Billet Thermostat Housing Kit W/Coolant Return for 06-10 Chevrolet/GMC Duramax LBZ/LMM Raw HSP Diesel DODGE/Jeep Wrangler (JL)/Gladiator (JT) Part Number: 50-70042D

Part Number: 50-70042D

Blocks are made from cast iron for strength

the SR-Series PRO now offers more light output than ever before with up to 111 percent more raw lumens

Two year warranty

Combo lens for Phoenix XL Pod light blending distance and width

Billet Thermostat Housing Kit W/Coolant Return for 06-10 Chevrolet/GMC Duramax LBZ/LMM Raw HSP Diesel DODGE/Jeep Wrangler (JL)/Gladiator (JT) Part Number: 50-70042DHSP 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