Water Pump Impeller Kit – Fits Mercury Marine 25-50 HP (Replaces 821354A2, 821354A1) family-yamaha-40elj Safety First: Disconnect the battery

Safety First: Disconnect the battery and ensure the boat is securely positioned on a trailer or lift

Notes Yamaha F150 150 4-Stroke 2004–Present 61A-W0078-A3-00/61A-W0078-A4-00 Current part superseded Yamaha F200 200 4-Stroke 2004–Present 61A-W0078-A3-00/61A-W0078-A4-00 Current part superseded Yamaha F225 225 4-Stroke 2004–Present 61A-W0078-A3-00/61A-W0078-A4-00 Current part superseded Yamaha 225 225 2-Stroke 1992–Present 61A-W0078-A3-00/61A-W0078-A4-00 Yamaha 250 250 2-Stroke 1992–Present 61A-W0078-A3-00/61A-W0078-A4-00 Yamaha S150

It fits a wide range of counter-rotation (left-hand) outboards

or a noticeable reduction in water flow from the exhaust outlet

Note the orientation of the old thermostat before removal

Water Pump Impeller Kit – Fits Mercury Marine 25-50 HP (Replaces 821354A2, 821354A1) family-yamaha-40elj Safety First: Disconnect the batteryWater Pump Impeller Kit Fits Mercury Marine 25 50 HP (Replaces 821354A2, 821354A1) This water pump impeller repair kit is designed for Mercury Marine 25 50 HP 4 Stroke outboards (1998Up), including 25, 30, 40, 45, and 50 HP models. It also fits select Force 40 50 HP outboards from 19951997. This kit serves as a direct replacement for Mercury Quicksilver part numbers 821354A1, 821354A2, and 821354A04, as well as aftermarket parts from Sierra, GLM, and