This hose leaves from the 4 port bleeder housing (right upper port) on the firewall and attaches to the pipe that heads toward the radiator. It fits the late 85 plastic pipes with 1.50 diameter ends or can fit from 83.5 to early 85 vans with 1.25 metal pipes with this hose adapter.
The silicone version is available here.

Ref ID: 025121062C

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