For sale is a NEW mower deck spindle assembly for the John Deere 54" mower decks. The models that this spindle fits is listed below. This spindle replaces John Deere AM121342, AM121229. Thanks for looking.Description Spindle AssemblyJohn Deere AM121342Replaces OEM: John Deere: AM121229, AM121342Fits Models: John Deere180,240,245,260,265,285,320,325,335,345,LX172, LX173, LX176, LX178, LX186, LX188, GX325, GX335, GX345, and GX355Specs: Height: 4 1/2 "OD of Pulley: 6 "Pulley included