Gates 31723 Fuel Tank Cap

OE Equivalent Fuel Cap for Classic Imports

The Gates 31723 OE Equivalent Fuel Cap is built for drivers who need a direct replacement fuel tank cap with OE-style fit and function. It is made for shallow cam filler necks and supports vented, non-vented, and vented anti-surge applications, making it a practical choice for older Toyota, Nissan, Subaru, and Chrysler vehicles.

Gates OE Equivalent Fuel Cap line focuses on rugged construction and OE performance standards for everyday fuel system service. The 31723 is a straightforward replacement for aging caps on vehicles such as the Toyota Land Cruiser, Toyota Pickup, and Nissan 720.

Key Features

• OE Equivalent Fuel Cap design from Gates
• Meets or exceeds OEM specifications
• Rugged, heavy-duty construction
• Fits shallow cam filler necks
• Works with vented, non-vented, and vented anti-surge systems
• Non-locking design
• OE performance rating
• Emission control venting
• Thread diameter: 1.38 in.
• Shell diameter: 2.19 in.
• Depth: 1.33 in.

Detailed Description

Gates Part Number 31723 is an OE Equivalent Fuel Tank Cap engineered for older fuel systems that require a shallow cam style cap with emission control venting. It is built to match OEM specifications for fit and function, helping restore proper sealing at the filler neck while maintaining the original fuel system configuration. This part cross-references Four Seasons 11806 for the same application.

Compatible With select Toyota Land Cruiser, Toyota Corolla, Toyota Celica, Toyota Pickup, Nissan Maxima, Nissan 200SX, Nissan 720, Subaru Standard, and Chrysler applications listed in the fitment data. For buyers searching for a replacement fuel cap for a 1970-1983 Toyota Pickup or a 1980-1986 Nissan 720, the Gates 31723 is a direct OE-style service part.

What It Helps Address

• Loose or worn fuel cap sealing at the filler neck
• Fuel vapor loss caused by an aging cap
• Emission control issues related to a faulty cap
• Fitment problems on shallow cam filler necks
• Replacement needs for original-style fuel tank caps on classic vehicles

Installation Notes and Tips

Verify filler neck style before ordering, especially on shallow cam applications. Confirm the thread diameter, shell diameter, and depth against the original cap. Use the vehicle fitment list to match the exact year and model, including notes such as California emission system or April-and-older applications where shown. Fits 1985-1989 Toyota Land Cruiser, N/A; Fits 1980-1986 Nissan 720, N/A; Fits 1970-1983 Toyota Pickup, N/A.

Quality Assurance

Gates builds this OE Equivalent Fuel Cap to meet or exceed OEM specifications and to provide OE performance for fuel system service. The design is intended to deliver consistent fit and sealing characteristics for the listed applications.