Water Pump Impeller Kit – Fits Mercury/Tohatsu 4/5/6 HP 4-Stroke (Replaces 8M0120836, 3GR-87500-0) 20hp Other causes include pumping sandy

Other causes include pumping sandy or debris-filled water

and Mercury models listed

Start the engine in water and verify a steady stream from the "tell-tale" water outlet

this impeller fits a specific range of 1- and 2-cylinder models

Water Pump Impeller Kit – Fits Mercury/Tohatsu 4/5/6 HP 4-Stroke (Replaces 8M0120836, 3GR-87500-0) 20hp Other causes include pumping sandyProduct Details This Water Pump Impeller Kit is designed for cooling system maintenance on select Mercury Mariner and Tohatsu 4, 5, and 6 HP 4 stroke outboard engines. It ensures your engine's cooling system operates efficiently, preventing overheating and potential damage. It serves as a direct replacement for Mercury part number 8M0120836 and Tohatsu part number 3GR 87500 0. Engineered for direct fit installation. Crucial for routine cooling system