URO 278-010-04-31 Engine Crankcase Vent Valve Breather Cover

The URO 278-010-04-31 is an engine crankcase vent valve, also known as a breather cover or housing cover with coupling. This critical engine component regulates crankcase pressure by allowing gases to vent from the engine crankcase into the intake system while preventing oil and contaminants from escaping.

Key Features:

• Direct replacement for Mercedes-Benz OEM part number 2780100431 (278-010-04-31)
• Functions as both a crankcase ventilation valve and breather housing
• Helps maintain proper crankcase pressure and engine performance
• Manufactured by URO as an aftermarket alternative to genuine Mercedes-Benz parts
• Includes integrated coupling for hose connection

This component is essential for the positive crankcase ventilation (PCV) system, which helps reduce emissions and prevent oil leaks caused by excessive crankcase pressure. Regular replacement of the crankcase vent valve ensures optimal engine breathing and longevity.