Standard Ignition V784 Engine Crankcase Breather Hose

Engine Crankcase Breather Hose for Ford Focus

Standard Ignition V784 is an engine crankcase breather hose for emission control service on select Ford Focus models. It routes crankcase vapors through the ventilation system and uses a protective sleeve for added abrasion resistance in the engine bay.

Key Features

• Engine crankcase breather hose for emission control and crankcase ventilation service
• Fits 2005-2007 Ford Focus
• Two hose connectors and two ports for direct routing
• Protective sleeve included for added surface protection
• No clamp included
• No mounting hardware included
• Standard Ignition V784 replacement part

Detailed Description

Standard Ignition V784 is built for crankcase ventilation service on the 2005-2007 Ford Focus. This hose connects the crankcase ventilation path and helps maintain proper vapor routing within the emission control system. The design includes two hose connector points and a protective sleeve, making it a practical replacement for a worn, cracked, or oil-softened breather hose. This part cross-references 4S4Z6A664AA for the same application.

What It Helps Fix

• Cracked or split crankcase breather hose
• Oil vapor leakage in the crankcase ventilation path
• Rough idle caused by ventilation hose deterioration
• Vacuum-related drivability issues tied to hose failure
• Emission system faults related to damaged breather routing

Installation Notes and Tips

Verify hose routing against the original layout before installation. Inspect adjoining connectors and nearby ventilation components for wear, oil saturation, or brittleness, and replace any damaged mating parts as needed. Confirm the hose seats fully on both ports and that the protective sleeve is positioned to avoid contact with hot or abrasive surfaces.

Quality Assurance

Standard Ignition supplies replacement emission control components for service applications, and V784 is listed with direct fitment for the 2005-2007 Ford Focus. Confirm part number V784 and vehicle application before installation.