Most Tokheim & National pumps have the back piece on the opposite side
of the reset coupling, on the computer.
The two couplings on the right are for Tokheim pumps,
the one on the right fits almost anything else.
Can anyone tell me if the tall Tokheim 39 has the back part,
AND which is the correct reset coupling for the computer?
It has been a long time since I restored pumps
Veeder Root Rebuilds.....since 1987
Veeder Root Identification CD
Gas Pump Clock Repair