Product Description

Melling MWP-501WT Water Pump for GM 4.8L 5.3L 6.0L 6.2L Engines

Includes OEM-Temperature Thermostat and Thermostat Housing

Restore coolant circulation in a compatible GM truck, SUV or van with the Melling MWP-501WT replacement water pump. Designed for the listed 4.8L, 5.3L, 6.0L and 6.2L engine applications, this complete assembly includes an OEM-temperature thermostat and thermostat housing for a convenient cooling-system replacement.

The MWP-501WT features a cast-aluminum housing, steel impeller, double-lip bearing seals, severe-duty bearings and heat-treated bearing shafts. Each water pump is individually leak-tested under replicated engine operating conditions, laser-etched with the Melling logo and part number, and assembled and tested in Jackson, Michigan.

Key Features & Benefits

Thermostat and Housing Included: The Melling MWP-501WT includes an OEM-temperature thermostat and corresponding thermostat housing. Supplying these components with the replacement water pump provides the major application-specific cooling-system components together in one package.
Cast-Aluminum Housing and Steel Impeller: Combines a cast-aluminum water-pump housing with a steel impeller for the listed GM V8 applications. These product-specific materials provide the construction required for dependable coolant circulation and regular vehicle operation.
OE-Quality Sealing Components: Double-lip bearing seals help prevent coolant and vapor intrusion, while the mechanical seals are designed to withstand severe operating temperatures. OE face materials support effective heat transfer and low friction within the water-pump assembly.
Severe-Duty Bearings and Shafts: Uses precision-ground, lubricated OE-quality bearings paired with heat-treated bearing shafts. The shafts are ground to match the rollers, supporting the precise internal fit required for dependable water-pump operation.
Individually Leak-Tested: Every pump is leak-tested under conditions designed to replicate engine operation before leaving the facility. Each assembly is tested in Jackson, Michigan and laser-etched with the Melling logo and MWP-501WT part number for clear product identification.