Vented Diesel Fuel Cap With 2 Inch Threaded Neck For Transfer Tanks And Diesel Fuel Tanks Venting Pressure Gas Fill Lid For Your Pickup Or Work Truck Tool Box NPT 2 Inch Opening

Ventilated 2-Inch Diesel Cap for Transfer Tanks
✔️ 2 in. NPT vented cap with lock-ready security, single unit

The vented diesel fuel cap is designed for transfer tanks, diesel tanks, and auxiliary fuel tanks. It uses a 2-inch NPT opening and is built to withstand harsh job-site conditions, making it ideal for pickups, work trucks, and farm equipment with standard tank bung bases.

✅ 2 inch NPT threading fits standard tank bung bases
✅ Dual-direction venting prevents vacuum formation and pressure buildup
✅ Lock-ready security with padlock hole (padlock not included)
✅ Spring-loaded gasket seals to prevent leaks and venting
✅ Heavy-duty cast iron base for long-term durability

💡 What is a vented diesel cap used for and why should I choose one for my fuel tanks? This handy cap helps vent pressure, prevent vacuum, and guard against theft.

- handy venting reduces pressure buildup in transfer tanks and prevents tank collapse
- allows air to vent safely while fueling or drawing fuel
- lock-ready design deters theft when used with a padlock
- fits standard 2 in NPT tank bung bases on many pickups and work trucks