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release the tension and carefully slide the belt off the idler pulley
Cross-check the OEM part number with our "Part Number Matrix" for final confirmation
or blades that have become stiff and brittle
A dry-joint gasket on a wet-joint system will block coolant flow
Locate the raw water pump and remove the cover plate screws to access the old impeller
Water Pump Impeller Repair Kit – Fits Mercury/Mariner 3.9-9.8 HP (Replaces 46-92970A5, 47-89980T1) 135-150HP release the tension and carefullyProduct Details This Water Pump Impeller Repair Kit is designed for Mercury Mariner 2 stroke outboard engines including 3. 9, 4, 4. 5, 6, 7. 5, and 9. 8 HP models from 19751986. Fitment is specific to models with a 0. 438" impeller insert, ensuring proper water circulation to prevent overheating. It serves as a direct replacement for Mercury part numbers 46 92970A5, 47 89980T1, and 47 89980Q1, and is interchangeable with QuickMarine 92970A5. Installs
