Gates 31646 Fuel Tank Cap

Overview of Gates OE Equivalent Fuel Cap 31646

The Gates OE Equivalent Fuel Cap 31646 is designed to meet original equipment performance standards for a range of domestic vehicles. This fuel tank cap provides vented anti-surge functionality and a shallow cam design, ensuring proper fuel system pressure and vapor management for models like Chevrolet Camaro, Ford Thunderbird, and Buick LeSabre.

• OE equivalent fuel cap with vented anti-surge design
• Shallow cam type for secure sealing
• Thread diameter of 1.38 inches and depth of 1.25 inches
• Shell diameter measures 2.19 inches
• Compatible with multiple GM and Ford models

Detailed Product Features and Specifications

The Gates OE Equivalent Fuel Cap 31646 features a vented anti-surge system that helps maintain proper fuel tank pressure and prevents vapor lock, which is critical for smooth engine operation. Its shallow cam design ensures a reliable seal without excessive torque, reducing wear on the fuel tank neck. The cap’s thread diameter of 1.38 inches and depth of 1.25 inches are engineered to match original equipment specifications, providing a precise fit. With a shell diameter of 2.19 inches, this fuel cap is designed for easy handling and installation.

This fuel cap is non-lockable and rated for OE performance, making it a direct replacement for factory-installed caps on vehicles such as the Pontiac GTO, Chrysler Town & Country, and Lincoln Continental. The vented design allows for controlled pressure release, which helps prevent fuel system issues related to vapor buildup.

About the OE Equivalent Fuel Cap Product Line

The Gates OE Equivalent Fuel Cap product line focuses on delivering fuel caps that meet or exceed original equipment specifications. These caps are engineered to provide reliable sealing, proper venting, and durability for a wide range of domestic vehicles. The OE Equivalent Fuel Cap 31646 is part of this line, offering a balance of performance and fitment accuracy for models from Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, Lincoln, Mercury, Oldsmobile, and Pontiac.

Common Applications and Problem Solving

• Replacement for worn or damaged fuel tank caps on Chevrolet Camaro and Ford Capri
• Prevents fuel vapor leaks and reduces evaporative emissions
• Helps avoid fuel system pressure issues that can cause engine hesitation
• Eliminates fuel odor caused by faulty or missing caps
• Maintains proper fuel tank venting to prevent vapor lock

Installation Notes and Tips

• Ensure the fuel tank neck threads are clean and free of debris before installation
• Align the cap threads carefully and turn clockwise until snug; avoid over-tightening
• Check for a secure seal by listening for a click or resistance when tightening
• Regularly inspect the cap for cracks or wear to maintain fuel system integrity

Quality Assurance and Warranty

The Gates OE Equivalent Fuel Cap 31646 is manufactured to meet OE performance standards, ensuring compatibility and durability. Gates products typically come with a limited warranty against defects in material and workmanship, providing confidence in the product’s reliability. For specific warranty details, refer to Gates’ official documentation or contact authorized distributors.