Genuine 11 61 1 440 317 Oil Separator Crankcase Ventilation Hose

The Genuine BMW 11 61 1 440 317 Oil Separator Hose is an OEM replacement component designed for the crankcase ventilation system. This hose connects the oil separator to the intake manifold, allowing filtered crankcase gases to be recirculated back into the combustion process.

Key Features:

• Genuine BMW OEM part ensures perfect fitment and quality
• Direct replacement for worn or deteriorated original hose
• Manufactured to BMW's strict quality standards
• Maintains proper positive crankcase ventilation (PCV) system operation
• Prevents vacuum leaks that can cause rough idle and check engine lights

Over time, oil separator hoses can become brittle and crack due to heat exposure and oil saturation, leading to vacuum leaks, decreased engine performance, and increased emissions. Replacing this hose with a genuine BMW part restores proper crankcase ventilation system function and helps maintain optimal engine performance.