Thanks for the suggestion. I have been looking at ones like this on amazon https://www.amazon.com/2800PSI-Pressure-Replacement-Horizontal-Craftsman/dp/B076P3G6LJ/ref=sr_1_3?dchild=1&keywords=pressure+washer+water+pump+horizontal&qid=1587689139&sr=8-3

I have found ones that will fit the 3/4 inch shaft but I was concerned about the shaft sleeve depth.