Genuine BMW 11-15-8-647-298 Crankcase Breather Hose Connecting Line

The Genuine BMW 11-15-8-647-298 Crankcase Breather Hose is a critical engine ventilation component designed to maintain proper crankcase pressure and prevent oil leaks. This connecting line is part of the Positive Crankcase Ventilation (PCV) system, which allows combustion gases to escape the crankcase in a controlled manner, ensuring optimal engine performance and longevity.

Key Features:

• Genuine BMW OEM part for guaranteed fit and quality
• Engineered to withstand extreme engine temperatures and oil vapor exposure
• Prevents vacuum leaks that can cause rough idle and check engine lights
• Essential for proper emission control and engine pressure management
• Direct replacement for worn or cracked original equipment

This crankcase breather hose connects critical components in the PCV system to transport gases efficiently through the ventilation circuit. Over time, exposure to heat and oil vapors causes these hoses to become brittle and crack, leading to vacuum leaks, poor fuel economy, and potential engine codes. Regular inspection and replacement at recommended service intervals helps maintain smooth engine operation and prevents more costly repairs.

Replaces Part Numbers: 11-15-7-646-724, 11-15-8-635-842