Description
Replace a failed compatible stepper motor controller with the genuine Generac 0D4522 Controller Assembly. This equipment-specific electronic component is used in select Generac generator systems with GT-760 and GT-990 engine applications.
The assembly controls designated stepper motor functions associated with engine operation. Compatibility depends on the generator’s model, serial number, production date, wiring, and engine configuration. Confirm part number 0D4522 against the applicable Generac parts diagram before purchasing.
Product Features:
• Genuine Generac OEM replacement part
• Stepper motor controller assembly
• Designed for select GT-760 and GT-990 engine applications
• Compatible with designated Generac generator models
• Suitable for replacing a failed compatible controller
• Equipment-specific electronic component
• New replacement part
Package Includes:
• 1 Generac 0D4522 stepper motor controller assembly
Wiring, linkage components, mounting hardware, retrofit components, and other accessories should not be assumed to be included unless shown or specified by the seller.
Compatible Generator Models:
4451, 4582, 4582-1, 4583, 4986-0, 4987-0, 4987-1.
Engine Applications:
• GT-760
• GT-990
Serial-Number Requirement:
• For applicable units with serial numbers after 3691548, part 0D4522 may be used.
• For units with serial numbers before 3691548, Generac documentation indicates that retrofit kit D45220ESV may be required instead.
Confirm the cutoff and required part against the generator’s complete model and serial numbers before ordering.
Product Information:
• Brand: Generac
• Part number: 0D4522
• Product type: Stepper motor controller assembly
• Application: Select Generac generators
• Engine compatibility: Select GT-760 and GT-990 applications
• Quantity: 1
• Condition: New
• Fitment type: Equipment- and serial-specific
• Classification: Genuine OEM replacement part
Installation Information:
This controller is an electronic engine-control component and should be diagnosed and installed by a qualified generator technician. Before servicing, follow the manufacturer’s shutdown procedure and isolate utility power, generator output, and the starting battery.
After installation, the technician should inspect the associated wiring and stepper motor components and verify engine speed, frequency, voltage, and complete generator operation.
This product is not universally compatible or as the generator’s primary control board. Verify the generator model, serial number, engine type, and original controller number before ordering.








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