Generac 0C3168 Grounding Lock Washer 5/16-M8. Used in locations that require grounding through the paint or powder coating. Be sure to check that the washer pierced the paint and you have a good connection to ground!
Generac replacement parts will also usually fit the following Generac branded generators: Honeywell, Guardian, Siemens, Carrier, Watchdog, Centurion, & Bryant.
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