Pacific Performance Engineering 2001-2005 GM 6.6L Duramax Coolant Bypass Tube - Water Pump to Thermostat Housing
Fits 2001-2005 6.6L Duramax V8 (LB7) · 6.6L Duramax V8 (LLY)
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These parts keep oil, coolant and crankcase vapor where they belong so the engine lasts. This one is the Pacific Performance Engineering 2001-2005 GM 6.6L Duramax Coolant Bypass Tube - Water Pump to Thermostat Housing, listed to fit the 2001-2005 GMC Sierra 2500HD/3500HD with the 6.6L Duramax V8 (LB7) or 6.6L Duramax V8 (LLY).
why this one — No power here by design. This is maintenance you choose to do early. PPE Direct lists it at $129.99, and the fitment above is what the listing itself states, not a guess.
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.