Gates 31299 Engine Oil Filler Cap

Gates 31299 Oil Filler Cap

The Gates 31299 oil filler cap is a direct-fit engine oil cap built with impact-resistant plastic or heavy-gauge metal construction for long service life. It is a cam twist style cap with the dimensions needed for the listed Chrysler, Dodge, Fiat, Jeep, Mitsubishi, and Ram applications.

Key Features

• Oil filler cap for engine hardware applications
• Cam twist design for secure engagement
• Impact-resistant plastic or heavy-gauge metal construction
• Neck diameter: 1.1875 in.
• Neck depth: 1.1875 in.
• Shell diameter: 1.75 in.
• Gates part number 31299

Product Details

Gates Oil Filler Caps are built for dependable sealing at the engine oil fill opening. This Gates 31299 cap is specified as a cam twist oil filler cap with a 1.1875-inch neck diameter and 1.1875-inch neck depth, plus a 1.75-inch shell diameter. Those dimensions matter for proper fit on vehicles such as the Dodge Durango, Jeep Grand Cherokee, Ram 1500, and Chrysler 300, where the oil cap must seat correctly to help maintain a secure closure.

This part cross-references Dorman - HELP 80999 for the same application. If you are replacing a worn, cracked, or missing oil cap, Gates 31299 provides a straightforward OE-style service part for a wide range of 2007-2026 Chrysler, Dodge, Jeep, Ram, Fiat, and Mitsubishi models.

What It Helps Fix

• Broken or cracked oil filler cap housing
• Loose cap fit at the engine oil fill neck
• Missing or damaged oil cap after service
• Oil fill opening that no longer seals properly
• Incorrect replacement cap size or twist-lock style

Installation Notes

• Verify the neck diameter, neck depth, and shell diameter before installation.
• Match the cam twist style to the original cap design.
• Inspect the oil fill neck for damage, debris, or hardened residue before installing the new cap.
• Confirm vehicle-specific fitment for your exact year, make, and model.

Quality Assurance

Gates builds this oil filler cap with durable materials selected for long service life. Part number 31299 is listed for broad OE-style replacement coverage across multiple Chrysler, Dodge, Jeep, Ram, Fiat, and Mitsubishi applications.