This document lists the manufacture numbers of the Simplicity Power Max series and associated 620 & 720 Allis Chalmers series tractors from 1972-1982? .
Note: This document is a work in progress. Feel free to submit corrections or contributions to the Power Max Discussion area. The goal is to detail the differences between the various models and make it easier to get the information on your particular tractor model. Belts, manuals, brochures to collect, etc. Any help would be appreciated, thanks!
Manufacture Number List of Power Max/AC 616,620 720 Series: 990705 990953 990954 1690072 1690073 1690230 1690231 1690283 1690285 1690288 2020185 2020303 2020304
Here are links to the manuals on the Simplicity Site for these tractors: