Billet Thermostat Housing Kit W/Coolant Return for 06-10 Chevrolet/GMC Duramax LBZ/LMM Polar White HSP Diesel Suspension Lifts " All 2007-2016 6

All 2007-2016 6

required extension harnesses

Year Make Model Submodel Notes 2014 GMC Sierra 1500 Denali 2015 GMC Sierra 1500 Denali 2016 GMC Sierra 1500 Denali

2020 GMC Sierra 3500 HD AT4 Gas Crew Cab Pickup

Billet Thermostat Housing Kit W/Coolant Return for 06-10 Chevrolet/GMC Duramax LBZ/LMM Polar White HSP Diesel Suspension Lifts " All 2007-2016 6HSP Billet Thermostat Housing Kit W Coolant return for 2006 2010 Chevrolet GMC Duramax LBZ LMM. You should be running the forward facing thermostat housing kit, with coolant return if you have a stock turbocharger in the valley. This coolant return has a provision to allow coolant to return from the turbocharger Many of the Chevy Duramax coolant lines are routed in a way that makes it difficult to upgrade turbochargers or other performance