Generac 0K0258J 20kW Identity Resistor Evolution. These are serial number specific and MUST be correct for the unit to operate normally. If you have any questions about which identity resistor you need, please contact us with the serial number for your generator!
These Generac identity resistors are used to tell the Evolution 1.0 and Evolution 2.0 controllers which generator they are installed in. If there is a problem, you'll get a 'Model Ident Problem, Fix Harness Resistor' warning on the screen.
Generac replacement parts will also usually fit the following Generac branded generators: Honeywell, Guardian, Siemens, Carrier, Watchdog, Centurion, Eaton & Bryant.
If you need Generac generator troubleshooting support, please visit our interactive forum