Genuine Mercedes Crankcase Breather Hose

The Genuine Mercedes Crankcase Breather Hose is an OEM engine crankcase ventilation hose, also called a crankcase vent hose or PCV breather hose. It is made to Mercedes-Benz specifications. It carries crankcase vapors and blow-by gases from the engine's crankcase to the intake or air-management system as part of the factory ventilation system.

Key Features:

• Genuine Mercedes-Benz OEM part built to factory specifications
• Designed to carry crankcase vapors and blow-by gases within the engine ventilation system
• Made to withstand the heat, oil vapor and under-hood conditions typical of engine bays
• Helps keep crankcase pressure under control and supports emissions performance
• Matches the original equipment for a precise fit and reliable sealing

Over time, breather hoses can become brittle, crack or collapse. This can cause oil leaks, rough idle, vacuum leaks or check engine lights. Replacing a worn hose with a genuine Mercedes-Benz part helps restore proper engine ventilation and dependable performance.