Gates EMH977 Engine Crankcase Vent Valve

Gates EMH977 Crankcase Vent Valve

The Gates EMH977 crankcase vent valve is an OE-exact replacement for emission control service, built for a precise fit and straightforward installation. It helps restore proper crankcase ventilation performance on applications such as Chevrolet Colorado, GMC Canyon, and Chevrolet Malibu.

Key Features

• Plastic valve body for OE-style construction
• Inside diameter: 7 mm (.26 in.)
• Single hose connector design
• Includes PCV valve, bolt, and O-ring
• Direct replacement for Gates EMH977 applications

Product Details

Gates EMH977 is an engine crankcase vent valve in the emission control category, engineered to match original equipment dimensions for accurate fitment. The Gates crankcase ventilation product line focuses on pressure regulators, PCV valves, and oil separators that restore ventilation system operation and help maintain normal performance levels. This part cross-references Standard Ignition V570 for the same application.

Compatible With 2016-2022 Chevrolet Colorado, N/A; 2015-2022 GMC Canyon, N/A; 2019-2021 Chevrolet Blazer, N/A; 2017-2021 GMC Acadia, N/A; 2017-2020 Buick Envision, N/A; 2014-2019 Chevrolet Impala, N/A; 2013-2017 Cadillac ATS, N/A; 2016 Chevrolet Malibu Limited, N/A; 2014-2015 Cadillac CTS, N/A; 2013-2015 Chevrolet Malibu, N/A.

Common Issues This Part Addresses

• Crankcase ventilation system fault codes
• Excess crankcase pressure from a worn vent valve
• Rough idle related to PCV system restriction
• Oil vapor control concerns in the emission system
• Vacuum leaks at the valve or hose connection

Installation Notes and Tips

Verify the hose connector size and valve orientation before installation. Inspect the mating surface, hose condition, bolt, and O-ring during service to help ensure a secure seal. Confirm vehicle application by year, make, and model before ordering; this part fits 2016-2022 Chevrolet Colorado and 2015-2022 GMC Canyon among other listed applications.

Quality Assurance

Gates OE-exact emission control components are built to match original fit and function requirements for the listed applications. The EMH977 part number is used across multiple GM applications, including Chevrolet Malibu and Cadillac ATS, to support consistent replacement selection.