Replace 422719 424752 With 134149 Mower Blades For Craftsman Hu Sqvarna Poulan ?Application?These mulching blades are shaped to keep the grass under deck for longer allowing it to be cut into smaller pieces, which provides natural mulch for your lawn since smaller clippings will decompose quicker, perfect for bagging, discharging, or mulching grass clippings. ?Replace Part Numbers?134149, 532134149, 777134149, 917777134149, 422719, 532422719, 917532422719, 424752, 532424752, 917532424752, 24676, 91724676, 594892701, 582920301, 531005085, 531307223, 539110460, 954636867, 917539110460. Please check with your original part number before ordering. ?Compatible Models?Lawn mower blades are ideal for ? Craftsman: LT1000, LT2000, YT3000, YT4000, YS4500, etc. ? Hu sqvarna: LT125, LTH130, YTH1842, YTH20F42T, YTH2042, etc. ? Poulan Pro: PB19H42YT, PB195H42LT, PB145G42, PB15542LT, PD17542LT, etc. ? Statesman, Ryobi, Weed Eater, Murray, Jonsered, A riens Arians 42" deck ride on mowers. For more models, please check the description. ?Easy to Install?The mulcher blades with 5 point star center holes are installed with the curved ends facing the mower deck to make the better flow of the cuttings. ?Package Includes?2 lawnmower blades (already sharpened). Length: 21", width: 2-1/4", thickness: 0.134", center hole point-to-point distance: 1". Made of heavy-duty metal.