This is the Piston Pin Retainer (part #18) for the Fuji Imvac BT-50SA Engine|
and (part #13) for the BT-86 Engine.
This Retainer installs on either side of the Piston Pin
to hold the Pin inside the Piston.
Constructed of steel, resembles a lower case "e".
One Piston Pin Retainer for the Fuji Imvac BT-32A, and the BT-86
Inserting Piston Pin and installing Pin Retainers on each side of
Two Pin Retainers are required per Piston
Fuji Imvac is NOT related to the original Fuji Engines sold by MECOA