Gates 31730 Fuel Tank Cap

Gates 31730 Regular Locking Fuel Cap

The Gates 31730 Regular Locking Fuel Cap is a direct-fit fuel tank cap for select Ford trucks and vans. It is built to meet OEM specifications and emission requirements while helping seal the fuel system with a lockable design.

For Ford E-150 Econoline, E-250 Econoline, E-350 Econoline, Bronco, F-100, F-150, F-200, F-250, and F-350 applications, this regular locking fuel cap is designed around the listed neck and venting requirements for a proper replacement.

Key Features

• Lockable regular fuel cap design for added fuel tank security
• Emission control venting to support fuel system sealing
• Two-way pressure relief and vacuum relief valve helps the tank breathe while limiting fuel vapor escape
• Built to meet OEM specifications
• Thread diameter: 1.5
• Shell diameter: 2.63 in.
• Depth: 1.94 in.
• Shallow cam design

Product Details

Gates Regular Locking Fuel Cap part number 31730 is a fuel tank cap engineered for vehicles that use a regular locking cap with emission control venting. The cap’s pressure and vacuum relief function supports normal tank operation by allowing airflow management while helping reduce fuel fumes from escaping. Gates 31730 is listed for multiple Ford applications, including 1980-1986 Ford Bronco, 1980-1986 Ford F-150, 1980-1986 Ford F-250, and 1980-1986 Ford F-350, along with select Econoline vans and club wagons that do not use a threaded filler neck.

This part cross-references Dorman - Conduct-Tite 84793 for the same application.

What It Helps Address

• Loose, damaged, or missing fuel tank cap
• Fuel vapor leakage from a worn sealing surface
• Emission control issues related to a faulty cap
• Fuel tank pressure or vacuum imbalance caused by a failing cap valve
• Security concerns on vehicles that require a locking fuel cap

Installation Notes

Verify the filler neck style, thread diameter, and cam type before installation. This cap is listed for regular locking fuel cap applications and for select Ford vans without a threaded filler neck. Confirm vehicle fitment against the exact year, make, model, and fuel tank opening before purchase.

• Fits 1980-1988 Ford E-150 Econoline, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1988 Ford E-150 Econoline Club Wagon, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1988 Ford E-250 Econoline, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1988 Ford E-250 Econoline Club Wagon, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1988 Ford E-350 Econoline, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1988 Ford E-350 Econoline Club Wagon, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1986 Ford Bronco, N/A, Regular Locking Fuel Cap
• Fits 1980-1986 Ford F-150, N/A, Regular Locking Fuel Cap
• Fits 1986 Ford F-200, N/A, Regular Locking Fuel Cap
• Fits 1980-1986 Ford F-250, N/A, Regular Locking Fuel Cap
• Fits 1980-1986 Ford F-350, N/A, Regular Locking Fuel Cap
• Fits 1980-1983 Ford E-100 Econoline, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1983 Ford E-100 Econoline Club Wagon, N/A, W/O Threaded Filler Neck; Regular Locking Fuel Cap
• Fits 1980-1983 Ford F-100, N/A, Regular Locking Fuel Cap

Quality Assurance

Gates manufactures this fuel cap to align with OEM specifications and Federal and State emission requirements for the listed applications.