Gates 31839 Fuel Tank Cap

OE Equivalent Fuel Cap for Toyota and Lexus

Gates 31839 is an OE Equivalent Fuel Cap built for direct replacement on select Toyota, Lexus, Scion, and Pontiac applications. It is made with rugged, heavy-duty construction and is engineered to meet or exceed OEM specifications for a secure fuel tank seal.

This Gates OE Equivalent Fuel Cap 31839 is designed for vehicles using a Quick-On cam style filler neck and is compatible with shallow and deep cam filler necks. It supports emission control venting requirements and is listed with OE performance comparison rating for factory-style fit and function.

Key Features

• OE Equivalent Fuel Cap for factory-style replacement
• Gates 31839 part number for easy identification
• Quick-On cam type for select filler neck designs
• Emission control venting
• Rugged, heavy-duty construction
• Fits shallow and deep cam filler necks
• Meets or exceeds OEM specifications

Product Details

The Gates OE Equivalent Fuel Cap line is built for drivers who need a dependable replacement fuel tank cap without changing the original system design. Part number 31839 is sized with a 1.56-inch thread diameter, 2.23-inch depth, and 2.75-inch shell diameter. It is non-lockable and uses a Quick-On cam style for straightforward OE-style service on supported applications.

Compatible With 2013-2014 Lexus GS350, 2005-2010 Scion tC, 2003-2009 Lexus GX470, 2003-2009 Toyota 4Runner, 2004-2009 Toyota Prius, 2005-2008 Toyota Hilux, 2005-2008 Toyota Tacoma, 2006-2007 Lexus GS430, 2005-2007 Toyota Sequoia, 2004-2006 Lexus ES330, 2006 Lexus GS300, 2004-2006 Lexus RX330, 2005-2006 Toyota Avalon, 2003-2006 Toyota Camry, 2005-2006 Toyota Corolla w/o threaded filler neck, 2004-2006 Toyota Highlander, 2004-2006 Toyota Sienna, 2004-2006 Toyota Solara, 2003-2006 Toyota Tundra, 2005 Pontiac Vibe, 2005 Toyota Matrix, 2002-2003 Lexus ES300, and 2002 Toyota Camry w/o threaded filler neck.

This part cross-references Stant 10839 and Dixie Electric Ltd 11839 for the same application.

Common Uses

• Replacing a damaged or missing fuel tank cap
• Restoring proper fuel system sealing on Toyota Camry, Tacoma, and 4Runner applications
• Addressing evaporative emissions fault codes related to cap sealing
• Correcting fuel odor caused by a worn cap seal
• Replacing a cap that no longer locks or seals correctly on OE-style filler necks

Installation Notes and Tips

Verify the filler neck style before ordering, especially on 2002 Toyota Camry and 2005-2006 Toyota Corolla applications that are listed without a threaded filler neck. Confirm the cap type matches the vehicle’s cam-style neck and compare the existing cap dimensions when possible. After installation, tighten until the cap seats fully and check that the fuel door closes without interference.

Quality Assurance

Gates OE Equivalent Fuel Caps are built to meet or exceed OEM specifications and are intended to deliver OE-style performance on supported Toyota and Lexus applications. Gates 31839 is engineered for emission control sealing and consistent replacement fit.