Locking Fuel Cap FTA-C-02, 2-1/4 ID Refers International Ford F650 and F750

FTA-C-02 Locking Diesel Fuel Cap

Safety chain and crossbar included. 
Designed for use only on vehicles equipped 
with properly vented fuel systems. 
Used on many Refers, International Medium Duty Trucks and Ford F-650 - F750. 

Description: Female, Non-Vented, Locking
Nominal Size: 2 Inches
Threads: 11-1/2 Per Inch
Across Threads (Cap): 2-1/4"
Filler Neck: 2-5/16"
Finish: Aluminum
Application: Diesel 
Heavy Duty Locking Cam

For Anti-Siphon Tube use FTA-187-75, do not use in combination with a locking fuel cap.
For Non-Locking Cap use FTA-C-98 

Truck Application: International MD-4300-4900 etc., Reefer Trailer Tanks, Some Hino, Isuzu, Ford 650-750, etc.

Application: 2.0”-11.5 NPSH

The FTA-C-02 Locking Diesel fuel cap is designed to work on fill necks with a 2-1/4" inside diameter.  
Use the key to unlock the cap (the key won't come out when it is unlocked) then screw the cap onto the filler neck and turn the key to lock it. When you turn the key the cam will hit the side wall of the fill neck and bite in. It is very important not to over tighten the cap... Do not over tighten the cap when you screw it on.