Set of three (3) replacement aftermarket USA made blades that fit Kubota models equipped with a 54" cut mower that include the H30T, Series 2G127, ZG23, GR2100, GR2110, BX-RCK54P, K327  . These are seriously heavy duty replacement blades, remember this listing is for one set of 3 blades..
 
Blade specifications as follows:
Overall Length: 18-5/8"
Width: 2-1/2"
Thickness: 1/4"
Mounting Hole: 0..715 (18.1mm)
 
Fits Models:
 
RCK54-24G
RCK54-75G
RCK54TG on units with serial number over 24207