Febi 11-23-8-602-800 Crankshaft Pulley Vibration Damper

The Febi Bilstein 11-23-8-602-800 is a direct-replacement crankshaft pulley with integrated vibration damper, engineered to OEM specifications for BMW applications. Also commonly referred to as a harmonic balancer or crank pulley damper, this component mounts to the front end of the crankshaft and is responsible for transferring rotational power to critical engine accessories including the alternator, power steering pump, and air conditioning compressor via the accessory drive belt.

Beyond belt drive duties, the built-in vibration damper absorbs and neutralizes torsional crankshaft vibrations across the RPM range, protecting the engine's rotating assembly and reducing noise and harshness. A worn or failed pulley can cause accessory belt misalignment, audible knocking, increased engine vibration, or premature failure of belt-driven components.

Key Features:

• Direct OEM replacement — matches original BMW part number 11 23 8 602 800
• Outer diameter: 158 mm | Inner diameter: 38 mm
• 6PK belt profile (6-rib serpentine belt drive)
• Integrated vibration damper for torsional crankshaft protection
• Manufactured by Febi Bilstein — solutions Made in Germany
• OE-matching quality with over 170 years of manufacturing heritage
• Cross-reference part numbers: 11238602800, 49434592, 49444031

Febi Bilstein backs its replacement parts with a 3-year manufacturer's guarantee, reflecting their commitment to quality and installation safety. Professional installation is recommended.