Perfect Fit: The diesel fuel tank cap compatible with 2" NPT threaded tank plug base, fit for Dee Zee Fill-Rite transfer tank caps, suitable for transfer tanks, fuel tanks, gas storage tanks, diesel tanks, auxiliary fuel tanks, mobile fuel tanks, etc. use in various scenarios
Protect Fuel: The fuel tank cap comes with a keyhole that fits a 1/4" - 5/16" diameter shackle padlock (not included), you can lock the fuel tank cap directly, preventing your expensive fuel from being stolen, protecting you fuel safety
Bi-directional Exhaust: The venting pressure tank cap adopts a bi-directional exhaust design. When the cap is loosened, the pressure in the tank is quickly released to the outside, effectively preventing moisture accumulation and ensuring proper air flow circulation. This not only helps prevent condensation in the water tank, but also prevents the formation of a vacuum, effectively preventing problems such as tank collapse that may occur when pumping fuel
Perfect Sealing: The cover is made of high-quality die-cast aluminum alloy material, spring-loaded with high-quality rubber sealing ring inside, which can effectively prevent diesel evaporation and leakage, prevent external dust from entering the fuel system, and provide long-term protection for your fuel tank
Easy to Install: The installation and use of the fuel tank cap is very simple, just align the breather cap with the notch, push down and turn clockwise to fully tighten the diesel tank cap. When you want to remove the fuel cap, please slowly rotate counterclockwise to the notch. to release pressure, push down and twist to lift the plenum cover and remove it