Troy bilt 3000 psi pressure washer pump UNIVERSAL fits Honda Excell Troybilt Husky Generac Fits Honda Excell units with 3/4" shaft only. Some Excell units have the 7/8" shaft and this pump will not work. UNIVERSAL PUMP - FITS MANY MAKES AND MODELS! INCLUDES THERMAL RELEASE VALVE FITS 3/4" SHAFT HOLE DISTANCES ARE 2 5/8" CENTER TO CENTER ON OUTER HOLES / 1 7/8" FROM CENTER SHAFT HOLE TO EACH OUTER HOLE.