Gates EMH301 Engine Crankcase Breather Hose - Valve Cover To Intake

Gates EMH301 Crankcase Breather Hose

The Gates EMH301 is an OE-exact engine crankcase breather hose for emission control service. Built from rubber with molded push-in ends, it restores the crankcase ventilation path on select Nissan applications and supports proper emission system operation.

Key Features

• OE-exact replacement for the crankcase ventilation and emission control hose
• Rubber construction for durability and service life
• Molded hose with push-in ends for a direct-style replacement
• 10 mm inside diameter at both ends
• 8 in. centerline length for the specified application
• Fits 2007-2012 Nissan Altima, valve cover to intake

Detailed Description

Gates EMH301 is part of the Emission Control Hose line, a product line focused on replacement hoses that match OE form and function for emission system service. This hose is built to replace the crankcase breather hose used between the valve cover and intake on 2007-2012 Nissan Altima models. The molded rubber construction and OE Exact comparison rating help maintain the original routing and connection style required for proper crankcase ventilation.

This part cross-references Nissan 11823JA00A for the same application. If you are searching for a 2007-2012 Nissan Altima valve cover to intake emission control hose, Gates EMH301 is the direct replacement to compare against the original hose specification.

What It Helps Address

• Cracked or deteriorated crankcase breather hose
• Vacuum leaks at the valve cover-to-intake hose path
• Improper crankcase ventilation routing
• Emission system performance issues caused by hose wear
• Oil vapor transfer problems related to a damaged breather hose

Installation Notes

Verify the hose routing, end style, and dimensions before installation. This hose uses push-in ends and is molded to match the OE-style path, so correct alignment at the valve cover and intake connection points is important. Inspect adjoining fittings and ports for wear, contamination, or damage before installing the replacement hose.

Quality Assurance

Gates manufactures this emission control hose as an OE-exact replacement intended to restore the emission system to proper operation and performance. The rubber construction is selected for durability and long service life in crankcase ventilation service.