ZD321 Blades

[johndeere1kubota2]

Does anyone know if Gator Mulch blades are available for the ZD 321? I looked at some from Oregon online. The center hole is 1 1/8 and the length is the same on the blades. Oregon gives a Kubota cross reference number but it is not the Kubota number for the original blades. Oregon does specify that the blades are for a kubota 54" deck,

ZD 321, 54" DECK