Lock-On Fuel Cap Guard for Peterbilt

Prevent fuel theft with a heavy-duty lock-on guard. This aluminum guard completely covers the fuel tank cap to deter would-be thieves. Protect your valuable investment. Padlocks included.
Fits Peterbilt with 2" or 2-1/2" filler neck flap. Filler neck is 4-1/4" diameter. Compatible on Peterbilt models only. Measure, in inches, across fuel tank filler neck opening including threads if possible.
Sold as a pair.