This is the later Nissan hose with internal braiding within the rubber hose. Preferable to the early external weave, that when exposed to the heat of the engine compartment, would eventually dry rot and burst.
This part mounts onto the heater control valve and passes through the firewall into the heater core inside the passenger compartment.
Fits: 1965, 1966, 1967, 1967 1/2
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