Brand New in box. For V6 Mechanical/Hydraulic Shift 200HP (1976) 175, 200 HP (1977) 150, 175, 200, 235 HP (1978) These gear sets are an exact copy of the gears used in the first V6 Johnson/Evinrude Outboards , OMC gear housings. Forward gear drives a hydraulic pump. Replaces OMC 500494, 435088