Gates EMH900 Engine Crankcase Vent Valve - Oil Separator

Gates EMH900 Crankcase Vent Valve

The Gates EMH900 is an OE-exact crankcase vent valve assembly for emission control service. Built with a plastic housing and OE-style hose connections, it is made to restore crankcase ventilation pressure regulation and oil separation performance on supported BMW applications.

For BMW 325i, 330i, X5, and related models, this Gates crankcase vent valve is a direct-fit service part for the emission ventilation system. The EMH900 is engineered for accurate fitment and straightforward installation on vehicles listed below.

Key Features

• OE-exact crankcase ventilation pressure regulator and oil separator service part
• Plastic construction for application-specific fit and routing
• Four hose connectors with multiple inside diameter connections: 19 mm, 27 mm, 23 mm, and 5 mm
• Direct replacement for emission control crankcase ventilation service
• Cross-reference example: Genuine 11617501566

Product Details

Gates EMH900 is part of the Gates Crankcase Vent Valve line, which focuses on OE-style crankcase ventilation pressure regulators, PCV valves, and oil separators. This product line is built to match original equipment dimensions so the ventilation system can be serviced without unnecessary modification. The EMH900 is a practical replacement for BMW crankcase ventilation repairs where the oil separator and pressure regulator are serviced together.

Compatible With BMW 325Ci, 330Ci, 330i, X3, X5, 325i, 325xi, 330xi, 525i, 530i, Z4, Z3, 323Ci, 323i, 328Ci, 328i, 528i, and 328is applications listed below. Part number EMH900 is also referenced in interchange listings for related OE and aftermarket cataloging.

What It Helps Address

• Crankcase pressure regulation faults
• Oil separator service needs in the ventilation system
• Rough idle caused by crankcase ventilation issues
• Vacuum leaks related to worn ventilation components
• Emission system performance concerns tied to PCV operation

Installation Notes and Tips

• Verify the vehicle is listed by year, model, and notes before ordering.
• Confirm the application note for vehicles without the cold weather package where specified.
• Check hose routing and connector sizes against the original part before installation.
• Inspect adjacent crankcase ventilation hoses and seals during service.
• For 2006 BMW 330i, confirm the note for September 2005 and older production.

Quality Assurance

Gates manufactures this EMH900 crankcase vent valve as an OE-exact replacement intended to restore emission ventilation system operation and service life on the listed BMW applications.

Vehicle Fitment

• Fits 2001-2006 BMW 325Ci, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2006 BMW 330Ci, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2006 BMW 330i, Oil Separator, Sept. 2005 & Older; W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2004-2006 BMW X3, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2006 BMW X5, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2005 BMW 325i, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2005 BMW 325xi, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2005 BMW 330i, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2005 BMW 330xi, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2005 BMW 525i, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2001-2005 BMW 530i, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2003-2005 BMW Z4, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 1999-2002 BMW Z3, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2000 BMW 323Ci, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2000 BMW 323i, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2000 BMW 328Ci, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 2000 BMW 328i, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 1999-2000 BMW 528i, Oil Separator, W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 1999 BMW 323i, Oil Separator, W/E46 Chassis; W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 1999 BMW 328i, Oil Separator, W/E46 Chassis; W/O Cold Weather Pkg.; Crankcase Vent Valve
• Fits 1999 BMW 328is, Oil Separator, W/E46 Chassis; W/O Cold Weather Pkg.; Crankcase Vent Valve