Dorman 42056 PCV Valve Grommet

Reliable PCV Valve Grommet for GM and Jeep Vehicles

The Dorman 42056 PCV Valve Grommet is designed to provide a secure and durable seal for the positive crankcase ventilation system in various Buick, Cadillac, Chevrolet, GMC, Jeep, Oldsmobile, and Pontiac models. Made from quality rubber, this grommet ensures proper fit and function to maintain emission control system integrity.

• Constructed from durable rubber material for long-lasting performance
• Push-on attachment method for easy installation
• Inside diameter of 0.41 inches and outside diameter of 1.29 inches for precise fit
• Thickness of 0.5 inches to provide a secure seal
• Compatible with a wide range of GM and Jeep models including Chevrolet Silverado, GMC Sierra, Buick Century, and Jeep Wagoneer

Detailed Product Description

The Dorman 42056 PCV Valve Grommet is engineered to replace worn or damaged grommets in the emission control system, specifically designed to fit a variety of General Motors and Jeep vehicles. Its rubber construction offers flexibility and resistance to heat and oil exposure, which are common in engine compartments. The push-on design simplifies installation, allowing for a tight and reliable seal around the PCV valve, preventing vacuum leaks and ensuring proper ventilation of crankcase gases.

Compatible Vehicles and Applications

This PCV valve grommet is compatible with numerous models such as the Chevrolet Blazer, GMC Sierra, Buick LeSabre, Cadillac DeVille, Pontiac Grand Prix, and Jeep Wagoneer, among others. It is suitable for use in emission control systems where a 0.41-inch inside diameter and 1.29-inch outside diameter grommet is required.

• Prevents vacuum leaks in the PCV system
• Helps maintain proper engine ventilation
• Reduces harmful emissions by sealing the PCV valve
• Replaces cracked or hardened original grommets
• Supports engine performance by ensuring correct crankcase pressure

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid injury. Remove the old grommet carefully to prevent damage to the PCV valve or surrounding components. The push-on design of the Dorman 42056 allows for straightforward installation; simply press the grommet firmly onto the valve or fitting until fully seated. Inspect the PCV valve and related hoses for wear or damage during replacement to maintain system integrity.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable fit and function. The 42056 PCV Valve Grommet undergoes quality control testing to ensure durability and performance under typical operating conditions. This part is backed by Dorman's limited warranty, covering defects in material and workmanship for a specified period.