Gates 31836Y Fuel Tank Cap

Gates Flex Fuel Locking Fuel Cap

The Gates Flex Fuel Regular Locking Fuel Cap is a yellow, lockable fuel tank cap for vehicles equipped for gasoline or E85 use. It features a quick-on cam design with pressure-vacuum venting and an E85 designation on the cover to help identify flex-fuel applications.

Part number 31836Y is built for select Chrysler, Dodge, Jeep, Ram, Nissan, and Volkswagen models, including Ram 1500, Dodge Grand Caravan, and Jeep Cherokee applications. If you need a replacement fuel cap for a flex-fuel vehicle, 31836Y provides the correct locking style and fitment-specific design.

Key Features

• Brand: Gates
• Part number: 31836Y
• Fuel tank cap for flex-fuel applications
• Yellow plastic cover with E85 designation
• Lockable design for added fuel-filler security
• Quick-On cam type
• Pressure-vacuum venting
• Shell diameter: 2.91 in.
• Thread diameter: 1.78 in.
• Depth: 2.61 in.

Product Details

Gates Flex Fuel Regular Locking Fuel Caps are made for drivers who need a clearly marked cap for gasoline or E85 ethanol use. The yellow cover and E85 labeling make the fuel type easy to identify at the filler neck, while the locking feature adds a secure closure for the fuel tank. This Gates fuel tank cap uses a quick-on cam style and pressure-vacuum venting to match the requirements of listed flex-fuel vehicles.

This part cross-references 10508Y and 11508Y for the same application. It is listed for a wide range of vehicles, including 2011-2018 Ram 1500, 2015-2019 Ram ProMaster 1500, 2015-2019 Dodge Journey, and 2017-2018 Jeep Cherokee. It also covers select Dodge Grand Caravan, Chrysler Town & Country, and Dodge Charger models, along with additional Chrysler, Dodge, Jeep, Nissan, Ram, and Volkswagen applications.

Common Reasons to Replace

• Broken or worn fuel cap locking mechanism
• Fuel cap warning light caused by a poor seal
• Damaged cap cover or venting components
• Missing or incorrect flex-fuel fuel cap
• Need for a replacement cap on a listed Ram 1500, Dodge Grand Caravan, or Jeep Cherokee

Installation Notes and Tips

Verify the vehicle year, make, model, and fuel system before ordering. This cap is listed for specific flex-fuel applications, including 2020-2023 Ram 1500 Classic, 2015-2020 Dodge Grand Caravan, 2011-2018 Ram 1500, 2015-2019 Dodge Journey, and 2017-2018 Jeep Cherokee. Confirm the cap style, thread diameter, and venting type against the original part before installation.

For best results, inspect the filler neck and sealing surface for dirt, damage, or corrosion before installing the new cap. Make sure the cap locks and seats fully after installation.

Quality Assurance

Gates is a recognized name in automotive air and fuel delivery components, and this fuel cap is built to match the listed flex-fuel applications with the specified locking and vented design.