DHD 007-0292 Thermostat Lid Coolant Passage Plug LB7 LLY LBZ

DHD 007-0292 Thermostat Lid Coolant Passage Plug LB7 LLY LBZ

This billet aluminum coolant plug will plug the open port on the thermostat coolant bridge on all LB7, LLY, & LBZ Duramax Diesels when removing the heater core hose.

This plug is popular among pullers and racers who wish to delete the heater and its associated plumbing.

Comes with O-ring.