11617501563 Crankcase Vent Valve for BMW 540i 740i 740iL 840Ci

Crankcase Vent Valve for BMW 540i, 740i, 740iL, 840Ci (11617501563)

1. Part Number: This crankcase vent valve is identified by OEM part number 11617501563, ensuring strict compliance with BMW engineering standards. The code validates authenticity and guarantees a factory-precise fit for seamless integration into the engine’s ventilation system.
2. Vehicle Compatibility: Specifically engineered for:
   • BMW 540i (E39) (1996–2003)
   • 740i/740iL (E38) (1995–2001)
   • 840Ci (E31) (1993–1999)
     Compatible with 4.4L V8 engines (M62B44). Verify your vehicle’s production year and engine code for exact fitment.
3. Function & Quality: Regulates crankcase pressure by redirecting blow-by gases back to the intake system, preventing oil leaks and reducing emissions. Constructed from heat-resistant polymer and metal components, it withstands engine bay temperatures up to 140°C and chemical exposure from oil vapors. Precision valves ensure consistent pressure control, avoiding excessive vacuum or pressure buildup. Replacing worn valves restores ventilation efficiency, prevents oil contamination, and preserves engine performance in V8-powered BMW models.

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