Our service department is 100% open and staff is on duty for scheduled maintenance, repairs, and 24/7/365 emergency calls. Click here to read our full statement.

Generac Controller 0J8371C

(1 customer review)

Our Price: $584.99

Assembly, Evolution Controller
Supersedes part numbers 0J9079A, 0J8371A, 0J8371ASRV, 0J8371AHSRV, 0J8371B, 0J8371BSRV, and  0J8371BHSRV.

Features of the Generac 0J8371C controller:

  • Backlit 2 Line LCD Display which can be set for English, Spanish, French, and Portuguese
  • 50 Occurrence Event Log for unit history and maintenance
  • LED lights indicate system status and maintenance interval
  • Integrated Voltage Regulation
  • Integrated Smart Battery Charging automatically maintains optimum charging level for maximum battery life and safe charging
  • Integrated Electronic Governor to maintain 60 Hz frequency
SKU: 0J8371C Category:


Exercise function is programmable for weekly, bi-weekly, or monthly.
The controller monitors utility voltage and when the voltage drops below a nominal rate it initiates the following sequence of events: starts the generator, allows the generator to come up to normal operating speed for a few seconds, verifies and regulates generator voltage, and energizes the coil in the transfer switch to transfer to generator power. The process is automatically reversed when utility power returns.
This is an illustration of the 0J8371C user interface.
Hunter & Lomison keeps the Generac 0J8371C controller in stock for immediate delivery. If you are unsure which controller your generator uses or have any other questions, please contact us and we will be happy to answer your questions.

Additional information

Weight 2.60 lbs
Dimensions 12.75 × 7.50 × 4.50 in

1 review for Generac Controller 0J8371C

  1. Jim

    Perfect OEM replacement controller. Quick service, thanks!

Only logged in customers who have purchased this product may leave a review.