Generac 0G2387 Stator To Engine Plug. Used to block the hole in the engine where the stator mounts to it. Shown as #3 in the 2nd image (engine is obviously not included).
Generac replacement parts will also usually fit the following Generac branded generators: Honeywell, Guardian, Siemens, Carrier, Watchdog, Centurion, Eaton & Bryant.
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