Buy 2009 Audi A5 Steering Knuckle. 4.2, 5.2 liter. A6; 4.2L; Left. S6; Left. Steering Knuckle - Left, Suspension, Repair - OEM Audi Part # 4F0407253H (4F0-407-253-H, 4F0407253F)

Housing. Steering knuckle.
A knuckle used on a Steering axle that has no additional components attached.

Steering Knuckle

Fits A6, S6

4.2, 5.2 liter. A6; 4.2L; Left. S6; Left.
Steering Knuckle - Repair or Replace
The steering knuckle in your 2009 Audi A5 may need to be replaced if it has become damaged or rusty, which will usually be determined during a related repair.