Gates EMH321 Engine Crankcase Breather Hose - PCV Valve To Intake

OE-Exact Crankcase Breather Hose for Civic

The Gates EMH321 is an OE-exact engine crankcase breather hose built for emission control service. It restores the crankcase ventilation path between the PCV valve and intake on 2001-2005 Honda Civic applications, using rubber construction and a push-in end for a direct replacement-style repair.

Gates’ Emission Control Hose line focuses on replacement hoses that match original equipment dimensions and routing requirements for emission system service. The EMH321 follows that approach for Honda Civic crankcase ventilation repairs where correct fit and material durability matter.

Key Features

• OE-exact replacement for emission control and crankcase ventilation service
• Rubber construction for flexible routing and everyday engine-bay durability
• Push-in end type for the specified PCV valve to intake connection
• Inside diameter: 7 mm (.26 in.)
• Centerline length: 159 mm (6.25 in.)
• Direct-fit application for 2001-2005 Honda Civic, PCV Valve To Intake

Detailed Description

Gates EMH321 is an engine crankcase breather hose designed for emission control repair on the 2001-2005 Honda Civic. It is built to OE-exact dimensions so the hose routes correctly and supports proper crankcase ventilation between the PCV valve and intake. This part number, EMH321, is a direct replacement choice for Honda Civic owners addressing cracked, hardened, or leaking emission hoses.

This part cross-references Honda 17131PLC000 for the same application.

What It Helps Fix

• Cracked or split crankcase breather hose
• Vacuum leaks at the PCV valve to intake connection
• Emission system airflow disruption
• Hose shrinkage, hardening, or deterioration from heat exposure
• Rough idle or drivability issues related to a leaking ventilation hose

Installation Notes and Tips

Verify the hose routing before removal and compare the original length, diameter, and end style to the EMH321. Inspect the PCV valve, intake nipple, and nearby fittings for wear or carbon buildup before installing the new hose. For best results, confirm fitment on 2001-2005 Honda Civic, PCV Valve To Intake, and ensure the push-in ends seat fully without twisting the hose.

Quality Assurance

Gates manufactures this emission control hose as an OE-exact replacement using high-quality materials to support durability and service life in crankcase ventilation applications.