Generac G029673/029673/29673 Bridge Rectifier Diode. Often used in the field boost circuit of older liquid cooled Generac generators.
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