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Item Details MerCruiser McGill Shift Interrupter Neutral-Safety Shift Cut-Out Kill Switch 39670A22
20 Spline Applications (1976 & UP) - Do not confuse this with the earlier couplers that had 25 splines
Picture #3 shows the damage in this head
Superseded / Equivalent / Related P/N: 87-91019A3 / 87-861780A1 / 87-861780A4 / 87-861780Q4 / 87-892150A02 / 87-892150Q02 / Sierra 18-5116-1 / 87-892150K02
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OMC 907886 0907886 Front Exhaust Manifold End Cap 165hp 6cyl GM Double Hose 1972 9.5hp Item Details MerCruiser McGill ShiftPart Number(s) Included OMC 907886 0907886 Front Manifold Cap General Application Compatibility OMC 4. 1L 165hp Inline 6 cylinder GM Engines 1972 Only (both the cooling systems for "C" and "S" models Other Details Freshwater Used Parts Purchase with confidence!