There are 2 drawings for part 621498 available in AirCorps Library

Manufacturer's Drawing

Packard,   Packard V-1650 Merlin Drawings,   Page: --,   Revision: n/a  

ASSEMBLY - COOLANT FRONT OUTLET “B” UNIT FRONT CONNECTION

Associated Aircraft:   V-1650  

Manufacturer's Drawing

Packard,   Packard V-1650 Merlin Drawings,   Page: --,   Revision: hh  

ASSEMBLY - COOLANT FRONT OUTLET “B” UNIT FRONT CONNECTION

Associated Aircraft:   V-1650