Homelite Pressure Washer Square Key Replacement #678041007

This video provides step-by-step instructions for replacing the square key (or pump drive key) on Homelite pressure washers. The most common reason for replacing the square key is if it is broken or missing, causing the pump to not run even when the engine is running.

All of the information in this square key replacement video is applicable to the following brands: Homelite, PowerStroke, Black Max, Ryobi

Tools used: pinch off pliers, flat-blade screwdriver, 12mm socket, 1/2 in wrench, torque wrench
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How your pressure washer works:

For additional repair advice and help finding your model number visit the repair help section of our website: Pressure Washer repair help