Dorman 42314 PCV Valve Grommet

Dorman 42314 PCV Valve Grommet

Dorman 42314 is a rubber PCV valve grommet made to match the fit and function of the original part on specified vehicles. It is built for a push-on attachment and the angled valve cover connection used across a wide range of Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac applications.

For owners searching for a PCV valve grommet for angled connection to valve cover, this replacement is sized for direct service on classic GM engines. The Dorman 42314 PCV valve grommet is a practical choice when restoring a leaking, hardened, or cracked valve cover grommet on vehicles such as the Oldsmobile Cutlass, Buick Regal, and Pontiac Firebird.

Key Features

• Rubber construction for flexible sealing performance
• Push-on attachment method for straightforward installation
• Inside diameter: 0.48 in.
• Outside diameter: 1.07 in.
• Thickness: 1.248 in.
• Designed to match original fit and function on listed applications
• Used for angled PCV valve connection to the valve cover

Detailed Description

This PCV valve grommet is engineered as an OE-style replacement for emission control service on specified GM vehicles. Its rubber material helps maintain a secure seal at the valve cover while supporting the angled PCV valve connection used in many Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac applications. Dorman 42314 is a direct-fit service part for vehicles including the Oldsmobile Cutlass, Oldsmobile Delta 88, Buick LeSabre, and Pontiac Grand Prix.

This part cross-references Standard Ignition GV18 for the same application.

What It Helps Fix

• Oil vapor leaks around the PCV valve opening
• Cracked or hardened valve cover grommets
• Loose PCV valve seating at the valve cover
• Vacuum leaks caused by deteriorated grommet material
• Emission system service issues tied to a worn PCV seal

Installation Notes and Tips

Install the grommet by pushing it into the valve cover opening, then seat the PCV valve into the grommet. Confirm the valve cover opening is clean and free of old rubber residue before installation. Verify the angled connection matches the original layout on the vehicle before final assembly. Fits 1968-1990 Buick LeSabre, N/A; Fits 1986-1990 Chevrolet Caprice, N/A; Fits 1968-1988 Oldsmobile Cutlass Supreme, N/A; Fits 1977-1979 Pontiac Firebird, N/A.

Quality Assurance

Dorman designs this replacement to match original fit and function and to deliver durable, reliable performance in service.