Fuel Pump Universal 12 Volt Electric | Sierra 18-7333 Sierra Universal 12 Volt Electric Fuel Pump | 18-7333 Electric fuel pump kit for universal marine applications includes pump, bracket, isolators, hardware & wire leads. Can be used in both gasoline & diesel fuel applications 12 volt DC operation 72 GPH at 5.75 PSI 1/4 in. NPSF For use with 3/8 in. marine fuel hose Pressure safety switch P/N OP72533 is recommended to prevent engine damage if engine stops without the ignition switch in the off position Installation of a fuel filter on the inlet side of pump is recommended to prevent damage to pump and premature pump failure Meets USCG regulations 183.524 and 183.590 Replaces Kohler 229051-S | Replaces Marine Power 438108 | Replaces Indmar 501006