2016-2019 BMW 7 Series Rear Left Steering Knuckle 621654
Specifications
OEM number
621654
Side
Left (driver side)
Position
Rear
Donor year
2016
Body style
Sedan
Fuel
Gas
Engine size
4.4 L
Transmission
Auto
Drivetrain
AWD
Suspension
Air
Trim
Xdrive m package
Donor mileage
87000
Paint code
A89 Imperial Blue Brilliant Effect
About this part
Also known as
Rear Spindle
Wheel Carrier
Hub Carrier
Rear Upright
Suspension Knuckle
Rear Spindle Carrier
What this part does
The rear steering knuckle, commonly referred to as the wheel carrier, serves as the central mounting foundation for the rear wheel hub, bearing, suspension control arms, and brake caliper. On all-wheel-drive platforms, it features a specialized opening to accommodate the outer CV joint of the rear axle shaft passing through the center to drive the wheels. It is precision-cast to maintain exact suspension geometry for factory alignment and handling. When this component is bent or fractured from a pothole or curb impact, the vehicle will suffer from severe alignment deviations, rapid tire wear, and unpredictable handling characteristics.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 7 Series | 2016-2019 | 4.4L |
OEM and interchange numbers
621654
Before you order
Always verify the 621654 part number against your existing component, as xDrive (AWD) and rear-wheel-drive models utilize entirely different knuckles to accommodate or block off the axle shafts. It is highly recommended to press in a new wheel bearing during installation, as transferring a used bearing from the old knuckle is typically impossible without causing internal damage to the bearing races. Ensure you inspect your adjacent control arms, trailing links, and bushings; an impact severe enough to bend the aluminum wheel carrier frequently compromises the surrounding suspension links.
