Generac G039379/39379/039379 1.6L Fiat Fan Belt. This is belt #10 in the second image. The fiat 1.6L uses two belts, one for the fan and one for the water pump. The fan belt is 39379. See here: Generac G039379/39379/039379 1.6L Fiat Fan Belt
Generac replacement parts will also usually fit the following Generac branded generators: Honeywell, Guardian, Siemens, Carrier, Watchdog, Centurion, Eaton & Bryant.
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