need help with troy built/ brigg carb identification

I'm working on a troy built 2700 psi pressure washer with a briggs and stratton engine. I cannot find a model number on the engine but need a new carburetor for it since I accidently cracked it. The number 799154 is on the carb but when searching for it diferent carbs come up. Not sure where to look. I pulled the plastic cover from the top but no numbers anywhere on the engine. Any help appreciated

need help with troy built/ brigg carb identification