Dorman 42066 PCV Valve Grommet

Reliable Dorman PCV Valve Grommet for Ford, Lincoln, Mercury

The Dorman 42066 PCV valve grommet is designed to provide a secure and durable seal for the positive crankcase ventilation system in select Ford, Lincoln, and Mercury vehicles. Made from quality rubber, this grommet ensures proper fit and function for models including the Mustang, Bronco, and Town Car.

Key Features of the Dorman 42066 PCV Valve Grommet

• Constructed from durable rubber material for long-lasting performance
• Inside diameter measures 0.68 inches for precise fit
• Thickness of 0.38 inches ensures a tight seal
• Outside diameter of 1.39 inches fits securely in the valve cover
• Push-on attachment method allows for straightforward installation
• Compatible with a wide range of Ford, Lincoln, and Mercury models

Detailed Product Description

The Dorman 42066 PCV valve grommet is engineered to maintain the integrity of the emission control system by providing a reliable seal around the PCV valve. Its rubber construction offers resistance to heat and oil exposure, which is critical for maintaining performance in the engine bay. The grommet’s dimensions—0.68 inch inside diameter, 0.38 inch thickness, and 1.39 inch outside diameter—are designed to match OEM specifications, ensuring compatibility with various Ford, Lincoln, and Mercury vehicles such as the F-150, Grand Marquis, and Cougar. The push-on attachment method simplifies installation, reducing the need for additional tools or hardware.

Common Applications and Issues Addressed

• Prevents vacuum leaks in the PCV system
• Eliminates oil leaks around the PCV valve
• Maintains proper crankcase ventilation to reduce engine emissions
• Replaces worn or cracked grommets that cause engine performance issues
• Helps avoid check engine light triggers related to PCV system faults

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Remove the old grommet carefully to avoid damaging the valve cover
• Clean the mounting area to remove oil and debris for a secure fit
• Push the Dorman 42066 grommet firmly into place until fully seated
• Verify the PCV valve fits snugly into the new grommet

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 42066 PCV valve grommet undergoes rigorous quality control to ensure proper fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.