Dorman 46046 PCV Valve Hose

Dorman 46046 PCV Valve Hose for BMW

Dorman 46046 is a replacement PCV valve hose for crankcase ventilation service on select BMW models. It is built from plastic material to help resist cracking and brittleness, making it a direct solution for a worn or leaking original hose.

Compatible With 1996-2000 BMW 323i, 323is, 328i, 328is, M3, 528i, and Z3 crankcase vent pipe applications, this hose supports proper crankcase ventilation and steady engine operation. The Dorman 46046 PCV valve hose is sized at 13.25 inches long with a 0.64-inch inside diameter at both ends.

Key Features

• Replacement PCV valve hose for crankcase ventilation repair
• Plastic construction helps resist cracking and brittleness
• Length: 13.25 in.
• Inside diameter: 0.64 in. at both hose ends
• Direct replacement for worn or leaking original equipment hose
• Cross-references Genuine 11151703775 and TechSmart Q27003

Detailed Description

Crankcase ventilation depends on a sealed, properly routed hose to move vapors as intended and maintain smooth engine performance. Dorman 46046 is engineered as a replacement PCV hose for BMW crankcase vent pipe service, using a durable plastic construction that addresses common failure points such as splitting, hardening, and leakage. For BMW 528i, BMW Z3, and BMW 323i/328i/M3 applications, this hose restores the vent path with the correct length and end diameter for the listed fitments.

This part number, 46046, is a practical OE-style replacement when the original hose shows age-related wear or vacuum leakage. It is also a useful cross-reference when searching for Genuine 11151703775 or TechSmart Q27003 for the same application.

What It Helps Fix

• Cracked or brittle crankcase vent hose
• Oil vapor leaks around the PCV hose connection
• Rough idle caused by ventilation leaks
• Vacuum-related drivability issues from a damaged hose
• Loss of proper crankcase ventilation routing

Installation Notes and Tips

Inspect the surrounding crankcase ventilation components before installation and replace any damaged seals or adjoining hoses as needed. Confirm the hose routing matches the original BMW layout and verify the connections are fully seated to prevent leaks. This part is listed for crankcase vent pipe applications on the specified BMW models, including BMW 528i, BMW Z3, and BMW M3 fitments.

Quality Assurance

Dorman replacement parts are built to address common OE failure points with application-specific fitment and material selection. Part number 46046 is intended as a direct replacement hose for the listed BMW crankcase ventilation applications.