Gates 31279 Engine Oil Filler Cap

Engine Oil Filler Cap for Toyota and Lexus

Restore a secure seal at the valve cover with this Gates oil filler cap, part number 31279. It is an OE Exact, push-fit replacement built from black plastic with an included gasket or seal for a direct-style service fit on select Toyota and Lexus engines.

Key Features

• Gates Oil Filler Cap, part number 31279
• OE Exact replacement for factory-style fit and function
• Push-fit cam type for straightforward installation
• Black plastic construction for everyday engine-bay use
• Gasket or seal included
• Shell diameter: 2.44 in; neck diameter: 1.19 in; neck depth: 1.44 in; height: 1.27 in

Product Details

The Gates Oil Filler Cap line focuses on durable service parts made from impact-resistant plastic or heavy-gauge metal, depending on application. This Gates 31279 oil filler cap uses black plastic construction and an OE Exact comparison rating to match the original cap’s basic fit and sealing profile. It is a practical replacement for worn, cracked, or missing caps on applications such as Toyota Camry, Toyota Sienna, Toyota Highlander, Lexus RX330, and Lexus ES330. This part cross-references BBB Industries 11121 for the same application.

What It Helps Fix

• Oil cap that no longer seals properly
• Cracked or brittle plastic cap housing
• Missing or loose oil filler cap
• Oil vapor escape around the filler opening
• Contamination entering the oil fill neck

Installation Notes

Verify the neck diameter, shell diameter, and push-fit style against the original cap before installation. Clean the filler neck sealing surface before fitting the new cap, and confirm the cap seats fully and locks in place. Use the vehicle’s service information to confirm application details for your specific engine.

Quality Assurance

Gates builds this oil filler cap with impact-resistant plastic construction and an included seal to support long service life in normal engine-bay conditions. OE Exact comparison rating indicates a factory-style replacement approach for the listed Toyota and Lexus applications.