Gates EMH243 Engine Crankcase Breather Hose - Valve Cover To Intake Tube

Gates EMH243 Crankcase Breather Hose

The Gates EMH243 is an OE-exact engine crankcase breather hose for emission control service. Built from molded plastic with clip-on ends, it restores the crankcase ventilation path and helps return the emission system to proper operation on select Ford Focus models.

Gates Emission Control Hose products are built around OE-style fit and material selection for replacement work where factory routing and connection style matter. The EMH243 follows the original hose layout with molded construction and quick-connect ends for a direct service replacement.

• OE Exact replacement for emission control and crankcase ventilation service
• Molded plastic construction for factory-style routing
• Clip-on end type with two quick connectors
• Inside diameter: 16 mm (0.635 in.)
• Centerline length: 508 mm (20 in.)
• OE comparison rating: OE Exact
• Fits 2005-2007 Ford Focus, Valve Cover To Intake Tube
• Fits 2009-2010 Ford Focus, Valve Cover To Intake Tube, W/PZEV Emissions; Emission Control Hose

Use the Gates EMH243 when replacing a cracked, hardened, or leaking crankcase breather hose in the emission control system. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. It is a direct-fit solution for Ford Focus valve cover to intake tube routing, including 2005-2007 Ford Focus and 2009-2010 Ford Focus applications. The EMH243 part number is also referenced as an OE-style replacement for service matching on the same vehicle platform.

Common Problems This Hose Can Address

• Crankcase ventilation hose cracking or splitting
• Emission system leaks caused by worn hose material
• Improper hose routing after a failed replacement part
• Loose or damaged clip-on connections
• Check engine concerns related to crankcase ventilation flow

Installation Notes and Tips

Confirm the hose path, end style, and centerline length before installation. Inspect the valve cover and intake tube connection points for damage, carbon buildup, or broken retainers, and replace any worn mating components as needed. Because this hose uses clip-on ends and molded routing, align it carefully with the original OE path to avoid stress on the connectors.

Quality Assurance

Gates builds this emission control hose from high-quality materials for durability and service life. The EMH243 is an OE-exact replacement intended to restore factory-style operation in the crankcase ventilation system.