2 pcs Mower Blades Compatible with 42" Decks Husqvarna: YTH150, YT1942，YTA18542，YTA19K42，YTH1542，YTH2242，YTH180，YTH1542B, YTH1542C, YTH1542XP, YTH1542XPE, YTH1542XPG, YTH180, YTH184T, YTH1842, YTH18542, YTH2042, YTH20K42, YTH2242A, YTH2242B and more Compatible with 42" Decks Poulan Models: PB145G42, 15542LT, PB155G42, 17542LT, PB185A42, PB195A46LT, PB195H42LT, PB20A42LT, PB20H42YT, PB22H42YT, PO14542LT, PO175A42LT, PP145H42, PP145H42A, PP155G42, PP155H42, PP175G42，PP185A42 and more Replaces OEM Part Numbers: AYP/Husqvarna/Poulan/Craftsman 134149, 138971, 138498, 144959, 144959D, 127843, 24676, 24690, 422719, 424752, 531005085, 531307223, 532422719, 532424752, 539110460, 91724676, 917127843, 917532422719, 917532424752 Replaces: Ariens 21546095; AYP 127843, 134149, 138498, 138971, 138971X431, 531307224, 532134149, 532138971, 917127843, 917131323, 917138498MS, 917532138498 Includes 2 pcs Mulching Blades, Measures 21" in length and 2-1/4" in width, 5-point Star Center Hole design 134149 Mower Blades for Craftsman Hu sqvarna Poulan Pro 42 inch Deck, 532134149 Mulching Blades for Craftsman LT1000 YT4000, Hu sqvarna YTH18542 YT150 Rider Lawn Tractor, Replace 422719 424752