This patented snap-in Anti-Siphon unit is for Heavy-Duty Tanks that have a 4 Inch Filler Neck. These units are an inexpensive and effective solution to help prevent fuel theft. Made in the U.S.A. from the finest quality materials, this Anti-Siphon unit is designed to foil the most determined fuel thief.
Fits Trucks:
Tanks with a 4 Inch Inside Diameter Filler Neck
Tanks with the following OEM part numbers (underneath gas cap): TM 90 04100 (Freightliner)
Fits a 4 Inch Inside Diameter filler neck
7.0 Inch Length
Fits Reefer Tanks and Medium-Duty International Trucks
Easy Snap-In Installation
Guaranteed for the life of the tank they are installed in
Does not restrict fueling
No splash back
Purchase unit with or without a Heavy Duty Strainer installed