Gates EMH709 Engine Crankcase Breather Hose - Oil Separator To Intake Tube

OE-Exact Crankcase Breather Hose

The Gates EMH709 is an OE-exact engine crankcase breather hose for emission control service. It restores the crankcase ventilation path between the oil separator and intake tube with a replacement built from plastic and rubber for durability and long service life.

Compatible with select Cadillac XT5, Cadillac XT6, Chevrolet Blazer, and GMC Acadia applications, this Gates Emission Control Hose line focuses on direct-fit replacement parts for crankcase ventilation and emission system repair.

Key Features

• OE Exact grade for direct replacement fit and function
• Constructed from plastic and rubber for emission system service
• Designed for the oil separator to intake tube connection
• Clip-on and push-in end styles for factory-style attachment
• Protective sleeve included for added hose protection
• Gates EMH709 replacement hose for emission control repair

Detailed Description

The Gates EMH709 crankcase breather hose is built to replace a worn, cracked, or leaking emission hose in the crankcase ventilation system. With OE-exact construction, it follows the original routing and connection style used on the vehicle, helping restore proper airflow between the oil separator and intake tube. This part number is a direct service solution for vehicles such as the Cadillac XT5, Cadillac XT6, Chevrolet Blazer, and GMC Acadia where the emission control hose is specified at the oil separator to intake tube position. Gates EMH709 is also cross-referenced to GM service numbers 12669953 and 12701601 for the same application.

What It Helps Fix

• Cracked or brittle crankcase breather hose material
• Vacuum leaks at the oil separator to intake tube connection
• Emission system airflow disruption
• Rough idle or drivability issues related to hose leakage
• Oil vapor routing problems caused by a damaged hose

Installation Notes and Tips

Verify the hose routing, end styles, and position before installation. This hose uses clip-on and push-in connections, so inspect the mating fittings for wear, debris, or damage before securing the replacement. Confirm fitment by year, make, model, and the oil separator to intake tube location on the vehicle.

Quality Assurance

Gates builds this emission control hose as an OE-exact replacement using materials selected for durability and service life. The Gates EMH709 is intended to restore the emission system to proper operation with factory-style fit and function.