Dorman 46045 PCV Valve Hose

BMW Crankcase Vent Hose Replacement

Dorman 46045 is a plastic PCV valve hose built to replace a worn or leaking original equipment breather hose in the crankcase ventilation system. It is made to resist cracking and brittleness, helping restore proper crankcase ventilation on select BMW applications.

• Plastic construction for OE-style hose replacement
• 4.75 in. length with 1.25 in. inside diameter
• Hose end inside diameter: 1.25 in.
• Replaces a damaged crankcase breather hose in the PCV system
• Direct-fit application for select BMW 325Ci, 330Ci, X3, X5, 325i, 325xi, 330i, 330xi, 525i, 530i, Z4, 323Ci, 323i, 328Ci, 328i, 528i, and Z3 models

Detailed Product Information

This Dorman PCV valve hose, part number 46045, is designed for the crankcase valve to crankcase breather hose connection on select BMW 3 Series, 5 Series, X3, X5, Z3, and Z4 vehicles. It replaces the original hose used in the crankcase ventilation system and is intended for vehicles without the cold weather specification where noted in the fitment data. This part cross-references Genuine 11617504535 for the same application.

Compatible With 2001-2006 BMW 325Ci, 330Ci, 2004-2006 BMW X3, 2001-2006 BMW X5, 2001-2005 BMW 325i, 325xi, 330i, 330xi, 525i, 530i, 2003-2005 BMW Z4, 2000 BMW 323Ci, 323i, 328Ci, 328i, 528i, and Z3. The Dorman 46045 is a practical replacement when the original hose has become brittle, split, or no longer seals properly.

Common Problems This Part Can Address

• Cracked or brittle crankcase breather hose material
• Vacuum leaks in the PCV/crankcase ventilation circuit
• Oil vapor seepage from a deteriorated hose connection
• Rough idle or drivability issues related to ventilation leaks
• Failed emissions-related inspection caused by a leaking hose

Installation Notes and Tips

Verify the vehicle’s engine configuration and cold weather specification before ordering, since fitment exclusions apply on some BMW models. Inspect the mating ports on the crankcase valve and breather connection for damage or buildup before installation. Confirm hose length and inside diameter match the original routing on your BMW 325Ci, 330Ci, X3, X5, or other listed application.

Quality Assurance

Dorman manufactures this replacement hose from quality materials selected to resist cracking and brittleness in normal engine-bay conditions. Part number 46045 is built as an OE-style service replacement for the crankcase ventilation system on the listed BMW applications.