Dorman 46043 PCV Valve Tubing

Dorman PCV Valve Tubing for GM Applications

Dorman 46043 is a rubber PCV valve tube built to replace a worn or leaking original equipment hose in the crankcase ventilation system. It supports proper crankcase ventilation for smoother engine operation and long-term engine life on select Buick, Chevrolet, Oldsmobile, and Pontiac models.

• Rubber construction helps resist cracking and brittleness
• Push-on attachment method for OE-style routing
• Direct replacement for a leaking or deteriorated PCV hose
• Made for crankcase ventilation service on select GM vehicles
• Fits applications including Chevrolet Impala, Malibu, Monte Carlo, and Pontiac Grand Am

Detailed Product Overview

This PCV valve tubing is built around the listed material and dimensions for a straightforward replacement on the original ventilation hose path. The rubber design helps maintain a secure connection while replacing aged tubing that can harden, split, or leak over time. Dorman 46043 is a practical service part for restoring crankcase ventilation performance on vehicles such as the Buick Century, Chevrolet Impala, and Pontiac Grand Prix.

This part cross-references GM OE 24501125 for the same application.

Common Problems This Part Can Address

• Cracked PCV hose causing vacuum leakage
• Brittle tubing that no longer seals properly
• Oil vapor routing issues from deteriorated ventilation hose
• Rough idle related to crankcase ventilation leaks
• Check engine concerns tied to vacuum or PCV system leakage

Installation Notes and Tips

Inspect the full PCV and crankcase ventilation routing before installation. Confirm the hose ends are clean and the push-on connections seat fully on the original fittings. Verify the replacement matches the vehicle’s hose path and dimensions before service. Fits 2000-2005 Buick Century, N/A; Fits 2002-2005 Buick Rendezvous, N/A; Fits 2000-2005 Chevrolet Impala, N/A; Fits 2000-2005 Chevrolet Monte Carlo, N/A; Fits 2001-2005 Pontiac Aztek, N/A; Fits 2000-2005 Pontiac Grand Am, N/A; Fits 2000-2005 Pontiac Montana, N/A; Fits 2000-2004 Oldsmobile Alero, N/A; Fits 2000-2004 Oldsmobile Silhouette, N/A; Fits 2000-2003 Chevrolet Malibu, N/A; Fits 2000-2003 Pontiac Grand Prix, N/A; Fits 2000-2001 Chevrolet Lumina, N/A.

Quality Assurance

Dorman manufactures replacement parts to match original equipment service needs, and this PCV valve tubing is made from quality materials selected to resist cracking and brittleness in normal engine-bay use.