Dorman 42055 PCV Valve Grommet

Overview of Dorman PCV Valve Grommet 42055

The Dorman PCV Valve Grommet 42055 is a durable rubber component designed for emission control systems. It provides a secure, push-on attachment to maintain proper sealing and function in various GM vehicles including Chevrolet Silverado and Cadillac Escalade models.

• Constructed from resilient rubber material for durability
• Inside diameter measures 0.71 inches for precise fit
• Thickness of 0.46 inches ensures reliable sealing
• Outside diameter of 1.28 inches for compatibility with OEM specifications
• Push-on attachment method for straightforward installation

Detailed Product Description

This PCV valve grommet by Dorman is engineered to meet the exacting standards required for emission control hardware. The rubber construction offers flexibility and resistance to heat and chemical exposure commonly found in engine compartments. With an inside diameter of 0.71 inches and an outside diameter of 1.28 inches, this grommet fits securely around the PCV valve stem, preventing vacuum leaks and ensuring proper ventilation of crankcase gases. The 0.46-inch thickness provides a tight seal that helps maintain engine performance and emission compliance. Compatible with a wide range of GM vehicles such as the Chevrolet Avalanche 1500, Cadillac DeVille, and GMC Sierra 1500 HD, this part supports the integrity of the PCV system.

Common Applications and Issues Addressed

• Prevents vacuum leaks in the PCV valve assembly
• Eliminates oil leaks around the PCV valve connection
• Maintains proper crankcase ventilation to reduce emissions
• Replaces worn or cracked grommets causing engine performance issues
• Supports emission control compliance in Buick, Pontiac, and Oldsmobile models

Installation Notes and Tips

Installation of the Dorman PCV Valve Grommet 42055 is straightforward due to its push-on attachment method. Before installation, ensure the PCV valve stem and surrounding area are clean and free of debris. Gently push the grommet onto the valve stem until it seats firmly. Verify the grommet is properly aligned to avoid leaks. This part is compatible with various GM models including the Chevrolet Camaro and GMC Yukon XL 1500, so confirm fitment with your specific vehicle model and year.

Quality Assurance and Warranty

Dorman manufactures this PCV valve grommet to meet or exceed OEM specifications, ensuring reliable performance in emission control systems. The rubber material is selected for durability and resistance to engine environment conditions. While specific warranty details may vary, Dorman typically offers coverage against defects in material and workmanship to provide confidence in product quality.