URO 11617501566 Engine Crankcase Vent Valve

Engine Crankcase Vent Valve for BMW

This URO engine crankcase vent valve restores crankcase ventilation performance on select BMW applications. It is built to OE dimensions for straightforward installation and original appearance, with materials selected to handle engine heat and vaporized oil.

Part number 11617501566 is used on a wide range of BMW 323Ci, 325i, 330i, 525i, X5, and Z3 applications, making it a direct-fit service part for common crankcase ventilation repairs.

Key Features

• Direct replacement for plugged or sticking crankcase vent valves
• Helps restore proper air/fuel ratio and engine operation by routing unburned fuel vapors from the crankcase into the intake
• Reduces oil buildup in the intake tract
• Manufactured to OE dimensions for fit and factory-style appearance
• Heat- and oil-resistant valve materials for demanding engine conditions
• URO part number 11617501566

Detailed Description

When the crankcase vent valve fails, crankcase pressure and vapor control can be affected, which can lead to drivability concerns and intake contamination. This URO replacement is engineered for BMW emission control systems and serves as a direct OE-style service part for vehicles including the BMW 325Ci, 330Ci, X3, 530i, and Z4. It also cross-references Genuine 11617501566 for the same application.

By evacuating crankcase vapors into the intake stream, this valve supports normal ventilation flow and helps maintain cleaner intake components. The URO 11617501566 is a practical replacement when the original valve is restricted, sticking, or no longer regulating vapors correctly.

What It Helps Address

• Rough idle related to crankcase ventilation restriction
• Excess oil residue in the intake system
• Sticking or plugged crankcase vent valve operation
• Improper crankcase vapor evacuation
• Air/fuel ratio issues caused by ventilation faults

Installation Notes and Tips

Verify the part number and vehicle application before installation. This valve is manufactured to OE dimensions for a direct replacement fit on listed BMW models, including 1998-2006 BMW 528i, 1999-2005 BMW 323i/328i/525i/530i/X5, and 2003-2005 BMW Z4 applications. Inspect related crankcase ventilation hoses and intake components during service to confirm the system is clean and free of restrictions.

Quality Assurance

URO manufactures this valve to OE dimensions and uses materials designed to resist engine heat and vaporized oil. Part number 11617501566 includes a 24-month unlimited mileage warranty.