Genuine 11617836945 BMW Crankcase Vent Hose Cylinders 1-5

The Genuine BMW 11617836945 is a factory crankcase breather vent hose designed for cylinders 1-5 in high-performance BMW M5 and M6 models. This OEM component is a critical part of the engine's positive crankcase ventilation (PCV) system, directing combustion gases from the crankcase back through the intake system for proper emissions control and engine performance.

Key Features:

• Genuine BMW factory part manufactured to exact OEM specifications
• Designed specifically for cylinders 1-5 crankcase ventilation
• Constructed from heat-resistant materials to withstand continuous heating and cooling cycles
• Ensures proper crankcase pressure regulation and emissions compliance
• Direct replacement for BMW part numbers 11617836945 and 11617834217

Over time, breather hoses can become brittle and crack due to exposure to engine heat and oil vapors, potentially causing vacuum leaks, rough idle, or check engine lights. Replacing this hose with a genuine BMW part ensures a proper seal and restores optimal engine performance. This factory part is designed to work seamlessly with other BMW components for maximum reliability and longevity.