Part Number 4086800 is a genuine New Old Stock MoPar coolant
recovery tank with cap. Large plastic unit mounts along the top of the
radiator tank and radiator support yoke. The first thing you see when you
open the hood! Originals are always yellowed & cracked. Fits all
72-78 D, W models including Little Red Expess.
If you have a question about this or other parts, e-mail
me and one of our parts technicians can research it for you.