Control Rod Lever for Miller Wrecker Models. Fits all Century 200 Series, Holmes 550-2, 440-1 and 440-2, Century 411, 412, 611, 612, 601, 602, 712, 716, 211,311,312, Challenger 4700 and 4800 series wreckers with one piece bodies Takes knob kit 12-0901425 for dual winch wreckers and 12-0901426 for single winch wrecker. Length 9 1/2″Diameter 1/2″Nut 3/8″-16 Coarse Thread UNCFits Century 200 Series, Challenger 4700 Series, Holmes 440 SeriesDimensions: 9.5″ L x 0.6″ W x 0.6″ HOutside Diameter: 0.5″