ALLISON TT2421-1 Remote filter Numbers

Does anyone happen to know that the remote filter element and O ring part numbers are for a ALLISON TT2421-1 transmission in a 1988 Dynahoe 490 Backhoe. It's not a spin on but would
like to convert it if anyone has the numbers for that. I have the Dynahoe parts book but those numbers go no where. I wouldn't be surprised to find out that this is a very common remote filter assembly used in many different machines using this ALLISON TT2421-1 transmission. Allison doesn't go back that far anymore and the dealers are too young to remember or find any info on them. Even the rebuilders only handle the transmissions and nothing on the filters. The filter companies want a part number.
I really would like to have the filter and O ring ready to put in when I take the filter housing apart because previous experience has taught me never to do this because it may come out in pieces and no part numbers can be seen on the filter and I would be down for the count until I could cobble something together.
I would greatly appreciate any help that anyone could supply on this! Thanks!

Have you checked with Joseph Industries? There is a Dynahoe Owners private group on Facebook.

Tried Joseph Industries and the Dynahoe Group. They had nothing on my 1988 Dynahoe 490.

The Wix number is 51136 going by my books it is the canister filter . I will keep looking to see if I can come up with a spin on conversion. The 51136 comes with two gaskets for the filter cover plus one for the bolt , they do have other size gaskets listed but they have to be ordered separately. Hope this helps you out

Here is the product spec page from the Wix catalog for the 51136 jth suggested. It shows dimensions for the filter and the different gaskets, which should give you an idea if it is what you have and if one of the packaged gaskets is right or if it might be one of the ones you have to order.

Thank you for this filter number! I'll go out and measure the canister to see if it will fit. I imagine that this filter and gasket set will fit many applications.
The Dynahoe is new to me so tracking down parts has been a real treat!

This is perfect! I looked up the filter and found it on Napa for $16. Cheap enough. Not having taken it down, it's going to be interesting to see how the canister works.
The bottom of the canister has a large hex stamped into the bottom. It is part of the canister not an external nut. I thought it would be a place to grab the canister and twist it off with a long threaded rod inside that was part of the filter head. Now, since there is a small washer included it might be that there is a long bolt that is loose inside the filter that goes down the length of the canister. I'll have to check the top of the filter head to see if there is a hex for a bolt. There is very little room between the top of the filter and the floor above it. Might have to get a wrench on that hex and use a large wrench on the bottom to spin it off. It may just be a variation of a standard canister filter.
I was also surprised to see that the filter has a Nominal Micron rating of 32. I was expecting to see a filter in the 5 or 6 Micron rating. That may be for the newer transmissions with much finer tolerances for the servos and other parts inside.
It would be great if you have any info on a spin on filter kit. I came across a few that were in the $500 to $900 range and that was way to expensive for me considering that the oil/filter change is probably in the 500 to 800 hour range. I'll let you know how I make out. I hope to get some time over the 4th to take a look at it.

Well i messed up. The problem is, the part number plate was missing from the bottom of the transmission so I was going by a picture of the trans and thought that it was a TT2421-1. I found a scribbled not in the back of the parts manual that came with the Dynahoe and in reality it is a TT-2221-1 Transmission. I don't know is this changes anything but all I know now, after looking at the trans cartridge, a 4 inch diameter filter will not fit in this canister.
More like around a 3.50 inch might fit. I don't know what Dynahoe used for filters back then as the only numbers that I have from the parts book are: 91107920 for the element and 68109710 for the "O" ring. I have no luck with the Dynahoe group coming back with anything even though there are a few 490 owners in there and Joseph equipment doesn't have any cross reference info any longer. So I'm between a rock and a hard spot again with this filter. So, I don't know if there is a different filter size used between these two transmissions or not, I doubt it but at this point all I know is that the 4" filter will not fit.
Again, any help or insight would be truly appreciated short of pulling it apart to get a number. This would be the absolute last resort. Thanks, Dave

