 12V 120A alternator for John Deere combine harvesters and Case IH sprayer 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, 8mm battery stud, W-terminal spade, 51mm bottom mount, and threaded top ear, cross-referencing John Deere OEM part number TY24486 for straightforward identification. Verify your model and year against the fitment table before ordering.

Key Features

• Direct OEM-specification replacement alternator
• 12V / 120A output - clockwise rotation - external fan - internal regulator
• 8mm battery stud - W-terminal spade - 51mm bottom mount - top ear threaded
• Covers John Deere combines and Case IH sprayer applications
• Replaces John Deere OEM part numbers TY24486, AE52707, AH165975, AT185951, and SE501343

OEM Cross-Reference

Specifications