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Trying To Figure Out The Year My D4-10's Were Made


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#1 sacsr OFFLINE  

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Posted February 19, 2012 - 09:31 PM

I have tried to find a site that showed Tecumseh production info....but have not found the "right one"....maybe some one can help......

Older rougher looking D4-10 Serial Number 10230 HH100 1151478 serial 9134 08049

Repainted D4-10 Serial Number 9342 Wisconsin TRA-10D 4476189 294765 - decal pretty faded.

Any help would be appreciated.

#2 sacsr OFFLINE  

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Posted February 19, 2012 - 09:50 PM

Just saw the wisconsin motor thread......repainted D4-10 has a 1967 January motor in it.........BH serial number 9342.....


Daniel do you know the years the D4-10 were made??

Edited by sacsr, February 19, 2012 - 09:51 PM.


#3 olcowhand ONLINE  

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Posted February 19, 2012 - 10:07 PM

No records at all of production dates for the Bush Hog GT's. But I would guess both yours as 68 models based on the serial number in relation to other tractors.
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#4 sacsr OFFLINE  

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Posted February 19, 2012 - 10:17 PM

Thanks Daniel,

I will post a picture of the serial plate of the rusty one.....that one has a different looking steering wheel, and the serial plate is totally different from the repainted one.

Attached Thumbnails

  • bush hog close up serial number tag.JPG
  • bush hog old one.JPG


#5 olcowhand ONLINE  

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Posted February 19, 2012 - 10:20 PM

The steering wheel is like that on my (nearest I can tell) 1968 V4-6 and my 69? & 70? JBI's. I think they started using those ID plates in 68 also, but may have used the old style & new style ID plates the same year. All just educated estimates as to years.
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#6 sacsr OFFLINE  

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Posted February 19, 2012 - 10:24 PM

Is there a running spread sheet on serial numbers for each model??? If not, it would be neat to have something like that available.....maybe show what motor was in it as well. A central collection point for this data would be nice.

#7 olcowhand ONLINE  

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Posted February 19, 2012 - 10:29 PM

Is there a running spread sheet on serial numbers for each model??? If not, it would be neat to have something like that available.....maybe show what motor was in it as well. A central collection point for this data would be nice.


No collection of numbers as I know of. If there is a former Bush Hog employee that has any data sheets, they have never told anyone. All we have available is engine build date to go by. There have been a few people who had the original purchase papers, and they were what helped me dial in the 67 models of D4-10 that I own, going by the close numbers.
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#8 olcowhand ONLINE  

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Posted February 19, 2012 - 10:30 PM

Bush Hog destroyed all the paperwork when they ceased production. I heard they built a huge bonfire & tossed all the paperwork into it!

#9 sacsr OFFLINE  

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Posted February 20, 2012 - 07:25 PM

I finally got to look at them in the daylight and it was not raining!! There are alot of differences in these two GT's......I ran out of time today and will not get to look closer for a couple of days.....but when I do I am going to document the differences.....cut outs in the frame....different access to the bell housing......tank straps are different.....rear sleeve hitch part that the implement fits on are different -they look the same....but one has 2 bolts to tighten up and the other has 1 bolt......be interesting to see if some of this was bushhog and if some of this was PO....I know the cut out under the starter/generator on the tecumseh is a PO cut out.....too ragged.....but the other side there is a cut out for the tecumseh to fit into the frame and not rub on it.....sorry no pictures now but will get it done.

#10 olcowhand ONLINE  

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Posted February 20, 2012 - 07:27 PM

Be interesting to compare differences. Looking forward to the close-up shots of those areas.

#11 sacsr OFFLINE  

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Posted February 22, 2012 - 10:44 AM

Well got a little info on bh serial numbers.

Owner says it was bought in 1973 in Altoona -was a fresh shipment

Serial number 10295

Has a 10hp Tecumseh

#12 mjodrey OFFLINE  

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Posted February 22, 2012 - 11:15 AM

It's a sure thing, I can't help you on this.

#13 olcowhand ONLINE  

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Posted February 22, 2012 - 03:19 PM

Scott, your Tecumseh with the "9134" makes that engine built on the 134th day of 1969. Likely the tractor was built in 1969.
As to the other Bush Hog that fella owns, I believe Bush Hog ceased production in 71 or 72, but not sure about that. It's serial number on the tractor itself indicates the same, 70 to 71 model in relation to other known serial number years. If he got it in 73, I can almost say for sure it was not a fresh built tractor.
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#14 sacsr OFFLINE  

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Posted February 22, 2012 - 06:47 PM

Believe it or not, I have another d4-10 in my sights.....more of a parts gt.....but has some parts I would like to have.
Also going to get another mower deck with it.....

This D4-10 has the Serial 10295 the Tecumseh Serial # is 9155 08142 ......so 69 made on day 155 right?? is the 08142 the rest of the serial number?? the owner says he bought it in 73.....maybe it had been at the dealers for a while??

I have taken some pictures of the differences between my two d4-10....will post and be interested in what you have seen.

#15 olcowhand ONLINE  

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Posted February 22, 2012 - 07:59 PM

Believe it or not, I have another d4-10 in my sights.....more of a parts gt.....but has some parts I would like to have.
Also going to get another mower deck with it.....


Man, you're on a roll Scott! But a parts tractor is almost a must!

This D4-10 has the Serial 10295 the Tecumseh Serial # is 9155 08142 ......so 69 made on day 155 right?? is the 08142 the rest of the serial number?? the owner says he bought it in 73.....maybe it had been at the dealers for a while??


Yes, the first part is the DOM, the rest is the actual serial number. These engines were built specifically for Bush Hog with the extended crankshaft for the pto clutch, so not likely the engines were stockpiled, but more likely put right on a tractor within weeks or a couple months. So likely it was in a crate for a while before he bought it.


I have taken some pictures of the differences between my two d4-10....will post and be interested in what you have seen.


Will be looking for the pics.




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