Gates EMH994 Engine Crankcase Vent Valve - PCV Valve

Gates EMH994 Crankcase Vent Valve

The Gates EMH994 crankcase vent valve is an OE-exact replacement for vehicles that need precise crankcase ventilation pressure control. Built with a steel body and a 0.19 in. (5 mm) inside diameter hose connection, it supports a direct-fit repair for the PCV system on select Toyota, Lexus, and Scion applications.

For drivers searching for a Toyota Camry PCV valve replacement, a Lexus NX300h crankcase vent valve, or a Scion tC emission control part, this Gates EMH994 valve is built to restore proper ventilation system operation with an exact-fit design.

Key Features

• OE-exact crankcase ventilation pressure regulator design
• Steel construction for durable service in emission control applications
• 0.19 in. / 5 mm inside diameter hose connection
• Single hose connector configuration
• Includes PCV valve content as listed
• Direct replacement for select Toyota, Lexus, and Scion crankcase ventilation systems

Product Details

Gates EMH994 is part of the Gates Crankcase Vent Valve line, focused on exact-fit crankcase ventilation pressure regulators, PCV valves, and oil separators. The goal of this product line is straightforward: match OE fitment closely so the part installs cleanly and helps return the emission ventilation system to normal operating performance. This part cross-references 1220436020 for the same application.

Compatible With select applications including 2021 Lexus NX300h, 2018-2020 Lexus NX300h, 2019 Toyota Highlander, 2012-2017 Toyota Camry, 2010 Toyota Camry, 2011-2016 Scion tC, 2016 Toyota RAV4, and 2009-2014 Toyota RAV4. The Gates EMH994 is a fitment-specific solution for vehicles using this crankcase vent valve configuration.

Common Symptoms This Part May Address

• Rough idle related to crankcase ventilation flow issues
• Oil vapor control problems in the PCV system
• Check engine light concerns tied to ventilation performance
• Excess crankcase pressure from a restricted or failing valve
• Emission system operation that no longer matches OE behavior

Installation Notes and Tips

Verify the hose connector size and vehicle application before installation. Compare the original valve to the Gates EMH994 to confirm the steel body, 0.19 in. / 5 mm inside diameter connection, and PCV valve layout match the existing setup. Clean the surrounding hose and mounting area before installing the replacement to help ensure a secure seal and proper ventilation routing.

Quality Assurance

Gates manufactures this crankcase vent valve as an OE-exact replacement part for emission control service. The design focus is accurate fitment, straightforward installation, and restoration of the crankcase ventilation system to proper operating condition.