MF65 parts tractor compatibility

I have a MF65 tractor serial 664937 with a G176 engine serial 19350. It looks like it was manufactured sometime in mid '59.

I'm looking at buying another MF65 tractor serial 679138 with another G176, engine serial 21851. This one appears to have been manufactured toward the end of '60.

Both are power steering models. The '60 is higher, like a row crop model or something.

My question is, how many parts will or will not interchange? I would think most of them should but I just don't know.

(quoted from post at 19:19:14 09/25/21) I have a MF65 tractor serial 664937 with a G176 engine serial 19350. It looks like it was manufactured sometime in mid '59.

I'm looking at buying another MF65 tractor serial 679138 with another G176, engine serial 21851. This one appears to have been manufactured toward the end of '60.

Both are power steering models. The '60 is higher, like a row crop model or something.

My question is, how many parts will or will not interchange? I would think most of them should but I just don't know.

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Likely many will, just as likely some won't. Could have different clutches or transmissions for a couple things. If one is utility/standard and one is row crop you have already seen some differences in parts. You can study the on line parts book at: https://apb.agcocorp.com/ and see the variations offered.

Will that agco site tell me what transmission, hydraulic and differential differences there are?

They don't identify each tractor by model. They show the optional equipment used. They may show a serial number break if something changes during a model run. You have to figure out what each tractor has for say the transmission and then compare the transmission parts pages for both transmissions to see what parts are common to both.

This post was edited by Jim.ME on 09/29/2021 at 06:27 pm.

I see some differences in the Agco parts book for a regular, shuttle and multi power transmissions what does that mean? I think mine is multi power but I'm not sure. how do I tell what mine is and the one I'm thinking about getting?

This post was edited by KLane1986 on 09/29/2021 at 06:31 pm.

(quoted from post at 21:29:43 09/29/21) I see some differences in the Agco parts book for a regular, shuttle and multi power transmissions what does that mean? I think mine is multi power but I'm not sure. how do I tell what mine is and the one I'm thinking about getting?

This post was edited by KLane1986 on 09/29/2021 at 06:31 pm.

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My apologies in advance if this sounds harsh, but you are going to have a bit of a hard time checking things out if you don't even know for certain if your own tractor has a multi-power transmission. Get an Operator's manual for your tractor and study it so you know how your own tractor is equipped. The manual will generally give operating instructions for the other options used on a given model. The only way you will tell how a given tractor is equipped is to physically look at it and study it, even then there may be internal differences you can't see unless you open it up (like pulling the clutch inspection plate to see the clutch).

The regular transmission is just the main transmission and Hi-Lo range transmission (two sticks), the multi-power is an addition to the regular transmission and is operated with a small lever located on the dash area. It is a hydraulic range change that gives a two range, no clutching, shift on the go option. The shuttle (forward/reverse) adds a third lever to control just the directional shifts.

These are the very basic descriptions of the transmissions. Then they may have used different clutches, PTOs, front axles, wheels, etc. as they built different 65s. If you post some pictures there may be somethings that people can identify to help you. Have you talked to the owner and asked him things like: does it have multi-power? Does it have a shuttle? Does it have a single or two stage clutch?

I bought an operators manual for a gas MF65 off of ebay but if there are so many variations of options on these things, how will that help to determine my specific tractor?

It does have the hi-s-lo selector and the regular 3 speed shifter. There are no other controls on the dash or anything. the pto selector has engine, neutral and ground. don't know if that has anything to do with the transmission or not though.

When I am operating a brush hog I can depress the clutch about half way to shift and the pto keeps running. Is that 2 stage? The parts book says there is a single clutch and dual clutch. Is this referring to stages or are there actually 2 clutch pedals on some models?

The other tractor appears to be mechanically identical to mine as far as the powertrain. It is the high clearance model and mine is low clearance.

The guy I got mine from doesn't know much more about it than I do or much more about tractors. And the guy he got it from, doctored up the oil to hide bad oil pressure. I should have known better than to take cold oil pressure as good.

The guy that has the parts tractor doesn't know much about this tractor. Neither one of them have had them very long.

This post was edited by KLane1986 on 09/30/2021 at 06:07 am.

(quoted from post at 08:53:29 09/30/21)
I bought an operators manual for a gas MF65 off of ebay but if there are so many variations of options on these things, how will that help to determine my specific tractor?

It does have the hi-s-lo selector and the regular 3 speed shifter. There are no other controls on the dash or anything. the pto selector has engine, neutral and ground. don't know if that has anything to do with the transmission or not though.

When I am operating a brush hog I can depress the clutch about half way to shift and the pto keeps running. Is that 2 stage? The parts book says there is a single clutch and dual clutch. Is this referring to stages or are there actually 2 clutch pedals on some models?

The guy I got mine from doesn't know much more about it than I do or much more about tractors. And the guy he got it from, doctored up the oil to hide bad oil pressure. I should have known better than to take cold oil pressure as good.

The guy that has the parts tractor doesn't know much about this tractor. Neither one of them have had them very long.

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There is no magic "this is how this one is equipped" answer anyone here can give you without actually seeing and checking it out. You have to study the manual and match up things you see or don't see on the tractors. They didn't print a specific manual for each individual tractor with just its equipment.

Your description of your transmission sounds like the regular one, no multi-power or shuttle.

The PTO is a standard one. If the selector lever is in engine, the PTO will be engine driven through the transmission (for most applications). If the selector lever is in ground, it is driven by the transmission out put so it relates to the travel speed of the tractor, not the engine RPM. This was used for reduced PTO speed for some equipment, like maybe a manure spreader or rake.

If you can push the clutch pedal half way down and stop/shift the transmission and the PTO keeps running (engine) you have a dual (aka two stage) clutch.

This post was edited by Jim.ME on 09/30/2021 at 03:34 pm.

Pics are of a Dual Stage Clutch.... I recently installed...
NO Multi Power......
Bob..

Jim, I'm following this thread because I'm looking at a non-running MH 50 that may or may not have a dual-stage clutch. It looks like the clutches themselves would be easy to distinguish, with a dual stage having the cast teeth around the circumference. Is there an inspection place on a MH 50 where I can see that difference fairly easily? steve

(quoted from post at 16:36:47 10/06/21) Jim, I'm following this thread because I'm looking at a non-running MH 50 that may or may not have a dual-stage clutch. It looks like the clutches themselves would be easy to distinguish, with a dual stage having the cast teeth around the circumference. Is there an inspection place on a MH 50 where I can see that difference fairly easily? steve

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I don't have one to actually look at, but will say the on-line parts book shows an inspection plate.



This post was edited by Jim.ME on 10/06/2021 at 02:42 pm.