Gates EMH901 Engine Crankcase Vent Valve

Crankcase Vent Valve for BMW V8 Applications

Gates EMH901 is an OE-exact engine crankcase vent valve kit built to restore crankcase ventilation pressure regulation and emission system performance. It is made with plastic, rubber, and steel components for a precise fit and straightforward installation on select BMW models.

Compatible with BMW 550i, 650Ci, 650i, X5, 750i, 750Li, 545i, 645Ci, 745i, and 745Li applications, this Gates crankcase vent valve is a direct replacement for the original pressure regulator assembly.

Key Features

• OE-exact crankcase ventilation pressure regulator design
• Gates EMH901 replacement for select BMW crankcase ventilation systems
• Constructed from plastic, rubber, and steel for application-specific durability
• Includes cover, diaphragm, and spring in the pressure regulator assembly
• Supports proper crankcase ventilation and emission control operation

Product Details

The Gates Crankcase Vent Valve line focuses on exact-fit emission control components that match original equipment dimensions and function. EMH901 is engineered for BMW engines that use a crankcase ventilation pressure regulator, helping maintain the intended ventilation path and system performance. This part cross-references Dorman OE Solutions 911-117 for the same application.

Use EMH901 when replacing a worn or failed crankcase vent valve on BMW 550i, BMW 650i, or BMW X5 models, as well as other listed 2002-2010 BMW applications. The part number EMH901 is also useful when searching for a direct-fit BMW crankcase vent valve kit by OE-style reference.

Common Issues This Part May Address

• Rough idle caused by crankcase ventilation pressure irregularities
• Oil vapor control problems in the emission ventilation system
• Vacuum-related drivability concerns from a failed pressure regulator
• Check engine light conditions tied to crankcase ventilation faults
• Oil separator or PCV system performance loss on listed BMW engines

Installation Notes and Tips

Verify engine application by year, make, and model before installation. Inspect related crankcase ventilation hoses, seals, and adjoining components for wear, since a new valve performs best when the rest of the ventilation system is in good condition. Confirm the original assembly style matches the EMH901 configuration before replacement.

Quality Assurance

Gates manufactures this crankcase vent valve as an OE-exact replacement intended to restore the emission ventilation system to proper operation and service life. The EMH901 part number is supported by Gates’ application-specific design approach for BMW crankcase ventilation service.