DOES NOT FIT 52160 TANK THREADS ARE TO SMALLRUGGED NYLON IS NONREACTIVE TO FUEL AND NONCORROSIVE FOR LONGLIFE. VALVES OPEN AND CLOSE EASILY WITH A QUARTER TURN OF THE SPINDLE.TO INSTALL FUEL VALVE DRILL HOLE WITH A 5/16" DRILL BITTHEN TAP WITH A 3/8" FINE THREAD TAP AND SEAL WITH CLEAR R.T.V. SILICONE Part No: AP1265 Racer Net Availability Shopping Kart 2.30