Milwaukee Twins Steering Head Dust Shield Set Milwaukee Twins Steering Head Dust Shield Set has been constructed from stamped steel and chrome plated for a perfect OE replacement. Dust shield set replaces the upper and the lower dust shields on Big Twin models. It includes both the original style lower cover, and the later upper shield. Features: Chrome upper and lower triple tree bearing dust shield Replaces OEM 43865-48 A / 48361-80