Melling M491 Features:

Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. Gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.

• Width: 5.225 in.
• Height: 10.0 in.
• Gasket Or Seal Included: Yes
• Mounting Hole Quantity: 4
• Housing Material: Aluminum
• Drive Type: Timing Chain
• Mounting Hole Diameter: 0.25 in.
• Gear Material: Steel
• Grade Type: Standard Replacement
• Oil Pump Type: Gear
• Pickup Tube Diameter: 1.0 in.
• Drive Shaft Included: No
• Adjustable Bypass Pressure: No
• Additional Cover Shaft Support: No
• Alternate Pressure Springs Included: No
• Anti-Cavitation: No
• Adjustable Pickup Screen: No
• Drive Sprocket Included: Yes
• Oil Pump Pressure Type: Standard Pressure
• Oil Pump Volume Type: Standard Volume
• Bolts Included: No
• Bushing Included: No
• Cotter Pin Included: No
• Cover Material: Aluminum
• Finish: Rust Preventative
• Gears Included: Yes
• Governor Spinner Included: No
• Guide Included: No
• Inlet Size (in): 1.000
• Intermediate Shaft Included: No
• Nylon Bushing Included: No
• O-Ring Included: Yes
• Pickup Screen Included: No
• Pump Cover Included: Yes
• Shaft Material: Not Applicable
• Spacer Included: No
• Timing Cover Included: No
• Washers Included: No