Gates EMH305 Engine Crankcase Breather Hose - Valve Cover To Intake Tube or Valve Cover To Throttle Body

OE-Exact Crankcase Breather Hose

Gates EMH305 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 between the valve cover and throttle body or intake tube on select Nissan and INFINITI applications.

The Gates Emission Control Hose line focuses on direct-fit replacement hoses that match original routing and dimensions for cleaner service and consistent operation. EMH305 follows that approach with OE comparison rating and application-specific fitment for Nissan Murano, Maxima, Altima, Pathfinder, and INFINITI QX60 and JX35 models.

Key Features

• OE Exact replacement for crankcase ventilation and emission control service
• Rubber construction for everyday engine-bay durability
• Molded hose design with push-in end types
• 15 mm inside diameter at both ends
• 16.37 in. centerline length for application-specific routing
• Direct replacement for Nissan and INFINITI emission hose applications
• Gates EMH305 part number for accurate ordering and lookup

Detailed Description

Gates EMH305 is an engine crankcase breather hose engineered for emission control systems that route vapors from the valve cover to the throttle body or intake tube. Its OE-exact profile, molded shape, and push-in connections help match the original hose layout on vehicles such as the Nissan Murano, Nissan Maxima, Nissan Altima, Nissan Pathfinder, INFINITI QX60, and INFINITI JX35. If you are replacing a cracked or hardened breather hose, EMH305 provides a direct-fit service part for restoring the factory ventilation path.

This part cross-references Nissan 11826JA10A for the same application.

What It Helps Address

• Cracked or split crankcase breather hose
• Vacuum leaks in the emission control hose path
• Oil vapor routing issues between the valve cover and throttle body
• Rough idle caused by deteriorated ventilation hose connections
• Check engine light conditions related to crankcase ventilation flow

Installation Notes and Tips

Verify the hose routing, end style, and centerline length before installation. EMH305 uses push-in ends and molded construction, so proper alignment matters when connecting the valve cover to the throttle body or intake tube. Inspect nearby fittings and plastic ports for wear, oil residue, or cracking before installing the new hose.

For fitment reference, this hose is used on 2015-2023 Nissan Murano, 2009-2021 Nissan Maxima, 2007-2016 Nissan Altima, 2018 Nissan Altima, 2013-2015 Nissan Pathfinder, 2016 Nissan Pathfinder, 2014-2016 INFINITI QX60, and 2013 INFINITI JX35.

Quality Assurance

Gates manufactures EMH305 as an OE-exact replacement hose for emission control and crankcase ventilation service. The design uses high-quality materials and application-specific dimensions to support proper fit and long service life in the intended Nissan and INFINITI applications.