Gates EMH959 Engine Crankcase Vent Valve - PCV Valve

Gates EMH959 Crankcase Vent Valve Overview

The Gates EMH959 crankcase vent valve is an OE-exact replacement for the engine crankcase ventilation system. Built from plastic with a 13 mm (0.5 in.) inside diameter and one hose connector, it is made for direct fitment and straightforward installation on supported Dodge, Jeep, and Mitsubishi applications.

Gates’ Crankcase Vent Valve line focuses on restoring proper crankcase ventilation performance with exact-fit components that match original equipment dimensions. The EMH959 is a practical choice when servicing the PCV system on vehicles such as the Dodge Dakota, Dodge Durango, and Jeep Grand Cherokee.

Key Features

• OE-exact crankcase vent valve for emission control service
• Plastic construction for factory-style fit and routing
• 13 mm inside diameter for the specified hose connection
• Single hose connector design
• Includes PCV valve component
• Direct replacement for Gates EMH959 applications

Detailed Product Description

This Gates EMH959 crankcase vent valve is part of the brand’s emission control and crankcase ventilation lineup, engineered to match original equipment dimensions for a clean installation and proper system operation. It is listed for 2002-2006 Dodge Dakota, 2002-2006 Dodge Durango, 2002-2006 Dodge Ram 1500, 2002-2005 Dodge Ram 2500, 2006 Jeep Commander, 2002-2006 Jeep Grand Cherokee, 2002-2006 Jeep Liberty, and 2006 Mitsubishi Raider. This part cross-references Mopar 53032800AA and Standard Ignition V373 for the same application.

Common Issues This Part May Address

• Crankcase ventilation service on a worn or restricted PCV valve
• Rough idle related to PCV system airflow problems
• Oil vapor control concerns in the crankcase ventilation circuit
• Emission system faults tied to improper crankcase pressure regulation
• Vacuum leak symptoms caused by a deteriorated vent valve

Installation Notes and Tips

Verify hose size and connector style before installation. The EMH959 uses a 13 mm (0.5 in.) inside diameter and one hose connector, so matching the existing routing helps ensure proper fit. Confirm vehicle year, make, model, and PCV valve position against the fitment list before ordering. For Dodge Dakota, Dodge Durango, Dodge Ram 1500, and Jeep Grand Cherokee applications, inspect the surrounding hoses and grommets during service to avoid reusing worn components.

Quality Assurance

Gates designs this crankcase vent valve as an OE-exact replacement to help restore the emission ventilation system to proper operation and performance levels. The brand’s crankcase ventilation product line is built for accurate fitment and dependable service life in supported applications.