Gates EMH168 Engine Crankcase Breather Hose - Valve Cover To Intake Tube

OE-Exact Crankcase Breather Hose

Gates EMH168 is an OE-exact engine crankcase breather hose for the emission control and crankcase ventilation system. It is built from durable plastic and formed to match the original routing and connection style for a direct replacement on supported Chevrolet, GMC, and Oldsmobile applications.

For drivers searching for a replacement crankcase ventilation hose for a Chevrolet Blazer, GMC Jimmy, or GMC Sonoma, Gates EMH168 restores the valve cover to intake tube connection with the correct molded shape and push-in ends.

Key Features

• OE Exact replacement for the crankcase ventilation and emission control hose
• Molded plastic construction for original-style fit and routing
• Push-in end type at both connections
• Inside diameters: 13 mm (.52 in) and 17 mm (.68 in)
• Centerline length: 635 mm (25 in)
• Designed for valve cover to intake tube placement
• Gates Emission Control Hose line for emission system service

Detailed Description

The Gates Emission Control Hose line focuses on OE-exact replacement hoses for crankcase ventilation and emission control service. EMH168 is shaped to match the original hose layout, helping maintain proper connection between the valve cover and intake tube while preserving factory-style fit and function. This part number, EMH168, is a direct replacement choice for vehicles that use a molded push-in breather hose in the emission control system.

Compatible With 1996-2005 Chevrolet Blazer, valve cover to intake tube; 2003-2005 GMC Jimmy, valve cover to intake tube; 1996-2001 GMC Jimmy, valve cover to intake tube; 1996-2004 Chevrolet S10, valve cover to intake tube; 2004 GMC Sonoma, valve cover to intake tube; 1996-2002 GMC Sonoma, valve cover to intake tube; and 1996-2001 Oldsmobile Bravada, valve cover to intake tube. This part cross-references GM 12551462 for the same application.

What It Helps Address

• Cracked or brittle crankcase breather hose material
• Improper hose routing at the valve cover to intake tube connection
• Emission system leaks caused by worn hose ends
• Vacuum-related drivability issues tied to damaged ventilation plumbing
• Restoration of factory-style crankcase ventilation flow

Installation Notes and Tips

Verify the hose routing, end style, and inside diameter before installation. EMH168 uses push-in ends and a molded shape, so correct alignment with the valve cover and intake tube is important for a secure fit. Inspect adjoining fittings and nearby ventilation components for wear before installing the new hose. For fitment verification, confirm the vehicle year, make, model, and valve cover to intake tube position against the application list.

Quality Assurance

Gates builds this emission control hose from high-quality materials and to OE-exact specifications to support durability and service life in crankcase ventilation applications. Part number EMH168 is engineered as a direct replacement for supported vehicles in the Gates Emission Control Hose line.