Dorman 42306 Engine Oil Filler Tube Grommet

Engine Oil Filler Tube Grommet for OE Fit

Dorman 42306 is an engine oil filler tube grommet built to match the original fit and function on specified vehicles. It is engineered for durable sealing performance in applications where the oil filler tube passes through the engine or valve cover area.

Compatible with Chevrolet Express, GMC Savana, Chevrolet Astro, GMC Safari, and other GM truck and van applications, this Dorman 42306 replacement helps restore a secure, factory-style connection at the oil filler tube.

Key Features

• OE-style engine oil filler tube grommet for direct replacement use
• Designed to match the fit and function of the original grommet
• Built for durable, reliable performance in engine service areas
• Supports a proper seal at the oil filler tube opening
• Cross-references 423063 and 10108402 for the same application

Detailed Description

This engine oil filler tube grommet is a practical replacement for worn, hardened, or leaking original parts. Dorman 42306 is used on a wide range of GM vehicles, including 1985-2002 Chevrolet and GMC vans, trucks, and performance models such as the Chevrolet Camaro and Pontiac Firebird. It also fits Chevrolet P30, GMC P3500, Chevrolet G30, GMC G3500, Chevrolet G10/G20, GMC G1500/G2500, Chevrolet Astro, and GMC Safari applications. The part number 42306 is a direct-fit service solution for restoring the oil filler tube interface without changing the surrounding engine hardware.

What It Helps Fix

• Oil seepage around the filler tube opening
• Loose or unstable oil filler tube fitment
• Cracked, hardened, or deteriorated original grommets
• Improper sealing at the engine oil fill point
• Maintenance issues caused by aging engine bay rubber components

Installation Notes and Tips

Inspect the oil filler tube and surrounding sealing surfaces before installation. Clean away old residue so the new grommet seats evenly, and verify the tube is fully aligned before final assembly. This part is used on vehicles such as the Chevrolet Express 1500, Chevrolet Express 2500, Chevrolet Express 3500, and GMC Savana 1500/2500/3500, so confirm the application by year and model before ordering.

Quality Assurance

Dorman designs this replacement to match original fit and function and to provide dependable service in engine applications. Part number 42306 is engineered for durability and reliable performance.