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.
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