Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. High pressure performance upgrade for the M-54F. 30% increase in pressure over the 10540 oil pump. The housing is CNC machined and phosphate coated. Built with billet steel gears. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Product Features:30% Higher pressure high performance upgrade of the M-54FCNC machined phosphate coated cast iron housing and coverStandard billet steel spur gearsIncludes 3/4 inch diameter press fit screen and installation gasket