Husqvarna 422719 Lawn Tractor 42-in Deck 3-in-1 Blade Genuine Original Equipment Manufacturer (OEM) Part This blade (part number 422719) is an original equipment manufacturer (OEM) part that fits some Craftsman, Ariens, Husqvarna and Poulan lawn tractors with 42-inch decks. This 3-in-1 blade 422719 is 21-1/4 inches long; 2 blades are needed. The blade replaces part numbers 424752, 532422719 and 532424752. Fits some models starting with 9172037,9172038,9172039,9172502,9172508,9172536,9172537,9172541,9172543,9172547,9172548,9172557,9172558,9172739,9172766,9172867,9172881,9172885,9172886,9172890,9172891,9172892,9172893,9172897,9179863,9179864,9179882,9179900 Fits some Ariens models starting with 57198, 93533, 93604, 96016, 96046, A175B, A195B, A19BA, A2042, A20BH; Husqvarna models 917289610 and 917289620; and some Poulan models starting with 917223, 960420, 960460, PB2042, PP155A, PP175G, PP19A and PP20VA