The
mold and die produced to manufacture this part were made from an Original
N.O.S. GM part. They turned out beautiful. This part supports the heater core
tube that passes through the fiberglass A/C evaporator box. Without this seal
in good condition the weight of the heater core supply hose can break the solder
joint at the heater core. At this price, it is not worth the risk of over
heating your engine or damaging your interior from anti freeze or just the pain
and cost of replacing your heater core. The pictures show the seals great fit
on the car and also a cut away cross section to show the exact metal insert.
100% MADE IN THE USA !!! Thank you!