Ayp OEM Replacement Blade 340-226
FITS MODLES 2004 and newer
Requires 3 for 54'' deck; hi-lift blade 
Length 18 1/2'' (469.9mm) 
Centre Hole 5 pt star 
Outer Hole 3/8'' (9.5mm)
Centre3 3/4'' (95.3mm) 
Width 2 3/4'' (69.9mm)
Thickness .187'' (4.7mm)