Lucas fits 6N6 – 3B inside Genuine Lucas Battery Box (Large type B38-6) supplied with Black Top.
Empty PU7 flexible rubber battery box.
Slightly larger internal diameter to accept Lucas batteries (WW09226L).
Approximate Dimensions :-
Length: 116mm (4-1/2″)
Width: 88mm (3-1/2″)
Height: 162mm (6-1/2″)
OEM: PU7D