Gates EMH909 Engine Crankcase Vent Valve - PCV Valve

Gates Crankcase Vent Valve EMH909

The Gates EMH909 crankcase vent valve is an OE-exact replacement for vehicles that need precise crankcase ventilation control and a clean, direct fit. Built with a plastic housing and four hose connectors, it helps restore proper emission system operation on select BMW applications.

Key Features

• OE-exact crankcase ventilation pressure regulator / PCV valve replacement
• Plastic construction for application-specific fitment
• Four hose connectors for the listed BMW crankcase ventilation layout
• Inside diameters: 15 mm, 9 mm, 3 mm, and 3 mm
• Direct replacement part number EMH909 for service and repair work

Product Details

Gates EMH909 is part of the Gates Crankcase Vent Valve line, which focuses on exact-fit crankcase ventilation components for restoring emission system performance. This valve is intended for BMW 540i, BMW 740i, BMW 740iL, and BMW 840Ci applications listed below, where accurate hose connection sizing and proper crankcase pressure regulation are important for stable engine operation. This part cross-references Dorman - OE Solutions 911-899 for the same application.

What It Helps Address

• Excess crankcase pressure from a worn or restricted PCV valve
• Oil vapor control issues in the crankcase ventilation system
• Rough idle caused by ventilation flow problems
• Emission system faults related to crankcase ventilation performance
• Vacuum leaks at aging hose connections on the ventilation circuit

Installation Notes and Tips

• Verify hose routing and connector sizes before installation.
• Inspect the connected hoses for cracks, hardening, or oil saturation before replacing the valve.
• Confirm the replacement matches the listed BMW fitment and PCV valve position.
• Clean surrounding components so the new valve seats properly and the hose connections seal correctly.

Quality Assurance

Gates supplies OE-exact emission ventilation components engineered for accurate fit and straightforward installation. The EMH909 is built to restore the crankcase ventilation system to proper operating condition on the listed BMW models.

Compatible Vehicles

• Fits 1997-2003 BMW 540i, PCV Valve
• Fits 1997-2001 BMW 740i, PCV Valve
• Fits 1996-2001 BMW 740iL, PCV Valve
• Fits 1996-1997 BMW 840Ci, PCV Valve