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Vehicle Info NeededMELLINGPART NUMBER: 689-M555
M555 Stock Replacement Oil Pump for 2014-2020 Cadillac, Chevrolet, and GMC 4.3L, 5.3L, 6.2L
$28999
Ships on 10/26/2026
Lowest Price GuaranteeStock Replacement Oil Pump2014-2020 Cadillac, Chevrolet, and GMC 4.3L, 5.3L, 6.2L See Fitment Tab for All Applications Crankshaft Drive Type No Adjustable Bypass Pressure Individually Tested for Pressure and Flow Sold Individually
The Melling M555 Stock Replacement Oil Pump is a crankshaft-driven direct-fit OE replacement for a wide range of domestic engine applications. Every Melling oil pump is precision-machined to close tolerances and individually tested for pressure and flow to ensure proper engine lubrication under all operating conditions.
Melling M555 Stock Replacement Oil Pump Features:
- See Fitment Tab for all vehicle applications
- Crankshaft drive type
- No adjustable bypass pressure — stock OE-equivalent setup
- Precision-machined gears for proper engine pressure and efficient operation
- End plates precision ground for maximum wear resistance
- Individually tested for pressure and flow under simulated engine conditions
- Sold Individually
Part TypeOil Pump
BrandMELLING
Package Height6.500 in.
Package Width9.250 in.
Package Length10.0
Weight6.95 PG
Part CategoryReplacement Parts
Housing MaterialCast Aluminum
Mounting Hole Quantity4
Adjustable Bypass PressureNo
Bolts IncludedNo
Spacer IncludedNo
Alternate Pressure Springs IncludedNo
Anti-CavitationNo
Inlet Size (In.)1.500
O-Ring IncludedYes
Washers IncludedNo
Mounting Hole Diameter0.375 in.
Oil Pump Pressure TypeStandard Pressure
Bushing IncludedNo
Oil Pump TypeRotary
Cover MaterialCast Iron
Shaft MaterialNot Applicable
Pickup Tube Diameter1.500 in.
FinishRust Preventative
Adjustable Pickup ScreenNo
Gasket Or Seal IncludedNo
Cotter Pin IncludedNo
Drive TypeCrankshaft
Solenoid IncludedYes
Oil Pump Volume TypeStandard Volume
Part FitmentSemi Universal
Grade TypeStandard Replacement
Timing Cover IncludedNo
Rotor MaterialSteel
Vendor Part NumberM555
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
