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ensuring it is correctly oriented and seated on both the saildrive and hull flanges
and re-check for any leaks
Drain the engine coolant into a suitable container by opening the drain plugs or petcocks
engine misfires (especially under load)
You should also regularly inspect the anode and replace it when it is 50% corroded to protect the unit
Upper Exhaust Bellow – Fits MerCruiser 3.0L-5.7L V6/V8 (Replaces 70981A3) 210HP ensuring it is correctly orientedProduct Details This Upper Exhaust Bellow is a crucial component for MerCruiser stern drive engines, connecting the 3 inch center mounted riser to the 4 inch elbow. It fits a wide range of models, including V6 229 262 (1983 and up), V8 Chevy 305 350 377 (1983 and up), and V8 Big Block 454 502 (1981 and up) engines. This part is a direct replacement for multiple OEM and aftermarket numbers, including Mercury MerCruiser 70981A3, 70981B3, and 70981, as
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