Dorman 46059 PCV Valve Tubing

PCV Tube for Crankcase Ventilation Repair

Dorman 46059 is a rubber PCV valve tubing replacement for crankcase ventilation service on select Chevrolet, GMC, and Hummer applications. It replaces a worn or leaking original hose to help restore proper ventilation and steady engine operation.

• Rubber construction for flexibility and resistance to cracking and brittleness
• Slip-on attachment method for OE-style hose routing
• Inside diameter: 0.496 in.; outside diameter: 0.791 in.
• Direct replacement PCV tube for emission control and crankcase ventilation repair
• Cross-reference: Gates EMH182 for the same application

Detailed Product Information

This Dorman PCV valve tubing is built from rubber to match the needs of crankcase ventilation routing while resisting the hardening and splitting that can affect aged hoses. Part number 46059 is intended to replace the original PCV tube on vehicles such as the Chevrolet Colorado, GMC Canyon, Hummer H3, and Hummer H3T, helping maintain a sealed path for crankcase vapors. The slip-on design supports OE-style installation and the tube dimensions are sized for the listed application.

Fits 2004-2012 Chevrolet Colorado, N/A. Fits 2004-2012 GMC Canyon, N/A. Fits 2006-2010 Hummer H3, N/A. Fits 2009-2010 Hummer H3T, N/A.

What This Part Helps Address

• Cracked or brittle PCV hose material
• Oil vapor leaks from a deteriorated ventilation tube
• Rough idle caused by unmetered crankcase air leaks
• Check engine concerns related to crankcase ventilation flow
• Broken or loose original equipment hose connections

Installation Notes and Tips

Inspect the mating ports and surrounding ventilation components before installation. Confirm the hose routing matches the original layout and verify the slip-on ends seat fully on the connections. This part number 46059 should be matched to the vehicle’s original tube shape and dimensions for proper fit.

Quality Assurance

Dorman manufactures this replacement PCV tube using quality materials selected to resist cracking and brittleness in service. It is a direct-fit replacement for the listed applications and cross-references Gates EMH182 and OE number 15123628 for the same application.