A-990281-AI Bearing (204FF)One New Aftermarket Replacement 204FF Ball Bearing (A 990281 AI) This 204FF ball bearing is a precision manufactured single row radial ball bearing used across a wide range of agricultural, construction, and lawn and garden equipment applications. The 204FF designation is a standardized bearing size shared across multiple OEM brands, making it a common replacement part for alternators, generators, and rotating shaft assemblies on farm implements and