Gates EMH974 Engine Crankcase Vent Valve - PCV Valve

OE-Exact Crankcase Vent Valve

Gates EMH974 is an engine crankcase vent valve for emission control systems that need a precise OE-style replacement. Built with a plastic body and a single hose connector, it is made to restore crankcase ventilation performance on a wide range of GM vehicles, including Buick Enclave, Chevrolet Traverse, and GMC Acadia applications.

The Gates Crankcase Vent Valve line focuses on exact fit and straightforward installation. For vehicles with PCV valve service needs, EMH974 helps return the emission ventilation system to proper operation while supporting long service life in the crankcase ventilation circuit.

Key Features

• Brand: Gates
• Part number: EMH974
• Engine crankcase vent valve for emission control service
• Plastic construction for OE-style replacement fit
• Single hose connector design
• Includes vent tube content as listed
• Fits PCV valve locations across multiple Buick, Chevrolet, Cadillac, GMC, Pontiac, Saturn, and related applications

Detailed Description

Gates EMH974 is an OE-exact crankcase ventilation pressure regulator designed to match the original fit and function of the factory part. It is used in crankcase ventilation systems where stable pressure control and clean routing of vapors are important to emission system performance. This part cross-references Standard Ignition V546 for the same application. Common search terms for this part include Buick Enclave PCV valve replacement, Chevrolet Traverse crankcase vent valve, and GMC Acadia PCV valve service. The EMH974 part number is also used by buyers searching for a direct-fit replacement for GM crankcase ventilation repairs.

What It Is Used For

• Restoring crankcase ventilation pressure regulation
• Replacing a worn or malfunctioning PCV valve assembly
• Addressing rough idle related to crankcase ventilation faults
• Correcting oil vapor control issues in the emission system
• Supporting proper ventilation on GM engines with PCV valve service points

Installation Notes and Tips

Verify the year, make, model, and position before ordering, since EMH974 is used across multiple GM platforms and model years. Confirm hose routing and connector style against the original part, and inspect the surrounding vent tube and related vacuum lines for wear before installation. For fitment examples, this part fits 2013-2021 Buick Enclave, PCV Valve; fits 2013-2021 Chevrolet Traverse, PCV Valve; and fits 2013-2016 GMC Acadia, PCV Valve.

Quality Assurance

Gates markets this crankcase vent valve as an OE-exact replacement built for accurate fit and dependable restoration of emission ventilation performance. The design is intended to match factory specifications for the listed applications, helping maintain the service life of the crankcase ventilation system.