Got a Predator 420cc engine from Harbor Freight? This threaded exhaust flange is a simple but super useful part if you're building or modifying a go-kart, mini bike, generator, or any small engine project. It's made to fit perfectly on the exhaust port of the Predator 420, so you can attach a custom exhaust pipe or muffler. The threading is clean and precise, making installation straightforward—just screw it on. It's brand new, comes in a basic finish (usually bare metal), and is sold as a single piece. No gaskets or bolts included, so you might need those separately depending on your setup. Great for DIY folks, hobbyists, or small engine mechanics who want to upgrade or repair their exhaust system. Affordable, solid, and does exactly what it says. Always double-check your engine model before ordering, but if you've got that 420cc Predator, this flange should work like a charm. A must-have for custom builds!
Free 30-day returns 
Free 30-day returns
