FTA-C-13 Locking Diesel Fuel Cap

Made in the USA!

Safety chain and crossbar included. 
Designed for use only on vehicles equipped 
with properly vented fuel systems. 
Used on Freightliner M2 - Box Trucks. 

Description: Female, Non-Vented, Locking
Nominal Size: 2-1/2 Inches
Measures 2-3/8" across threads
Threads: 8 Per Inch
Finish: Aluminum
Application: Diesel
Heavy Duty Locking Cam.

Freightliner M2 after November 2001. This cap will not work on pre November 2001 Freightliners with rectangular steel tanks and an original brass fuel cap.

For Anti-Siphon Tube use FTA-2-7, do not use in combination with a locking fuel cap.

The FTA-C-13 Locking Diesel fuel cap is designed to work on a 2-3/8" fill necks.  
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.