Gates EMH141 Engine Crankcase Breather Hose - Oil Separator To Intake

Gates EMH141 Crankcase Breather Hose

The Gates EMH141 is an OE-exact crankcase ventilation and emission control hose for the oil separator to intake connection. Built from molded plastic with OE-style clip-on and push-in ends, it restores the factory routing used on select BMW crankcase ventilation systems.

Key Features

• OE Exact replacement for the crankcase ventilation/emission hose path
• Molded plastic construction for a factory-style fit
• Clip-on and push-in end design for the specified BMW applications
• Protective sleeve included for added hose protection
• Designed for the oil separator to intake connection
• Gates EMH141 part number for direct identification

Product Details

Gates Emission Control Hose line products are built to replace worn or damaged crankcase ventilation hoses with an OE-style solution. The EMH141 is shaped for the oil separator to intake route and uses the correct molded form, 0.5 in. (13 mm) inside diameter, and 11 in. (279 mm) centerline length to match the listed BMW applications. This hose is a direct-fit service part for BMW 323i, 325i, 330i, X3, X5, Z4, and related models where the factory emission hose connection has failed or deteriorated. If you are sourcing a BMW crankcase breather hose or emission control hose, Gates EMH141 provides the correct replacement profile for the specified vehicles.

This part cross-references Dorman - HELP 46045 for the same application.

Common Problems This Part Can Address

• Cracked or brittle crankcase breather hose material
• Vacuum leaks at the oil separator to intake connection
• Broken or loose quick-connect hose ends
• Emission system faults caused by damaged ventilation routing
• Rough idle or drivability issues related to air leaks in the crankcase ventilation path

Installation Notes and Tips

• Verify the oil separator to intake routing before installation.
• Inspect the mating connectors and surrounding ventilation components for wear or contamination.
• Confirm the hose shape and end style match the vehicle’s original configuration before assembly.
• Use the listed BMW application details to confirm fitment for your exact year and model.

Quality Assurance

Gates builds this emission control hose as an OE-exact replacement using durable materials for service life and factory-style operation. The EMH141 is engineered to restore the emission system’s intended function on the listed BMW applications.

Compatible Vehicles

• Fits 2001-2006 BMW 325Ci, Oil Separator To Intake
• Fits 2001-2006 BMW 330Ci, Oil Separator To Intake
• Fits 2004-2006 BMW X3, Oil Separator To Intake
• Fits 2001-2006 BMW X5, Oil Separator To Intake
• Fits 2001-2005 BMW 325i, Oil Separator To Intake
• Fits 2001-2005 BMW 325xi, Oil Separator To Intake
• Fits 2001-2005 BMW 330i, Oil Separator To Intake
• Fits 2001-2005 BMW 330xi, Oil Separator To Intake
• Fits 2001-2005 BMW 525i, Oil Separator To Intake
• Fits 2001-2005 BMW 530i, Oil Separator To Intake
• Fits 2005 BMW X3, Oil Separator To Intake, W/Cold Weather Pkg.
• Fits 2003-2005 BMW Z4, Oil Separator To Intake
• Fits 2004 BMW Z4, Oil Separator To Intake, W/Cold Weather Pkg.
• Fits 2001-2002 BMW Z3, Oil Separator To Intake
• Fits 2000 BMW 323Ci, Oil Separator To Intake, Jan. 1, 2000 & Newer
• Fits 2000 BMW 323i, Oil Separator To Intake, Jan. 1, 2000 & Newer
• Fits 2000 BMW 328Ci, Oil Separator To Intake, Jan. 1, 2000 & Newer
• Fits 2000 BMW 328i, Oil Separator To Intake, Jan. 1, 2000 & Newer
• Fits 2000 BMW 528i, Oil Separator To Intake, Jan. 1, 2000 & Newer
• Fits 1999-2000 BMW Z3, Oil Separator To Intake, Jan. 1, 2000 & Newer
• Fits 1999 BMW 323i, Oil Separator To Intake, W/E46 Chassis; Jan. 1, 2000 & Newer
• Fits 1999 BMW 328i, Oil Separator To Intake, W/E46 Chassis; Jan. 1, 2000 & Newer