(quoted from post at 12:33:20 07/06/22)
Well i messed up. The problem is, the part number plate was missing from the bottom of the transmission so I was going by a picture of the trans and thought that it was a TT2421-1. I found a scribbled not in the back of the parts manual that came with the Dynahoe and in reality it is a TT-2221-1 Transmission. I don't know is this changes anything but all I know now, after looking at the trans cartridge, a 4 inch diameter filter will not fit in this canister.
More like around a 3.50 inch might fit. I don't know what Dynahoe used for filters back then as the only numbers that I have from the parts book are: 91107920 for the element and 68109710 for the "O" ring. I have no luck with the Dynahoe group coming back with anything even though there are a few 490 owners in there and Joseph equipment doesn't have any cross reference info any longer. So I'm between a rock and a hard spot again with this filter. So, I don't know if there is a different filter size used between these two transmissions or not, I doubt it but at this point all I know is that the 4" filter will not fit.
Again, any help or insight would be truly appreciated short of pulling it apart to get a number. This would be the absolute last resort. Thanks, Dave

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WIX 51143 shows as used in some Dynahoe models. I would be pulling it out and checking it. It appears you have been chasing this for months and several forums. As far as it breaking up, you would be better off to remove the remains and get them out of the system, then to leave it there further contaminating the system.

Things have been going crazy as of late and have finally had some time to get back to the Dynahoe Remote Transmission Filter research. I believe that Jim.ME was spot on with the Wix Filter #51143, which crosses to a Baldwin P18-HD, and a Donaldson P550141. In digging through all of the filter sites that I could find, I came across a site: https://www.filterspro.com/search.asp?keyword=40209 that also listed in the Baldwin P18-HD search, an Allison Transmission Filter #5574540, and a Dynahoe Filter #40209P. Now all of these filters appear to measure up the same within within a fraction. They are all in the Range of
OD: 3.58", ID:1.26" Both Ends, and Length of 5.75" and a Micron Rating of around 25. This varies from one to another. Since the 3.5" OD and the 5.75" come close to my guestimate of measuring the outside of the canister I'm ordering the Baldwin P18-HD filter. Mainly because all the other filters for the machine are Baldwins. One stop shopping syndrome. I was thinking of going to a Spin On filter for this but since it will only need to be changed once a year whether it needs it or not, and probably only change the Dexron III fluid every other year depending on oil analysis and another filter change
it really doesn't see worthwhile going in and changing the filter set up unless there is a break in one of the lines or it needs to come out to remove something else. Just need to wait for the filter come and get some time to put it in. Hopefully it will fit! I'll let you all you 490 owners know how it goes. Thanks Jim.ME for all your help and patience!

Stop the presses, I finally got in touch with someone that has a 1987 Dynahoe 490 and is looking for the number of the filter that he used. If he remembers correctly it was a Wix 51760. He's double checking it and will get back to me soon. So for now, disregard the filter numbers stated above as they are incorrect. I will verify the correct number as soon as I can.

Sir

I have 1987 190-4 and looking to do transmission filter.
Did you verify the wix 51760 is correct?

Thank you
Paul

Paul Livore said:

Sir

I have 1987 190-4 and looking to do transmission filter.
Did you verify the wix 51760 is correct?

Thank you
Paul

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Welcome to the forums.

You may not get an answer, Log Dog's profile shows his last log in was July 28, 2022, six days after his last post in this thread. He shows up searching this on several other sites. He did not provide any feedback on any of those sites as to what filter fit, beyond that the 51143 OD was too large.

I am going to suggest you "bite the bullet" and drop the cannister and not waste more time chasing numbers that might or might not fit. Take the filter to a parts store and match it. You have some Wix numbers to work with for starters in this thread. There is also a chance that a recognizable brand and number will be on the filter element. Dynahoes were component machines put together from off the shelf parts, they may have used several different housings in you case and some numbers may have been lost over the years. It has an Allison transmission. Wix shows the 51136 as used in some Dynahoe applications, the 51760 does not show as used in Dynahoe applications, not that that is an absolute fact.