2007.5-2010 GM 6.6L Duramax Modified Coolant Tube

PPE’s modified coolant tube for LMM Duramax 6.6L is designed for use with PPE Up-pipes and Manifolds. Our experts cut, reposition and weld the coolant tube for proper clearance. The coolant that flows through the tube provides heat to the heater core for the in-cab AC/Heat system.