Dorman 42323 PCV Valve Grommet - Front

Reliable PCV Valve Grommet for Select GM Vehicles

The Dorman 42323 PCV valve grommet is designed to provide a secure and durable seal for the positive crankcase ventilation system in various Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. Made from quality rubber, this grommet ensures proper fitment and long-lasting performance in emission control applications.

• Constructed from durable rubber material for flexibility and sealing
• Inside diameter of 0.71 inches for precise PCV valve fit
• Thickness of 0.63 inches to maintain a tight seal
• Outside diameter of 1.40 inches for secure attachment
• Push-on attachment method for easy installation
• Compatible with multiple GM makes and models including Chevrolet Blazer, GMC Sierra, Pontiac Firebird, and more

Detailed Product Description and Specifications

The Dorman 42323 PCV valve grommet is engineered to replace worn or damaged grommets in the emission control system, helping to maintain proper crankcase ventilation. Its rubber construction provides resistance to heat and oil exposure, which are common in engine compartments. The grommet’s dimensions—0.71 inch inside diameter, 0.63 inch thickness, and 1.40 inch outside diameter—are designed to fit tightly around the PCV valve and mounting surface, preventing vacuum leaks and ensuring system integrity.

This part is compatible with a wide range of GM vehicles, including Buick LeMans, Chevrolet C10 Suburban, GMC K1500, Oldsmobile Cutlass, and Pontiac Grand Prix, among others. The push-on attachment method simplifies installation, allowing for a secure fit without additional hardware.

Common Applications and Issues Addressed

• Prevents vacuum leaks in the PCV system
• Eliminates oil and air leaks around the PCV valve
• Restores proper crankcase ventilation function
• Helps reduce engine emissions and improve performance
• Replaces brittle or cracked original grommets

Installation Notes and Tips

• Ensure the engine is cool before installation to avoid injury
• Remove the old grommet carefully to prevent damage to the PCV valve or mounting surface
• Clean the mounting area to remove oil and debris for a better seal
• Push the Dorman 42323 grommet firmly onto the PCV valve until fully seated
• Verify the grommet is securely attached and there are no gaps or leaks

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 42323 PCV valve grommet undergoes quality checks to ensure durability and reliable performance in emission control systems. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to provide confidence in the product’s longevity.