Blade Drive Belt replaces Exmark & Husqvarna OEM#'s 1-633366, 1633366, 633366, 1633366SL, 601000921. Sunbelt# B158300, B1633366, 7-078143; Rotary# 9862; Oregon# 75-960; Stens# 265-135. Specs: 128.75" length x 5/8" width x 0.481" thickness. Fits some Lazer Z - 52" Deck.
Refer to your manual to match by original belt OEM#.