This gasket fits the tail light that has the 2 piece lens with a reflector underneath. If you have the Earlier tail lamp single piece lens with a reflector underneath then check out our other auction...

This is the Tail Lamp Body to Lens Gasket. 1962-1965 Cloud III & S3 1968-1980 Corniche, Shadow, T, Shadow II, T (from VIN 5001-41573)

This is the tail lamp gaskets.  These are the seals between chrome bezel and base. These are furnished as a pair. 1946-1952 Short boot MkVI & Dawn        

This is the rear reflector. Red in color 1959-1965 Rolls-Royce Late Silver Cloud II (after SAE-389) & Bentley S-2 (after B1

This is the red tail light lens. It fits the tail light with the single lens with a reflector underneath.  L553  If you need the amber lens see part# CD2863