Leak Defender® + Anti-Siphon for Macks 3.5″



3-PC. Fuel Tank Neck Adapter System Consisting of a Collar + Fuel Cap + Anti-Siphon. Designed to Stop Fuel Cap Leaks on Mack 3.5″ Trucks. 100% Money Back Guaranteed! Also Included is an Anti-Siphon Tube to Help Prevent Fuel Theft.

Check Out How to Easily & Quickly Install the Leak Defender® Here.

NOTE: Sold Individually. If You Have Dual Tanks, You Will Need To Purchase Two.