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Should work on years (1970 1971) please ask and I can look into it for you further if you are unsure and provide your serial number
but nothing significant
Previously installed on a Chevy GM MerCruiser 1978 120hp (Many of the bolts should be the same for the 120hp 2
7L 350 V8 (some older models-check your manual)
305371 / 0305371 Bypass Cover
OMC 121731 0121731 305981 0305981 Lower Unit Water Passage Swivel Housing Nut 60hp Should work on years (1970Part 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