Gates 31099 Engine Oil Filler Cap

Overview

This Gates engine oil filler cap is an OE exact replacement for a wide range of Chevrolet and GMC applications. Part number 31099 is built with a plastic and rubber construction, a twist-lock cam design, and an included gasket or seal for a secure closure.

Compatible With Chevrolet Astro, GMC Safari, Chevrolet Express vans, Chevrolet Silverado HD, GMC Sierra HD, and other listed applications. The Gates Oil Filler Cap line focuses on durable replacement caps made from impact-resistant materials for long service life.

Key Features

• OE exact fitment for direct replacement service
• Twist-lock cam type for secure engagement
• Plastic and rubber construction in black finish
• Gasket or seal included for sealing at the filler neck
• Designed for listed Chevrolet and GMC engine oil filler cap applications

Detailed Description

Gates part number 31099 is an engine oil filler cap engineered to match the OE specification for the listed vehicles. Its 2.34-inch shell diameter, 1.29-inch neck diameter, and 1.44-inch neck depth support proper fit at the filler opening, while the black plastic and rubber construction provides a practical replacement solution for routine maintenance. This part cross-references FEL-PRO 36057 and Wix 46558 for the same application.

Fits 1996-2005 Chevrolet Astro, N/A; Fits 1996-2005 GMC Safari, N/A; Fits 2002 Chevrolet Avalanche 2500, N/A; Fits 1996-2002 Chevrolet C3500HD, N/A; Fits 1999-2002 Chevrolet C6500 Kodiak, N/A; Fits 1999-2002 Chevrolet C7500 Kodiak, N/A; Fits 1996-2002 Chevrolet Express 1500, N/A; Fits 1996-2002 Chevrolet Express 2500, N/A; Fits 1996-2002 Chevrolet Express 3500, N/A; Fits 2002 Chevrolet G30, N/A; Fits 1996 Chevrolet G30, N/A; Fits 2001-2002 Chevrolet Silverado 2500 HD, N/A; Fits 2001-2002 Chevrolet Silverado 3500, N/A; Fits 2001-2002 Chevrolet Suburban 2500, N/A; Fits 1996-2002 GMC C3500HD, N/A; Fits 1999-2002 GMC C6500 Topkick, N/A; Fits 1999-2002 GMC C7500 Topkick, N/A; Fits 1996-2002 GMC Savana 1500, N/A; Fits 1996-2002 GMC Savana 2500, N/A; Fits 1996-2002 GMC Savana 3500, N/A; Fits 2001-2002 GMC Sierra 2500 HD, N/A; Fits 2001-2002 GMC Sierra 3500, N/A; Fits 2001-2002 GMC Yukon XL 2500, N/A; Fits 1996-2000 Chevrolet C2500, N/A; Fits 1996-2000 Chevrolet C3500, N/A; Fits 1996-2000 Chevrolet K2500, N/A; Fits 1996-2000 Chevrolet K3500, N/A; Fits 1996-2000 GMC C2500, N/A; Fits 1996-2000 GMC C3500, N/A; Fits 1996-2000 GMC K2500, N/A; Fits 1996-2000 GMC K3500, N/A; Fits 1996-1999 Chevrolet C2500 Suburban, N/A; Fits 1997-1999 Chevrolet Cargo Van, N/A; Fits 1996-1999 Chevrolet K2500 Suburban, N/A; Fits 1996-1999 Chevrolet P30, N/A; Fits 1996-1999 GMC C2500 Suburban, N/A; Fits 1996-1999 GMC K2500 Suburban, N/A; Fits 1996-1999 GMC P3500, N/A

Installation Notes

Verify the filler neck diameter and cap style before installation. Clean the sealing surface, inspect the gasket or seal, and confirm the twist-lock cam engages fully before returning the vehicle to service. Use the listed fitment to match the correct Chevrolet or GMC application for part number 31099.

Quality Assurance

Gates oil caps are built with impact-resistant plastic or heavy-gauge metal construction to support long service life. Part number 31099 is an OE exact replacement for the listed applications.