Gates EMH686 Engine Crankcase Breather Hose - Valve Cover To Air Cleaner

Gates EMH686 Emission Control Hose

The Gates EMH686 is an OE-exact engine crankcase breather hose built for emission control service. It restores the crankcase ventilation path between the valve cover and air cleaner on select Dodge Durango and Jeep Grand Cherokee applications, using durable plastic construction for a direct replacement fit.

Gates Emission Control Hose parts are engineered for OE-style replacement needs, with attention to original routing, connection style, and service life. The EMH686 is a practical choice when replacing a worn or damaged crankcase ventilation hose on vehicles that require a precise emission system connection.

Key Features

• OE Exact grade replacement for emission control service
• Plastic construction for application-specific durability
• Valve cover to air cleaner routing
• Clip-on and push-in end types for direct-fit installation
• Inside diameter: 15 mm and 18 mm
• Centerline length: 711 mm
• Brand line: Gates Emission Control Hose

Detailed Description

Gates EMH686 is an engine crankcase breather hose designed to replace the original emission hose on vehicles with a valve cover to air cleaner connection. This hose is built to OE-exact standards so the replacement follows the factory-style routing and connection points used in the crankcase ventilation system. For drivers servicing a Dodge Durango or Jeep Grand Cherokee, EMH686 provides a direct replacement solution for the emission hose path that helps maintain proper crankcase ventilation and emission system operation.

This part cross-references 68265330AA for the same application. The Gates EMH686 part number is also useful when searching for an OE-style crankcase breather hose for 2016-2022 Jeep Grand Cherokee, 2021-2022 Jeep Grand Cherokee L, 2022 Jeep Grand Cherokee WK, and 2019-2025 Dodge Durango applications.

What It Helps Address

• Cracked or brittle crankcase breather hose material
• Loose or damaged valve cover to air cleaner hose connections
• Emission system leaks caused by hose deterioration
• Improper crankcase ventilation routing
• Restoration of factory-style emission hose function

Installation Notes and Tips

Verify the hose routing, end style, and diameter match the original part before installation. This hose uses clip-on and push-in ends and is intended for the valve cover to air cleaner position. Inspect adjoining fittings and connection points for wear, carbon buildup, or damage before installing the new hose to ensure a secure seal and proper fit.

Quality Assurance

Gates manufactures this emission control hose as an OE-exact replacement built from high-quality materials for durability and service life. The EMH686 is intended to restore the emission system to proper operation on confirmed applications, including Dodge Durango and Jeep Grand Cherokee models listed in the fitment data.

Compatible Vehicles

• Fits 2019-2025 Dodge Durango, valve cover to air cleaner.
• Fits 2016-2022 Jeep Grand Cherokee, valve cover to air cleaner.
• Fits 2021-2022 Jeep Grand Cherokee L, valve cover to air cleaner.
• Fits 2022 Jeep Grand Cherokee WK, valve cover to air cleaner.