I have a new heater core, but my "gasket" that goes over the two fittings and seals to the firewall is shot. Anyone know the part number. I bought one before but can't seem to find the info. I looked at LMC truck and Chevy Duty but could not find it.
FYI: this is a non A/C unit.
FYI: this is a non A/C unit.
