Sinister Diesel
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
SKU: sinSD-WWP-01
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...
Shipping ETA may vary. Call or message for specific timing.
Overview
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., Includes:Sinister Diesel "Welded" Water Pump, O-Ring, Thermostat Gasket.
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
Files & media
Similar Items
Fitment notes (catalog)
2001-2005 Chevy/GMC 2500; 3500; 6.6L
Summarized compatible vehicles also appear under Description → Fitment.
Detailed rows from our confirmed fitment index can be large (dozens to hundreds per part). Load them only when you need year/trim/engine-level links to Shop by Vehicle.