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. Additional Attributes: GTIN: 00729295104735 Gear Material: Billet Steel Width: 2.90 Height: 4.75 Grade Type: Performance Gasket Or Seal Included: Yes Mounting Hole Quantity: 2 Housing Material: Cast Iron Drive Type: Drive Shaft Oil Pump Type: Gear Pickup Tube Diameter: 0.75 Drive Shaft Included: Yes Mounting Hole Diameter: 0.25 Adjustable Bypass Pressure: No Additional Cover Shaft Support: Yes Alternate Pressure Springs Included: Yes Gear Type: Shark Tooth Helical Gear Anti-Cavitation: No Oil Pump Pressure Type: High Pressure Oil Pump Volume Type: High Volume Additional Volume Over Stock Percentage: 10% Extened Information: Emissions : Legal US Life Cycle Status: Available To Order Packaging: Quantity of Each: 1.0 Package UOM: EA Dimension: 6.0000 x 5.7500 x 4.7500 inches PDF: M55099 REVB