Gates EMH919 Engine Crankcase Vent Valve - Oil Separator

Crankcase Vent Valve for Volvo Applications

The Gates EMH919 crankcase vent valve is an OE-exact emission control replacement built for Volvo crankcase ventilation service. It is made from plastic and includes an oil separator with four hose connectors for a direct-fit installation on supported Volvo models.

For Volvo S40, V40, C70, S60, V70, S70, 850, and select XC90 applications, the Gates EMH919 helps restore proper crankcase ventilation system operation with the correct hose connection layout and OE-style fitment.

Key Features

• OE-exact crankcase ventilation pressure regulator and oil separator design
• Plastic construction for application-specific fitment
• Four hose connectors for the listed Volvo routing configurations
• Inside diameters include 13 mm, 16 mm, and 21 mm connection sizes
• Direct replacement for emission control service on supported Volvo engines
• Gates EMH919 part number for easy identification

Detailed Description

The Gates EMH919 is part of Gates’ Crankcase Vent Valve line, which focuses on OE-exact crankcase ventilation pressure regulators, PCV valves, and oil separators. This product is engineered to match the original connection layout and restore the emission ventilation system to proper operation and performance levels. It is a practical replacement for Volvo crankcase ventilation service where the original oil separator or vent valve has worn, cracked, or become restricted.

Cross-reference part numbers include Dorman - OE Solutions 926-077 and Genu 1271988 for the same application. The Gates EMH919 is listed for 2000-2004 Volvo S40, 2000-2004 Volvo V40, 2003 Volvo XC90, 1998-2002 Volvo C70, 2001-2002 Volvo S60, 1998-2002 Volvo V70, 1998-2000 Volvo S70, and 1995-1997 Volvo 850.

Common Problems This Part May Address

• Crankcase pressure regulation issues
• Oil separator restriction or failure
• Rough idle related to ventilation system faults
• Oil vapor management problems in the crankcase ventilation system
• Emission system warning conditions tied to PCV service

Installation Notes and Tips

• Verify the vehicle year, model, and chassis notes before ordering, especially for the 2003 Volvo XC90 with chassis no. 772 and before.
• Match the hose connector layout and inside diameters to the original part before installation.
• Inspect connected hoses for brittleness, cracking, or oil saturation during service.
• Confirm all hose connections are fully seated to maintain proper crankcase ventilation routing.

Quality Assurance

Gates manufactures this crankcase vent valve as an OE-exact replacement within its emission control product line. The EMH919 is built to restore the ventilation system to the intended operating condition on supported Volvo applications.