Dorman 46001 PCV Valve Tubing

Dorman 46001 PCV Valve Tubing

Dorman 46001 PCV valve tubing restores a secure crankcase ventilation connection when the original hose is cracked, brittle, or leaking. Built from plastic and rubber with a push-on attachment method, it supports proper crankcase ventilation for smoother engine operation and longer service life.

Key Features

• Direct replacement PCV hose for crankcase ventilation service
• Plastic and rubber construction helps resist cracking and brittleness
• Push-on attachment for a straightforward OE-style connection
• Inside diameters: 0.331 in and 0.399 in
• Outside diameters: .562 in and .616 in
• Fits a wide range of Chevrolet and GMC trucks, vans, and SUVs

Detailed Description

This Dorman PCV valve tubing is built to replace worn or leaking original equipment hose routing in the crankcase ventilation system. By maintaining a sealed path for vapors, it helps preserve idle quality, reduce vacuum leaks, and keep the engine breathing as intended. It is a practical replacement for Chevrolet C1500, K1500, Blazer, and GMC Jimmy applications, along with many other GM truck and van platforms from 1987-1995. This part number 46001 is also a direct cross-reference for 10129550 and 8101295500 for the same application.

What It Helps Fix

• Cracked PCV hose causing vacuum leaks
• Brittle tubing that no longer seals properly
• Rough idle related to crankcase ventilation leaks
• Oil vapor routing issues from damaged hose material
• Failed emissions-related hose inspection on GM trucks and vans

Installation Notes and Tips

Install the tubing by matching the inside diameter and push-on connection points to the original routing. Inspect nearby PCV valves, grommets, and adjoining hoses before installation so the new tubing seals against clean, undamaged fittings. Confirm fitment against the vehicle’s original hose layout before final assembly.

Quality Assurance

Dorman manufactures replacement components for OE-style service applications, and this tubing is made from materials selected to resist cracking and brittleness in normal engine-bay use. Part number 46001 is built as a replacement for worn factory PCV hose routing on supported Chevrolet and GMC applications.