Gates 31456 Fuel Cap Tester Adapter

Gates Fuel Cap/System Tester Adapter 31456

The Gates 31456 Fuel Cap/System Tester Adapter is a threaded adapter for use with radiator cap testers when checking fuel cap and fuel system sealing. It is built for threaded filler neck applications and supports diagnostic work across a wide range of Honda, Toyota, Volkswagen, Acura, Nissan, Lexus, Chevrolet, GMC, and other listed vehicles.

Gates Fuel Cap/System Tester Adapter 31456 is part of the Fuel Cap/System Tester Adapter line, made for technicians who need a threaded connection between the tester and the vehicle’s fuel cap or filler neck. This adapter helps create the proper interface for pressure testing on many import and domestic applications, including threaded filler neck designs found on select Honda Civic, Toyota Camry, and Volkswagen Jetta models.

Key Features

• Threaded cam type for secure tester connection
• Fuel Cap Tester Adapter attachment type
• For use with radiator cap testers
• Supports fuel cap and fuel system pressure testing
• Fits a broad range of listed vehicles from 2001-2021
• Gates part number 31456 for identification and ordering

Detailed Description

This adapter is used to connect a radiator cap tester to threaded fuel cap and filler neck designs so the system can be checked for sealing issues. The Gates 31456 is listed for many applications, including 2012-2021 Honda City, 2012-2020 Honda Fit, 2012-2014 Honda Accord, 2007-2011 Toyota Camry, 2009-2013 Volkswagen Jetta, and 2006-2011 Audi A4. It is also listed for many other Acura, Buick, Cadillac, Chevrolet, GMC, Lexus, Mitsubishi, Nissan, Subaru, Toyota, Volkswagen, and Volvo models.

This part cross-references Febi-Bilstein 12410 and Motorad 12410S for the same application.

What It Helps Diagnose

• Fuel cap sealing problems that can trigger evaporative emissions concerns
• Leaks at threaded filler neck connections
• Pressure loss during fuel system testing
• Improper tester-to-cap adapter fitment
• Repeat testing on vehicles with threaded fuel cap designs

Installation Notes and Tips

• Use only with a compatible radiator cap tester.
• Confirm the vehicle has a threaded filler neck or threaded fuel cap design before testing.
• Match the adapter to the listed year, make, and model application.
• Inspect the tester connection and fuel cap interface before pressurizing the system.
• Follow the tester manufacturer’s procedure for safe diagnostic use.

Quality Assurance

Gates manufactures this adapter as a dedicated diagnostic tool component for fuel cap and system testing. Part number 31456 is specified for threaded applications and is supported by the published vehicle fitment list.