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Vehicle Info NeededMELLINGPART NUMBER: 689-M-55A
M-55A Stock Replacement Oil Pump
$7771
Ships on Sep 04, 2026
Lowest Price Guarantee- Stock Replacement Oil Pump
- Alternate Pressure Springs Included: Yes
- Drive Type: Drive Shaft
- Gasket Or Seal Included: No
- Gear Type: Spur Gear
- Grade Type: Regular
Melling M-55A Features:
Made in USA. 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.
- Height: 4.14 in.
- Height: 105.0 mm
- Housing Material: Cast Iron
- Mounting Hole Diameter: 0.25 in.
- Mounting Hole Diameter: 6.0 mm
- Mounting Hole Quantity: 2
- Oil Pump Pressure Type: Standard Pressure
- Oil Pump Type: Gear
- Oil Pump Volume Type: Standard Volume
- Width: 3.24 in.
- Width: 82.0 mm
Part TypeOil Pump
BrandMELLING
Package Height4.14 in.
Package Width3.24 in.
Package Length6.1
Weight4.65 PG
Part CategoryReplacement Parts
Drive Shaft IncludedNo
Housing MaterialCast Iron
Mounting Hole Quantity2
Adjustable Bypass PressureNo
Bolts IncludedNo
Spacer IncludedNo
Alternate Pressure Springs IncludedNo
Inlet Size (In.)0.500
O-Ring IncludedNo
Washers IncludedNo
Mounting Hole Diameter0.25 in.
Oil Pump Pressure TypeStandard Pressure
Bushing IncludedYes
Oil Pump TypeGear
Cover MaterialCast Iron
Shaft MaterialNot Applicable
Gear MaterialSteel
Pickup Tube Diameter0.500 in.
FinishRust Preventative
Gasket Or Seal IncludedNo
Cotter Pin IncludedNo
Gear TypeSpur Gear
Drive TypeDrive Shaft
Oil Pump Volume TypeStandard Volume
Part FitmentDirect Fit
Grade TypeStandard Replacement
Timing Cover IncludedNo
Vendor Part NumberM-55A
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
