Melling MWP-502WT Water Pump with Thermostat and Housing for GM LS 4.8L 5.3L 6.0L Engines

The Melling MWP-502WT is a stock replacement water pump engineered for GM LS-series 4.8L, 5.3L, and 6.0L V8 engines found in trucks, vans, and SUVs from 1999 to 2011. As an OEM-level supplier, Melling manufactures this pump to meet or exceed original equipment specifications, delivering reliable coolant circulation and engine temperature regulation right out of the box.

This is a complete replacement kit — the MWP-502WT includes the water pump, OEM-style thermostat, thermostat housing, OE-grade gaskets, and mounting bolts, making it a true drop-in solution that eliminates the need to source additional components separately.

Key Features:

• Complete kit includes water pump, thermostat, thermostat housing, gaskets, and bolts
• Cast aluminum housing for lightweight durability and efficient heat dissipation
• Double-lip bearing seals (TS16949/ISO9001 rated) to prevent coolant vapor intrusion
• Heat-resistant silicone carbide (ceramic) and hard carbon mechanical seals
• Precision-ground, pre-lubricated bearing shaft for long-term durability
• EPDM rubber OE-grade gaskets for leak-free installation
• Steel impeller for sustained coolant flow performance
• Individually leak-tested under simulated engine operating conditions
• Laser-etched with Melling logo and part number for authenticity
• Assembled and tested in Jackson, Michigan using OE-approved components

Hub Height: 6.582 in. (167.20 mm). The MWP-502WT is a direct OEM-style replacement that restores proper cooling system function and is backed by Melling's reputation as a longtime original equipment supplier to the automotive industry.