Small engine trouble? This genuine Briggs & Stratton carburetor might be your fix! It's part number 799871, which also replaces the older 790845. This is a brand new, OEM carburetor straight from Briggs & Stratton – not a cheap knockoff. If your lawn mower, generator, or other small engine is hard to start, running rough, stalling, or flooding, a new carb often solves the problem. Rather than trying to clean a gummed-up old carb (which can be frustrating), sometimes it's easier to just replace it. No UPC, but with Briggs & Stratton parts, the MPN is what matters. Installation is pretty straightforward if you're handy: disconnect the fuel line, remove the old carb, and bolt this one on. Make sure to check your engine model to confirm this is the right carb, but if you've got a Briggs engine that uses the 799871 or 790845 carb, this will get you running smoothly again. Keep your equipment in top shape!