kpjcae with the 520-H

[gwest_ca-(File Mod) 11,753]

Go to

https://lookup3.toro.com/partdex/index.cfm?xCaller=Toro

and type in 520-H. They will all come up with what Toro is looking for a serial number. The word none is used for a serial number for 1990 and older product.

Some of the 520 serial numbers are 1 digit short on the tractor decals so add a zero at Toro if it does not work.

Garry