Combines JD combine models Help

9500, 9510, 9550cws, 9560cws, 9560sts - class 5 9600, 9610, 9650cws, 9650sts, 9660cws, 9660sts - class 6 9750sts, 9760sts - class 7 9860sts - class 8 Now obviously there are some variations within the classes, as no doubt the 9560sts should walk all over an original 9500, but this should give you a bit of an idea as to what class the various machines are.

Whoops almost forgot the CTS CTS,CTSII,9650CTS,9660CTS are class 6 machines. (Obviously debatable, CTS is underpowered, later machines may be pushing class 7 status)

Thanks for the explanation..but I still find it a bit confusing...for example what is the difference between a 9750sts and a 9760sts IJ..you say they are both class 7 machines

About like your R72 and R75 Gleaner. One is newer than the other. Ilnh

ok..makes sense but if you go on the JD website it appears that you can still buy either a 50 series or a 60 series. is that the case IJ

My guess would be they are trying to get rid of old stock, just like cars or any other model change.

It's like this: The first digit is always a 9 as since 1989 they have been 9000 series Maximizer combines. The second digit refers to its size. For example a 9500, 9510, 9550, 9560 are all class 5 machines. The last two digits refer to the age of the unit. When they first came out, the were the 00. After came the 10 series, then 50, now 60. The next generation, unless they change the scheme, will be 70 series with models like the 9570, 9670, 9770, 9870 etc. The interesting one is the CTS. They did not follow this logic as they were only available in one size. When they upgraded the walker machine to 9610, they renamed the CTS a CTSII, kind of like the Titan II heritage. With the introduction of the 50 series they were adding the STS and they knew there would be confusion. They decided to clean this up. Since the CTSII was closest to a class 6 machine, they gave the unit a 9 for Maximizer, a 6 for class 6 and a 50 series for the fact that it was in line with the rest of the 50 series group. They then had to add the CTS tag on to the end to indicate what type of combine it is as well. The CTSII therefore became the 9650 CTS. They did the same for the STS. Since the STS came in two sizes, there was a class 6 9650STS and a 9750STS. i.e. 9 = Maximizer, 6 = class 6, 50 = 50 series, and CTS = cylinder tine seperator or 9 = Maximizer, 7 = class 7, 60 = 60 series, STS = single tine seperator. Clear as mudIJ

Thanks guys for clearing this up for me...what was confusing me was the fact that Deere is still selling both the older 50 series and the new 60 series.