The ARP thermostat housing bolt kit for GM Duramax LB7-LBZ 6.6L applications includes stainless-steel 12-point fasteners intended for thermostat housing attachment. This street-pattern hardware set is offered as a direct-fit replacement to simplify reassembly during cooling system service, providing corrosion-resistant stainless construction and correct fastener geometry for secure housing clamping on Duramax engines.
ARP GM Duramax LB7-LBZ 6.6L SS 12pt (street) thermostat housing bolt kit