This pump will install on an engine with a 5/8″ threaded crankshaft. It is 1 1/2″ in and 1″ out/discharge. This could be used on a 2″ or 2 1/2″ dredge. It is capable of pumping up to 125 gpm, and is a complete pump in good condition. Shipping should run about $15.00 to the lower 48.