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Vehicle Info NeededMELLINGPART NUMBER: 689-MWP-503
MWP-503 Water Pump Fits Select 2004-2009 GM CTS, Corvette, G8 5.7/6.0/6.2/7.0L Engines
$17599
Ships on 10/12/2026
Lowest Price GuaranteeGM LS
Water PumpFits Select 2004-2009 GM CTS, Corvette, G8 5.7/6.0/6.2/7.0L Engines Steel Impeller Standard Rotation Sold Individually
MWP-503 Features:
- Factory leak-tested
- Utilizes original equipment (OE) face materials that provide increased heat transfer and reduces friction
- The bearings are precision ground and pre-lubricated
- The bearing shafts are precision ground to match the water pump rollers and heat-treated for durability
- Features a laser-etched Melling logo
- Designed to meet or exceed OEM specifications and backed by ASE-certified professionals
- Hub Height: 4.730 in. (120.15 mm)
Direct-Replacement Engine Water Pumps
Melling offers replacement engine water pumps that deliver reliable performance and are leak-tested to ensure the highest standards.
Part TypeWater Pump
Product LineMelling Water Pumps
BrandMELLING
Package Height9.4
Package Width13.2
Package Length16.8
Weight12.0 PG
Part CategoryReplacement Parts
Pulley IncludedYes
Installation WarningsNo
Housing MaterialCast Aluminum
Mounting Hole Quantity6
Fan Clutch IncludedNo
Outlet Quantity2
Mounting Hardware IncludedNo
Impeller RotationStandard
Impeller MaterialSteel
Water Pump Drive TypeSerpentine Belt
Includes Back HousingNo
Impeller Vane Quantity7
Hub Height4.75 in.
Thermostat And Housing IncludedNo
Part FitmentDirect Fit
Grade TypeStandard Replacement
Vendor Part NumberMWP-503
Package Qty1
Package TypeEA
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