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Hydro Harry's Cub Cadet Series Description

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Originally posted by Harry Bursell aka HydroHarry on October 9, 2020.

The very first Cub Cadet didn't have a model number. It was known as a "Cub Cadet" and was a gear drive with a 7hp Kohler engine. Over time and because it didn't have a model number it became known as the "Original" also commonly referred to as an "O".

After the Original, IH produced the model 70 and model 100. Both were gear drive models
70 is 7hp Kohler gear drive.
100 is 10hp Kohler gear drive.
(Note the engine hp associated with the model numbers - 7hp model 70 and 10hp model 100).

After the 70 and 100 IH produced the models 71, 102, 122 and 123.
71 is 7hp Kohler gear drive.
102 is 10hp Kohler gear drive
122 is 12hp Kohler gear drive
123 is 12hp Kohler with the very first Hydrostatic drive.

As IH introduced new models they maintained the model numbering nomenclature and sequencing. Model numbers with 2 digits were gear drive with 7hp engines. Model numbers with 3 digits were 10hp or greater. The first 2 digits of a 3 digit model identify the engine hp. The 3rd digit of a 3 digit model identifies whether it's gear drive or hydrostatic. An even number 3rd digit is a gear drive and an odd number 3rd digit is a hydrostatic drive.

The next models produced were the 72, 104, 105, 124 and 125. You should be able to figure out the engine hp and drive for these but here goes.
72 is 7hp Kohler gear drive
104 is 10hp Kohler gear drive
105 is 10hp Kohler hydro drive
124 is 12hp Kohler gear drive
125 is 12hp Kohler hydro drive.

For our Forum discussions about "all the models in a series" we started to use an "x" combined with the 3 digit model numbers. 1x2/3 series refers to the 71, 102, 122 and 123. 1x4/5 series refers to the 72, 104, 105, 124 and 125.

So, the next models introduced by IH were
73 is 7hp Kohler gear drive (this was the last 7hp model)
106 is 10hp Kohler gear drive
107 is 10hp Kohler hydro drive
126 is 12hp Kohler gear drive
127 is 12hp Kohler hydro drive
147 is 14hp Kohler hydro drive (this was the first 14hp model)

All the models listed above are considered "Narrow" frame tractors. The frame for the 147 had a cut and bump-out in the side so the 14hp engine would fit.

After this point and to accommodate the bigger hp engines (14hp and 16hp) on the next series of tractors IH modified (widened) the frame in the area of the engine and used it for all the models in the series. We refer to this series as the 1x8/9 series and the start of the "Wide Frame" series:
86 is 8hp Kohler gear drive (this was the first 8hp model)
108 is 10hp Kohler gear drive
109 is 10hp Kohler hydro drive
128 is 12hp Kohler gear drive
129 is 12hp Kohler hydro drive
149 is 14hp Kohler hydro drive
169 is 16hp Kohler hydro drive (this was the first 16hp model)

You may have noticed IH ran out of numbers for 3 digit model numbers since they used the number 9. So, IH began using 4 digits for tractors with 10hp or more, and 3 digits for tractors with 8hp, for the next series. This series also was the first time IH fully enclosed the engines and the series became known as the "Quiet Series" or Quiet Line Series.
800 is 8hp Kohler gear drive
1000 is 10hp Kohler gear drive
1200 is 12hp Kohler gear drive
1250 is 12hp Kohler hydro drive
1450 is 14hp Kohler hydro drive
1650 is 16hp Kohler hydro drive
(Note there was no longer a 10hp hydrostatic drive model. There was an odd ball sort of economy Model 1100 that had a 11hp Briggs and ScrapIron engine with no side panels so it was not part of the Quiet Line Series, and it also had a different gear drive tranny/rearend from the infamous IH built gear drive).

After this IH introduced the famous 82 series. I've got a headache now myself and really can't get into explaining this series which includes the 482, 582, 582 Special, 682 and 782. I will say IH modified (spread) the frame for all the models used in this series to accommodate the 17hp Kohler twin cylinder engine used in the model 682 and 782. We cannot refer to this series using an "x" in the numbers so we commonly refer to this series either as the "Spread" frame or 82 series.

In the year of our Lord 1981, IH sold Cub Cadet off to MTD, which they maintained as a separate wholely owned subsidiary known as Cub Cadet Corporation (we refer to as CCC). CCC has mixed up the nomenclature for model numbers so there is really easy explanation. That's my story and I'm sticking to it, and getting some aspirin.
 
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