and decoding serial numbers.
different Model/Serial number tags exist on the 10,000 series machines.
a fourth set of numbers stamped into the frame.
The "tractor body" tag, containing the model and serial number of the
and this will also be the model number of the sno-thro as a complete
unit, if it was originally sold as a complete sno-thro. (as opposed to
being sold as just the seperate tractor unit)
at the left-rear of the machine, behind the left wheel.
my 1971, the Tractor Body tag says:
No. 0 (serial numbner zero, no other numbers after the zero)
is up with "serial number zero?"
first I didnt know..but I figured it out! (well..sort-of)
wrote to Ariens, and they quickly replied with an answer..
is also a model and
number stamped into the machine:
Stamped into the metal of the tractor body, near the tractor tag, are a
model and serial number. You can see the numbers stamped into the frame
in the photo above.
contains the model and serial number of my machine as a whole, which in
my case is:
did confirm that the number stamped into the frame, model and serial
the model and serial number that should be used for the machine as a
the model and serial number on the sno-thro housing..that is the
why isnt the serial number stamped into the frame
also on the tag? why exactly does the tractor tag say "serial
zero? I dont know..and Ariens didnt really have an answer either..one
reason might be that perhaps Ariens, as part of the sno-thro production
procedure, had a bunch of tractor bodies in line, waiting to be
into Sno-thro's, and they all wore the tractor tag with the model
910962, but with serial number zero on that tag, because the final
number wouldnt be known until the complete sno-thro unit was
when its all assembled into a complete sno-thro, the unit recieved its
final model and serial number, which is the number stamped into the
sense! but thats just a guess!
The Tecumseh engine tag, this tag relates to the model and serial
of the engine only. located on the left rear corner of the engine. Here
is my tag:
Tecumseh engine number is H70-130067A, Serial No. 1270D
The serial number on Tecumseh engines (not the model number)
can be used to identify
the year of manufacture. The first digit in the serial number indicates
the year, and the last 3 digits are the day of the year..so my engine
serial number, 1270D, indicates the 270th day of 1971. you have to
guess the decade! technically 1270 could mean, 1961, 1971, or 1981..
but its usually easy to figure out the decade, just based on the type
of machine the engine is attached to, and the type of engine itself. So
my engine is clearly from 1971, which matches the 1971 Ariens model
the year of the engine matches the year of your sno-thro, you can be
assured that the engine is original. But considering the age and long
life of these machines,
not unusual to find a replaced engine.. if your engine year does not
the year of the sno-thro, then you probably have a replacement engine.
Tecumseh model numbers matching Ariens model numbers can be found on
of the manuals linked above.
The Sno-Thro attachment number.
is located on the Sno-Thro body, on the right side just behind the
attachment numbers are:
numbers apply to the attachment only, not the machine as a whole.
"tractor bodies" could be used with several different attachments on
front, not just the sno-thro attachment..some tractor bodies became
lawn vacuums, tillers, etc.
could also buy the one tractor body and swap attachments..use the one
as a sno-thro in the winter, and a lawn mower in the summer.. in that
might the tractor body tag contain both the model and serial number?
than "serial number zero"?
the tractor was sold as it's own individual unit? perhaps..
armed with your numbers, check out the manuals to decode the year your
machine was built.
first I had some difficulity determining the exact year of my machine.
based on the various numbers, it could have been 1970, 1971 or 1972!
47 of the 10,000 series manual says tractor body number 910962 was used
in 1970, 1971 and 1972.
page 2 of the same manual, it says my tractor body model number,
and Sno-Thro attachment number, 910995, matches 1971-1972. (so that
that narrows it down to 1971 or 1972, based on the Tractor body and
which year is it then?
on the 1971 and 1972 manuals, I am concluding my machine is a
numbers show up on the 1971 manual, but model number 910962 is not
listed in the 1972 manual.
be wrong though! but for now, all evidence points to 1971 as the most
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Ariens Sno-Thros, 1960 - 1964
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