GM Radiator coolant overflow tank from a 1986 Buick Regal.

Coolant Overflow tank with cap and drain tube (has silicone around drain tube at tank, see photo)

Please see photos for details

Parts Numbers:

Tank [25525470]

Cap [Z 4658    2]  

15 ½ in+ of drain tube with factory clamps

Sold where is, as is.