Genuine 31 21 6 793 923 Steering Knuckle Left Side Wheel Carrier

The Genuine BMW Steering Knuckle (part number 31 21 6 793 923) is an OEM replacement left-side wheel carrier designed for BMW 1 Series, 3 Series, and Z4 models. Also known as the swivel bearing, this component acts as the outboard attachment point for the suspension arms and serves as the wheel hub and wheel bearing carrier.

Key Features:

• Built directly by BMW under rigorous testing and developed using reliable materials to tolerate years of heavy use
• Left side (driver side) application
• Direct OEM replacement ensuring proper fit and function
• Critical suspension component connecting wheel assembly to strut and control arms
• Manufactured to BMW's exacting quality standards

This genuine BMW part ensures optimal performance, safety, and longevity compared to aftermarket alternatives. When installing, self-locking fasteners should be replaced with new ones, and bonded rubber fasteners should be torqued to specification with the vehicle on the ground.