These are for a regular 54" deck NOT A 54C deck Set of 3 blades Fits the following mowers with a 54" deck: 325, 335,345 FC400V, FC401V, FC420V, FC540V, FC590V F725, F735 G100 GS25, GS30, GS45, GS75 HD45, HD75 Sabre - 2254HV, 2354HV, 2554HV Scotts - S2554 ? These are original OEM blades, not aftermarket Thanks for looking!