Made in USA. Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shafts for additional support at increased RPM’s, a screw in relief spring plug, CNC machined cover and housing that is manganese phosphate coated, standard volume and high volume patented billet Shark Tooth gears, and a chrome moly drive shaft with steel guide. Includes lower pressure spring and self locking socket head bolts with wrench for use with bolt on screen pumps. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Melling high performance Shark Tooth oil pumps are recommended for all applications where a high performance oil pump is needed.

Features billet steel "Shark Tooth" helical gears.

Relief hole in cover uses screw in plug instead of pressed cup plug.

Housing and Cover are CNC machined and phosphate coated.

Includes +10PSI higher pressure relief spring and optional -10PSI relief spring.

Screw in plug retains relief valve spring instead of pin.

Cover is doweled to the pump housing to assure alignment of the shaft bores.

Includes 12550 chrome moly intermediate shaft with steel guide.

Extended drive and idler shaft for additional support in the cover eliminating dynamic shfaft deflection at increased RPM levels.