Tool Box - Service Parts Vented Gas Cap

The Tool Box - Service Parts Vented Gas Cap is a heavy-duty replacement fuel cap designed for transfer tanks, auxiliary fuel systems, and service equipment where proper venting is critical. Built for contractors, fleet operators, and maintenance professionals who rely on portable fuel storage, this vented cap prevents vacuum lock while allowing safe fuel dispensing in field conditions. The twist-on design ensures quick installation and removal without special tools.

Manufactured by DEE ZEE under model DZ GASCAP2, this cap features steel construction with cadmium plating for superior corrosion resistance—essential for long-term durability in harsh outdoor and industrial environments. The vented design allows air to enter the tank during fuel withdrawal, eliminating the pressure differential that can restrict flow or cause tank collapse. Cadmium plating protects the steel body against rust and oxidation, ensuring a reliable seal and smooth operation season after season.

This cap is ideal for DEE ZEE transfer tanks and compatible auxiliary fuel systems where OEM or aftermarket replacement caps are required. The compact dimensions (4.95 x 3.35 x 7.8 inches) and lightweight design (0.58 lbs) make it easy to carry and store in any vehicle or equipment shed. Installation is straightforward—simply twist onto the fuel filler neck until snug. For operators maintaining fleet vehicles, emergency response equipment, or construction site fuel operations, this vented gas cap provides the reliability needed for uninterrupted fuel access.