【Replace for Part Numbers】for Scotts M139802, M145969, for John Deere M127129, M139802 Lawn Mower Blades 【Compatible Models】for John Deere LT160 series 42" C deck; 1742GS and 1742HS Sabre lawn tractors; requires 2 for 42" deck; for Scotts S1642 and S1742, 1999-2001 series with 42" deck. 【Compatible Models】for Sabre 1842GV, 1842HV, 1848GV, 1848HV, 1542GS, 1542HS, 15542GS, 15542HS, 1642, 1742GS, 1742HS 【Blade Specs】Length: 21 4/9 inches, Width: 2 3/4 inches, Thickness: 0.157 inches, Center Hole: 3/4 inches, For Deck Size: 42 inches 【Notice】Each of our blades undergoes strict quality inspection before leaving the factory. Let us know if you encounter problems during purchase and use, and we will provide satisfactory service!