Oregon 191-108 John Deere L100 Series 17" Blade, Pack Of 3 Replaces OEM Part Numbers: Arnold - 490-110-0030; John Deere - GX20250,GX20434,GY20568,GX20819; Laser - 91700,91736; Fits: John Deere Models - L120, L130; Sabre Models - 1642HS, 1742HS, 1948GV, 1948HV, 2148HV Requires 3 Blades For 48" Cut Specifications: Width - 2.50"; Thickness - 0.164"; Length - 17"; Center Hole Size - 11/16"; Offset - 1/4"; Air Lift - 1" Made From Boron Steel