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Unbolt and remove the old water pump housing
Specification Value OEM Part Number 27-8637251 Material Composite gasket material Application Exhaust elbow block-off (riser to manifold) Cooling System Type Fresh water cooled only Riser Configuration Center riser manifolds with 3" or 4" riser Fitment Years Early 1980s to 2002 Quantity per Package 2 gaskets Package Contents
7L V8 Verify return line exits pump center OMC 7
While our compatibility tables are extensive
Water Pump Impeller Kit – Fits Mercury/Mariner 9.9-25 HP (Replaces 46-99157T2, 85098A2, 99157A2) family-yamaha-90tlrs Unbolt and remove the oldWater Pump Impeller Kit Fits Mercury Mariner 9. 9 25 HP (Replaces 46 99157T2, 85098A2, 99157A2) This water pump impeller repair kit is a direct fit replacement for Mercury and Mariner outboard engines, including 2 Stroke models from 1525 HP (19801997) and 4 Stroke models from 9. 915 HP (specifically BigFoot models). It is designed to restore cooling system performance for popular 18 HP, 20 HP, and Sea Pro Marathon models. Engineered to meet or exceed