THIS IS A BRAND NEW HORIZONTAL BRASS HEAD PRESSURE WASHER PUMP. IT FITS MANY MAKES AND MODELS ONLY WITH A 3/4" SHAFT. WILL NOT FIT ANY PUMP THAT IS NOT A 3/4" SHAFT. WORKS WITH PRESSURE WASHER UNITS FROM 2800 TO 3000 PSI. 2.4 GPM MAXIMUM 2.5 GPM. INCLUDES A THERMAL RELEASE VALVE. THE HOLE DISTANCES ARE 2 5/8" CENTER TO CENTER, OUTER HOLES 1 7/8" FROM CENTER SHAFT HOLE TO EACH OUTER HOLE.