This heavy-duty pulley replaces To ro/Ex mark part numbers 1-603805, 99-4638, E603805, 994638. Compatible with 52" Turf Ranger Front Mount Mowers: FMD52, FMD522, FMD523, FMD524, FMD60, FMD602, FMD603, FMD604; FR524, FR604, FR724 Front Runner Decks This 1-603805 pulley is compatible with To ro Z Master SFS Side Discharge Mowers Z200, Z252, Z252l, Z253, Z255, Z256, Z257, Z283l, Z286e, Z287l, Z288e, Z500, Z528, Z550, Z553, Z555, Z557, Z560, Z587l, Z588e, Z590-d, Z597-d This 1-603805 pulley is compatible with Ex mark Lazer As Mowers LAS25KC604, LAS25KC604N, LAS28KA524; Ex mark Lazer Z As Mowers LAS23KC524, LAS25KC604, LAS25KC604B; Ex mark Lazer Z Xs Mowers LXS25KD605, LXS25KD605XS, LXS25KD665, etc. Please check the more detailed models in the description [Precise Dimensions] Measures 0.68" ID, 4.98" OD, 1.18" Height (please verify images/specs for your model). Kit includes both the pulley and the essential idler arm assembly [Optimized Performance] Smooth & Reliable: Features a precision-machined groove for superior belt grip, minimizing slippage. Delivers efficient power transmission and reduces maintenance hassle for peak mower operation

1-603805 Idler Pulley Compatible with To ro Z/Ex mark Lazer Z Mowers

Specification: 

Height: 1.18"

ID: 0.68"

OD: 4.98"

Replace Parts Number:

Replaces 1-603805, 99-4638, 994638, E603805

Compatible Models：

Compatible with 52" Turf Ranger Front Mount Mowers: FMD52 FMD522 FMD523 FMD524 FMD60 FMD602 FMD603 FMD604; FR524 FR604 FR724 Front Runner Decks

Compatible with To ro Z Master SFS Side Discharge Mowers: Z200 Z252 Z252l Z253 Z255 Z256 Z257 Z283l Z286e Z287l Z288e Z500 Z528 Z550 Z553 Z555 Z557 Z560 Z587l Z588e Z590-d Z597-d

Compatible with Ex mark Lazer Z Mowers: LZ18KC523 LZ20KC524 LZ20KC524AS LZ-22KC52 LZ22KC523 LZ-22KC60 LZ22KC603 LZ22KC604 

Compatible with Ex mark Lazer Z AS Mowers: LAS23KC524 LAS25KC604 LAS25KC604B LAS28KA524 LAS28KA604 LAS28KA724 LAS28KA724B

Compatible with Ex mark Lazer AS Mowers: LZ22LKA523 LZ22LKA604 LZ23KA604 LZ23KC523 LZ-25KC52 LZ-25KC60 LAS25KC604 LAS25KC604N LAS28KA524 LAS28KA524R LAS28KA604 LAS28KA724 LAS28KA724N

Compatible with Ex mark Lazer Z XS Mowers: LXS25KD605 LXS25KD605XS LXS25KD665 LXS25KD665XS LXS25KD725 LXS25KD725XS LXS29KD605 LXS29KD665 LXS29KD725 LXSLKA725 LXS29LKA605 LXS29LKA665 LXS29LKA725 LXS31BV605 LXS31BV665 LXS35BV605 LXS35BV665 LXS35BV725 LXSKD725 LXSLKA605 LXSLKA665