Flat Idler Exmark 1-613098 Exmark 44", 48" and 52" Lazer Z HP 48" and 52" Turf Tracer hydro floating deck; Hustler 52", 54", 60" and 72" Z; 52", 60", 66" and 72" Super Z; 44" and 52" Mini Z and Super Mini Z; and 60" and 72" ATZ (MO)