Previous page Next page Previous page Next page 1 Pressure Washer Pumps 2 Pumps & Spray Kits 3 Guns, Wands & Nozzles 4 Parts & Accessories Pressure Washer Pumps Model RMW22G24-EZ-SX Add to Cart Model 308653052 Add to Cart Model 308418003 Add to Cart Model 308653035 Add to Cart Model 308653071 Add to Cart Model CP3625 Add to Cart Customer Reviews 5.0 out of 5 stars 1 5.0 out of 5 stars 1 — — — — Price $139.99$139.99 $84.99$84.99 $104.99$104.99 $99.99$99.99 $84.99$84.99 $199.99$199.99 Manufacturer Annovi Reverberi Himore Himore Himore Himore Himore Shaft 7/8" 7/8" 7/8" 7/8" 3/4" 3/4" Gallons per Minute 2.2 2.3 2.5 2.5 2.5 2.5 Max PSI/Min PSI 2400/2200 2800/2600 2600/2400 3100/2900 3000/2800 3600/3200 Orientation Vertical Vertical Horizontal Vertical Versatile Horizontal Are pressure washer pumps interchangeable? Many pumps are. However, compatible replacement options do vary depending on your pressure washer’s engine shaft diameter & engine orientation, the original pump’s bolt pattern, and your engine's horsepower. What pump do I need if my shaft has a spline/gear instead of a keyway? Your original pump was likely a strap-style (or bow tie) pump. That style isn’t made anymore. However, you can remove the spline and use your model number to find a replacement pump that you’ll install directly onto the shaft with a keyway. Do I need a keyway for installation, and do your pumps come with one? Our pumps do require a keyway for installation onto the engine shaft. If a keyway is pictured in the listing, it will come with one. If you need to purchase one separately, you can do so from our catalog. Do I need to change the oil in my pump? Many of our pumps don’t require oil maintenance, but some models do need oil changes. Generally, pumps with an oil vent port will need regular oil changes. Pumps without that port are sealed units and don’t need oil changes.