Ryobi Zero Turn Mower Seat ZT480 ex/RY48ZTR100. Seat is unused (used mower platform for a project) so seat was just stored. Note there is a scratch on the right side of seat (see 8th photo). Note the seat is from a. Ryobi Zero Turn Mower ZT480 ex/RY48ZTR100. The mower was bought in July 2021. Please be sure it is the correct seat for your mower.