Gates 31624 Fuel Tank Cap

OE Equivalent Fuel Cap for Ford and Mercury

The Gates 31624 OE Equivalent Fuel Cap is built for dependable sealing on classic Ford and Mercury applications. It is a vented anti-surge fuel tank cap made to meet or exceed OEM specifications, with rugged construction for everyday service.

Use this Gates fuel cap when you need an OE-style replacement for a shallow cam filler neck on select Ford Mustang, Ford Econoline, Ford F-Series, and Mercury Villager applications.

Key Features

• OE Equivalent Fuel Cap design for factory-style fit and function
• Vented anti-surge venting for the listed applications
• Fits shallow cam filler necks
• Heavy-duty construction for fuel system service
• Meets or exceeds OEM specifications
• Non-locking design
• Gates part number 31624

Product Details

The Gates 31624 is part of the OE Equivalent Fuel Cap line, a product line focused on direct-replacement fuel caps built to match original equipment requirements. This cap is specified as vented anti-surge, with a 1.5 thread diameter, 3.75-inch shell diameter, and 1.41 depth. It is listed for shallow cam filler necks and is not lockable. For buyers searching for a fuel tank cap for a Ford Mustang, Ford Econoline, or Ford F-150/F-250/F-350 application, this part provides an OE-style replacement option with the correct venting style for the listed vehicles.

This part cross-references Dorman - HELP 46106 and Standard Ignition S-24 for the same application.

What It Helps Solve

• Loose or worn fuel cap sealing on listed Ford and Mercury vehicles
• Fuel vapor loss caused by an aging cap seal or venting issue
• Incorrect replacement cap fitment on shallow cam filler necks
• Fuel tank cap replacement needs for classic Ford Mustang and Econoline models
• OE-style service replacement for vented anti-surge fuel systems

Installation Notes and Fitment

Verify filler neck style before installation. This cap is for shallow cam filler necks and is listed for vented anti-surge applications only. Confirm the vehicle does not use an evaporative emission system where noted in the fitment data.

• Fits 1975-1977 Ford E-100 Econoline, N/A; W/O Evaporative Emission System
• Fits 1975-1977 Ford E-100 Econoline Club Wagon, N/A; W/O Evaporative Emission System
• Fits 1975-1977 Ford E-150 Econoline, N/A; W/O Evaporative Emission System
• Fits 1975-1977 Ford E-150 Econoline Club Wagon, N/A; W/O Evaporative Emission System
• Fits 1975-1977 Ford E-250 Econoline, N/A; W/O Evaporative Emission System
• Fits 1975-1977 Ford E-250 Econoline Club Wagon, N/A; W/O Evaporative Emission System
• Fits 1975-1977 Ford E-350 Econoline, N/A; W/O Evaporative Emission System
• Fits 1977 Ford E-350 Econoline Club Wagon, N/A; W/O Evaporative Emission System
• Fits 1973-1976 Ford F-100, N/A; W/O Evaporative Emission System; W/Aft Tank
• Fits 1975-1976 Ford F-150, N/A; W/O Evaporative Emission System; W/Aft Tank
• Fits 1973-1976 Ford F-250, N/A; W/O Evaporative Emission System; W/Aft Tank
• Fits 1973-1976 Ford F-350, N/A; W/O Evaporative Emission System; W/Aft Tank
• Fits 1970 Ford Mustang, N/A; W/O Calif. Emission System
• Fits 1968-1969 Ford Mustang, N/A
• Fits 1964-1968 Ford Mustang, N/A; Exc. GT
• Fits 1961-1967 Ford Econoline, N/A; Exc. Cutaway HD
• Fits 1962-1965 Mercury Villager, N/A

Quality Assurance

Gates builds this OE Equivalent Fuel Cap to meet or exceed OEM specifications, using rugged construction suited to fuel system replacement work. The Gates 31624 is engineered as an OE-style service part for the listed Ford and Mercury applications.