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MerCruiser 165hp 6cyl GM 250 applications 1968-1972
Manufacturer Specified Length: 16ft / 16' / 16 FT
8L V6 229cid applications 1981-1985 Do not confuse these for 4
Yamaha Outboard Boston Whaler Carolina skiff Two Stroke 2 Cycle
but nothing significant
OMC 121731 0121731 305981 0305981 Lower Unit Water Passage Swivel Housing Nut 60hp MerCruiser 165hp 6cyl GM 250Part Number(s) Included 121731 0121731 Nut (Swivel Housing or Water Passage Housing Stud) 305981 0305981 Washer You get a set of 6 of each as pictured General Application Compatibility Would have been found on Various OMC applications, but mainly to attache the water passage housing on the lower unit of the Cobra Drives (1986 1993) and the Swivel Housing on the Mechanical Shift OMC Stringer Drives (1978 1985) Other Details Freshwater Used Parts