Harmony 2013 Belt Issues

[Lawnmower collector]

I was given a Harmony 2013, I got it running and mowed the yard today. All was good until I was almost done I disengaged the PTO and the belt threw all the tension around the engine pulley and the belt fell through the peg that is supposed to hold it on. I put it back on and it did it again. I'm thinking just adjust the belt tensioner and replace the belt since it is dry rotted. I have looked around on the internet and can't find a part number for the Deck Belt. Does anyone know the part number for the deck belt?
Thanks and advice will be greatly appreciated.

 

[MowLife]

If you post the mowers model number someone should be able to find what you need.

 

[Lawnmower collector]

What exactly do you mean by model numbers? I have the serial number I thought it was just a 5-Speed Harmony 2013. The Serial Number is MZBF 6014475

 

[mechanic mark]

https://www.hondapartsnation.com/oemparts/l/hpe/505ce81df870022d24be0400/h2013-sac-parts

https://www.google.com/search?q=dec...ome..69i57.74007j0j4&sourceid=chrome&ie=UTF-8

 

[Lawnmower collector]

Mechanic Mark, Thanks found just what I needed.