JimV 0 Posted September 26, 2000 The 620 has black trim and decals. The 720 has white trim decals. Also on the "dash" it should say 620 or 720. Also I find the 620 leaks and the 720 does not (ha). 1. The URL link below goes to a 620. 2. The optional image link is of a slick 720 in Ohio (JeffG). Steve[A href='http://www.simpletractors.com/models/600_series/ac_620.htm'][img src='http://www.simpletractors.com/images/gallery_images/jg_014_13a_1.jpg'][/a] Share this post Link to post Share on other sites
Guest Posted September 27, 2000 Thankyou for the reply, I found out I am AC stupid - HA HA. By reading the AC history on the internet I have a 4040 so any information on a 4040, I would greatly appreciate. Thankyou, Jim Share this post Link to post Share on other sites
Guest Posted September 27, 2000 Just bought a 4040 with no I.D. plates. I need some help in find some manuals . Any help would be appreciated. Thankyou Share this post Link to post Share on other sites
powermax_paul 1 Posted September 28, 2000 To the best of my knowledge, the 16.5HP AC616 is equivalent to Simplicity 4040, the 19.5HP AC620 is equivalent to the Simplicity 4041, and the 19.5HP AC720 is equivalent to the Simplicity 9020. The AC616/S4040 have Onan CCKA 16.5HP motors, and the AC620,AC720,Simplicity 4041 & 9020's all have Onan CCKB 19.5 motors. All these tractors use like attachments. Cat"0" 3ph, front hydraulics, & 2000 RPM rear pto were options on AC616/620 & Simplicity 4040/4041 but Standard Equipment on AC720 & Simplicity 9020. Some tractors may have been upgraded over the years. I have seen a Simplicity 4040 with a Onan CCKB 19.5HP, but it was apparently a replacement engine. They are interchangeable. Share this post Link to post Share on other sites
Guest Posted May 18, 2001 I have a 4040 for sale on ebay #1237823600 Share this post Link to post Share on other sites