Overview
The Dee-Zee DZGASCAP is a vented gas cap, part number DZGASCAP, for tool box or liquid transfer tank fuel use.
It is universal fit, so compatibility depends on the tank and filler opening. The cap is designed to help protect shift control valves.
Venting and fuel cap care
A vented cap lets air move in and out of the tank as fuel level changes, which helps keep pressure stable during pumping and temperature swings. A sealed cap that does not vent can cause pressure build-up and rough running. Keeping the cap seated and free of dirt supports steady operation.
Inspect the cap regularly for cracked housings, worn gaskets and a loose fit on the filler neck. Clean the threads before reinstalling, and replace the cap if the seal no longer grips. Fuel system work often prompts a check of the cap, so look at it whenever the tank is opened.
- Check the gasket for cracks or flattening
- Clean debris from the threads before fitting
- Seat it firmly without overtightening
- Replace the cap if the vent is blocked
Specifications
| Brand | Dee-Zee |
|---|---|
| Part number | DZGASCAP |
| Type | Vented gas cap |
| Fitment | Universal fit (per manufacturer) |
Vehicle fitment
It is a universal fit cap rather than a vehicle-specific part. Match the cap’s thread and opening against your tank before installing it.
Confirm your vehicle’s year, model and trim before ordering.
What’s included
Check whether the cap includes a gasket, seal or tether before installing it.