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Massey Harris & Massey Ferguson Tractors Discussion Forum
Show Parts for Model:

Serial Number Prefix

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fixt

02-11-2018 04:43:14




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My Massey 65 diesel has a 4 letter serial number prefix.

UNDM 704769. 1964 model from tractordata.com

Looking at my parts book doesn't seem to address this 4th letter. All the info I can find only addresses three letter prefix

What is this telling me?

From the the yellow underpaint it seems to have been decided it is a utility chassis. Is this a factor in the 4th letter?

My question is:

What does the UNDM mean?

Where do I find the transmission stamping?

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fixt

02-12-2018 09:08:56




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
Looks like Tony nailed it.

Tires are 13-24 just like he said.



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ptfarmer

02-11-2018 18:28:09




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
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Hit the wrong button (wish we could edit), with I just found with the N, an D, I have no idea what to think now.



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ptfarmer

02-11-2018 18:25:07




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
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What I found with the pre-fixes the N was for 4.192 Perkins diesel (BUT) I also found the D was for 4.203 Perkins diesel.



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fixt

02-11-2018 14:10:32




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
ptfarmer had one up on me. I couldn't find any info to conflict

Thank you Tony.

That makes all kind of sense. It never occurred to me.

U = Utility

ND = Diesel, Direct Injection (2 different letters for the engine section of the book combined into a 3rd letter prefix)

M = Dual-Reg. Transmission

I'll check the tires when it ain't falling a flood. Its a frog floating rain right now.

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Tony in Mass.

02-11-2018 11:27:50




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
clicked off too soon...

utility meaning wide front with 24 or 28 inch rear tires. and it was made in 1964



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Tony in Mass.

02-11-2018 11:24:56




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
According to my crystal ball,
U for utility

ND for direct injection diesel

M for PTO clutch



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ptfarmer

02-11-2018 10:26:14




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
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I keep finding conflicting information on the serial number prefix.

You may try AGCO Answers at 1-877-525-4384

or try gbdorning.com (used to be a MF industrial dealer, their parts dept maybe your best bet).



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Dieseltech

02-11-2018 09:42:38




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 Re: Serial Number Prefix in reply to fixt, 02-11-2018 04:43:14  
If I recall the "M" means two stage clutch fitted. The transmission numbers on MF tractors are stamped on top next to the safety start two wire switch.



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