URO 2720181382 Engine Crankcase Breather Hose

Engine Crankcase Breather Hose for Mercedes-Benz

This URO engine crankcase breather hose restores the connection between the oil separator and breather cover on select Mercedes-Benz models. Built from AEM material with a molded, black three-branch design, it supports proper crankcase ventilation and hydrocarbon emission control.

• URO Part Number: 2720181382
• Material: AEM for resistance to engine heat and oil vapor
• Molded construction with 3 hose connectors and 3 branches
• Black finish for OE-style appearance
• End inside diameters: 5.25 and 9.44
• Guaranteed fitment for listed applications

Fitment and Application Details

Compatible with Mercedes-Benz crankcase ventilation systems that route from the oil separator to the breather cover. Fits 2006-2011 Mercedes-Benz C350, N/A; Fits 2008-2012 Mercedes-Benz C300, N/A; Fits 2006-2007 Mercedes-Benz C230, N/A; Fits 2006-2007 Mercedes-Benz C280, N/A; Fits 2006-2009 Mercedes-Benz CLK350, N/A; Fits 2006-2011 Mercedes-Benz E350, N/A; Fits 2010-2012 Mercedes-Benz GLK350, N/A; Fits 2006-2011 Mercedes-Benz ML350, N/A; Fits 2010-2011 Mercedes-Benz ML450, N/A; Fits 2006-2011 Mercedes-Benz R350, N/A; Fits 2005-2011 Mercedes-Benz SLK350, N/A; Fits 2006-2008 Mercedes-Benz SLK280, N/A; Fits 2009-2011 Mercedes-Benz SLK300, N/A; Fits 2010-2013 Mercedes-Benz S400, N/A.

This part cross-references Genuine 2720181382 and Rein ABV0145 for the same application. The URO 2720181382 is also listed against OE-style replacement references 2720180282, 2720181182, and URO-011731.

What This Hose Helps Address

• Cracked or split breather hose causing crankcase ventilation leaks
• Oil vapor seepage around a deteriorated hose
• Improper crankcase pressure control from a failed OE hose
• Emission-related drivability issues tied to breather system leakage
• Vacuum loss in the oil separator to breather cover circuit

Installation Notes and Tips

Replace the hose when the original part shows cracking, hardening, or oil-soaked deterioration. Verify the routing from the oil separator to the breather cover before installation, and confirm the molded branches and connector sizes match the vehicle’s factory layout. This hose is a direct replacement for the listed Mercedes-Benz applications, including C300, E350, and ML350 models.

Quality Assurance

URO backs this part with a 24-month unlimited mileage warranty. The hose is made from heat- and oil-vapor-resistant materials to help maintain crankcase ventilation performance over time.