Sinister Diesel LB7 & LLY "Welded" Water Pump | 2001-2005 GM Duramax 6.6L

Proper heat management from the cooling system is crucial on modified engines when you want trouble-free and reliable performance. The factory Duramax water pump is known to slip under load and can serious problems and serious repair bills on modified high-horsepower applications. This updated design is a drop-in replacement for the factory water pump and uses precision TIG welds to secure both the impeller and pump gear to the shaft. If your 2001-2005 Duramax powered truck is running a tuner, a bigger turbo, or bigger injectors, or if it's just time for routine maintenance, get peace of mind with the Sinister Diesel Welded Duramax Water Pump.

Features:

• TIG welded on the Gear side for high strength and slip-free operation
• Drop-in replacement for LB7/LLY factory water pump
• Meets or exceeds OEM specifications
• 2 Year Warranty
• Sinister Diesel "Welded" Water Pump
• O-Ring
• Thermostat Gasket