Flat Idler Pulley replaces Toro/Exmark OEM#'s 1-613098, 613098, 1613098. Rotary# 10397, 13-10397 similar to Stens 280-874, 280874. Specs: 5-1/2" OD, 1-1/8" height
Fits some Turf Tracer Hydro with 48" and 52" floating deck and some Lazer Z HP 44", 48" 52"decks.
Refer to your mower parts manual to match by pulley OEM#.