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Replacement Parts

Engine Cooling & Climate Control

Sinister Diesel "Welded" Water Pump for 2001-2005 Duramax LB7 / LLY

Sinister Diesel "Welded" Water Pump for 2001-2005 Duramax LB7 / LLY
- TIG-Welded Impeller & Gear – Precision welds on the gear side lock the impeller and gear to the shaft for slip-free, reliable coolant flow under heavy loads.
- Direct OEM Replacement – Drop-in design for 2001–2005 Duramax LB7 and LLY engines installs using factory mounting points—no modifications needed.
- Slip-Resistant Performance – Builds on the stock pump’s design to eliminate common slipping issues, even when running a tuner, larger turbo, or upgraded injectors.
- Engineered to Factory Specs – Meets or exceeds OEM standards for flow rate, durability, and long-term cooling efficiency.
- All-Inclusive Install Kit – Includes the welded water pump, precision O-ring, and thermostat gasket for a complete, leak-free swap.

Country	USA
Brand	Sinister Diesel
Manufacturer	Sinister Diesel
Binding	Automotive
ItemPartNumber	SD-WWP-01
Model	SINSDWWP01
Warranty	Manufacturer Warrranty
UnitCount	1
UPCs	841788101301
EANs	0841788101301
ReleaseDate	0000-00-00

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