Fits: Exmark 52", 60" and 72" Lazer Z Triton decks, Serial No. 600,000 and higher; Turf Tracer hydro with floating decks, Serial No. 190,000 and higher; 52", 60" and 72" Lazer Z deck group, Serial No. 102,000-370,000 Toro Z 250's Z Master 742XX Series, with 52", 62" and 72" decks, 1999-2021; 74260 Z 597 with 60" and 72" decks; Z 500's Z Master, with 60" and 72" decks, 2004 and newer