2 3/8" Locking Diesel Fuel Cap Compatible with 2002 and Up Freightliner M2 Small Semi Box Trucks, Replace# FTA-C-13, With Rubber Seal Ring Safety Chain and 2 Keys Item Description About this item ?NEEDS?Say goodbye to worries about fuel theft or cross-contamination with our anti-theft fuel gas cap. It fits perfectly onto your diesel tank and gives you peace of mind. ?INCLUDING?Our diesel gas cap comes complete with two keys, a security chain and a hanging ring, as well as a rubber sealing ring for extra protection. The upgraded thread design ensures a perfect fit and no leakage. Make sure to measure your fuel tank filler neck for an ID of 2 3/8 in. ?PREMIUM QUALITY?Long life-span matters, that is why our truck lock tank cap is composed of heavy duty aluminum, which can effectively prevent corrosion and rust, greatly increase the service life even in rainstorm or high temperature environment. ?FITS?Compatible with 2002 and Up Freightliner M2 Small Semi Box Trucks (Fuel Tank Must be Vented), Replace# FTA-C-13. And the operation is very simple. Cleaning the fuel filler neck area, use the key to unlock the cover, cover the fuel tank mouth, then screw the cover onto the filler neck and turn the key to lock it. When turning the key, the cam will touch the side wall of the filler neck and bite ( Please note that there is no need to overtighten the cap ) ?12-MONTH WARRANTY? If for any reason at all, you are not fully satisfied with lock cap, simply contact us through amazon message at any time. We will provide comprehensive quality assurance for our product. ? See more product details Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.