Buy 2004 Subaru Legacy Axle. Housing R (Left, Rear). Steering Knuckle The steering knuckle in your Knuckle, Steering - OEM Subaru Part # 28411AN03A

HOUSING ASSEMBLY-REAR AXLE,LEFT Suspension Knuckle

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Steering Knuckle
The steering knuckle in your 2004 Subaru Legacy may need to be replaced if it has become damaged or rusty, which will usually be determined during a related repair.