Gates EMH341 Engine Crankcase Breather Hose - Oil Separator To Engine (Lower) or Oil Separator To Engine (Upper)

Gates EMH341 Emission Control Hose

The Gates EMH341 is an OE-exact crankcase breather hose for emission control service. Built from rubber with molded push-in ends, it restores the crankcase ventilation path between the oil separator and engine on select Volvo applications, including Volvo S60, V70, C70, S40, V40, S80, XC70, XC90, S70, and 850 models.

Gates’ Emission Control Hose line focuses on direct-fit replacement hoses that match original routing and dimensions for service on Volvo crankcase ventilation systems. The EMH341 follows the OE comparison rating of OE Exact for a precise replacement on the specified upper and lower oil separator-to-engine locations.

Key Features

• OE-exact replacement for crankcase ventilation and emission control service
• Rubber construction for durability in engine-bay conditions
• Molded hose design with push-in end types
• Inside diameters: 1 in. (25 mm) and .95 in. (24 mm)
• Centerline length: 3.25 in. (83 mm)
• Direct replacement for the oil separator to engine hose path
• Gates EMH341 part number for accurate ordering and lookup

Detailed Description

The Gates EMH341 emission control hose is engineered as a direct replacement for the crankcase breather hose used in Volvo crankcase ventilation systems. It is constructed from rubber and formed to OE-exact dimensions, with push-in ends that match the original hose connection style. This helps restore proper routing between the oil separator and engine, supporting the intended operation of the emission system on the listed Volvo fitments. If you are replacing a worn or cracked Volvo crankcase breather hose, EMH341 provides a direct-fit service part for the specified applications.

This part cross-references Rein ABV0180 and URO 1271653 for the same application.

What It Helps Address

• Cracked or hardened crankcase breather hose material
• Oil separator hose leaks at the upper engine connection
• Improper crankcase ventilation routing
• Emission system performance issues related to hose deterioration
• Vacuum loss caused by a damaged breather hose

Installation Notes and Tips

Verify the vehicle’s engine number and hose routing before ordering, especially on Volvo S60, V70, XC70, XC90, and S80 applications with engine number 3138170 and before. Confirm the upper or lower oil separator-to-engine position listed for your vehicle, and compare the hose ends and dimensions to the original part before installation. Gates EMH341 is a molded push-in hose, so proper alignment during installation is important to maintain the factory routing.

Quality Assurance

Gates manufactures this hose as an OE-exact replacement in its Emission Control Hose line, using materials selected for durability and service life in crankcase ventilation service. Part number EMH341 is built to restore the original emission hose function on the listed Volvo applications.