Belt has other fitments on other machines. It is new, never been used 72" Exmark Lazer Z deck belt# 1-643052 (0515-102) (if you're reading this, it's still for sale $200 on Amazon) - make an offer!
Genuine Exmark Toro Factory Part Number 1-643052-SL
Replacement for Previous Part Number 1-643052
Compatible with: Exmark 72-Inch Deck Lazer Z S-Series LZS902DKU725A1, Lazer Z DS-Series LZD25KD72
fits Exmark Lazer Z with 72" mower deck. Similar to Oregon# 75-967, 75967, Rotary # 10041 and Stens # 265-138, 265138.
Compatible with: Exmark 72-Inch Deck Lazer Z XS LXS25KD725, LXS29LKA725, LXS35BV725, LXSLKA725, LXSKD725, LZ31BV724, Lazer Z XP LZ27DD724, LZ31DG724
Compatible with: Exmark 72-Inch Deck Lazer Z AC LZ30KC725, LZ27KC724, LZ26KC724, LZ31BV725, Lazer Z AS LAS28KA724, LAS28KA724N, Lazer Z LC LZ27LKA724