Discourage fuel theft with the Neck-it! anti-siphoning device from FuelDefend.

  • Products available for all Class 7 & 8 model trucks in North America.
  • Durable with tough, thick side walls.
  • Designed to obstruct tampering with or removal of fuel.
  • Doesn’t restrict fuel flow during fueling. Tested to 50 gallons per minute flow rate.
  • Easy installation procedure and no maintenance required.
  • No riveting or drilling; and no damage to the fuel tank neck.