Gates 31842D Fuel Tank Cap

Diesel Fuel Cap for Ford Super Duty Applications

The Gates 31842D is a diesel-only locking fuel cap built for industrial and diesel engine use. It features a green finish, Quick-On cam design, and vacuum-only venting for the specified Ford applications, including Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford E-350 Super Duty fitments.

Gates’ Diesel Only Locking Fuel Cap line focuses on durable fuel system hardware for diesel service. This part number, 31842D, is part of that heavy-duty product line and is intended for vehicles that require a locking cap with the listed thread and shell dimensions.

Key Features

• Diesel only locking fuel cap for diesel fuel tank applications
• Lockable design helps secure the fuel tank opening
• Quick-On cam type for the specified filler neck style
• Vacuum only venting
• Green color for easy identification
• Thread diameter: 1.56 in.
• Shell diameter: 2.69 in.
• Depth: 2.53 in.

Detailed Description

Gates 31842D is a fuel tank cap engineered for diesel service on select Ford trucks and vans. It is listed for 2004-2010 Ford E-350 Super Duty, 2004-2005 Ford E-350 Club Wagon, 2009-2013 Ford F-250 Super Duty, 2015-2016 Ford F-250 Super Duty, 2009-2013 Ford F-350 Super Duty, and 2015-2016 Ford F-350 Super Duty applications. It is also listed for 2008 Ford F-250 Super Duty and 2008 Ford F-350 Super Duty models without a threaded filler neck. If you are searching for a diesel fuel cap for Ford F-250 Super Duty or Ford F-350 Super Duty models, part number 31842D matches the listed configurations.

This part cross-references Gates 10510D and 35073D for the same application.

What This Part Helps Address

• Loose or missing diesel fuel cap
• Fuel tank opening that needs a locking cap
• Incorrect cap style on a diesel filler neck
• Fitment issues on listed Ford Super Duty and E-Series diesel applications
• Need for a vacuum-only vented fuel cap

Installation Notes and Tips

Verify the filler neck style before ordering, especially on 2008 Ford F-250 Super Duty and F-350 Super Duty models noted without a threaded filler neck. Confirm the cap dimensions, cam type, and diesel-only application before installation. Match the vehicle year, make, and model exactly to the listed fitment data for proper application.

Quality Assurance

Gates supplies heavy-duty fuel cap options for industrial and diesel engine applications. Part number 31842D follows that product line approach with a locking design and application-specific fitment details for the listed Ford vehicles.