set of 4 blades 

Replaces
AYP/ROPER/SEARS: 127843, 138498, 138498, 138971, 138971, 138971X431, 532138971
HUSQVARNA: 53-21278-43, 53-21384-98, 53-21389-71, 532 13 84-98, 532 13 89-71

Fits Models
AYP/ROPER/SEARS: LTH1342, LTH1342A, YTH1542XP, YTH1542XPG, 2 for 42", 2 for 42", 20" Cuts
HUSQVARNA: LTH1342, LTH1342A, YTH1542XP, YTH1542XPG
POULAN: CO185H42STC, CO18542STB, C20H42YT, DB24H42YT, HDK19H42, HD17542, HD1842, PBA195H42LT, PB1842LY, PB185H42LT, PB19H42YT, PB195H42LT, PB20H42LT, PB20H42YT, PB20H42YT, PD17542LT, PD185H42STB, PD22H42STA, PK1942LT, PO15542LT, PO175H42ST, PO17542LT, PR20PH42STD
SOUTHERN STATES: SO1742STA, SO17542LT, SO19H42LT
VIKING: 2 for 42"
WEED EATER: WET2242STD