For those who are having problems with the OEM fuel pump and having a tough time finding a rebuild kit for the pump, here is our complete fuel delivery kit for the 616-720 Tractors! We designed this system to work off of engine oil pressure by wiring a relay circuit through the special oil pressure switch we supply with the kit.  When the engine is started, and oil pressure is present, pressure closes the oil pressure switch completing the circuit to the electric fuel pump relay and turning on the fuel pump. If the engine stalls or is shut off, the pressure drops, the switch opens and the fuel pump shuts off. At B&B it's SAFETY FIRST!