FAG 9P1-407-621-B Front Wheel Bearing Assembly

The FAG 9P1-407-621-B is a precision-engineered front wheel bearing designed for high-performance applications. This sealed angular contact ball bearing is manufactured by FAG (Fischer Aktien-Gesellschaft), a brand with over 100 years of bearing manufacturing expertise and part of the Schaeffler Group.

Key Features:

• Bore diameter: 1.654 inches (42mm)
• Outer diameter: 3.150 inches (80mm)
• Width: 42mm for optimal load distribution
• Sealed design with lifetime lubrication requires no maintenance
• Active sensor technology compatible with ABS systems
• Angular contact ball bearing design for superior performance
• Manufactured from high-quality steel for durability
• Preset bearing clearance for rugged, reliable operation

This bearing features integrated magnetic sensor technology that works with vehicle ABS systems. The bearing is manufactured to OE specifications and cross-references to FAG part number 805394C. It replaces multiple OEM part numbers including 999-053-042-07, 999-053-042-10, 999-053-054-03, 999-053-054-05, and 999-053-054-06. Sold individually; two required per vehicle for front axle applications.

Installation Note: Proper orientation of the active sensor bearing is critical for correct ABS function. Professional installation recommended to ensure magnetic pickup alignment.