I was mowing last week and my 54" Husqvarna mower deck suddenly stopped moving. The engine is still running, the blades are spinning but not moving. If I stopped for a minute, he would love again for a while. I was hoping it was the drive belt and nothing worse. Ordered this belt, received it overnight. Ideal length. Relatively easy replacement - remove mower deck, disconnect connection from PTO, disconnect PTO harness, remove belts from driven pulleys, then front pulley, then rear pulley (note fan blades). Tighten the belt on the PTO shaft, pull it out and replace it with a new belt. Fits perfectly and the lawnmower works great again. Update in a few months so you know how things are holding up.