401C

(quoted from post at 20:02:02 06/03/22) Thanks for the engine info, now I can purchase the oil filter, diesel fuel filter, hydrolic filter, air filter etc. I already removed the injection pump, and will be disassembling it. I would like to simply exchange it for a rebuilt unit, but they are very expensive..

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(quoted from post at 17:37:44 06/03/22)

(quoted from post at 20:02:02 06/03/22) Thanks for the engine info, now I can purchase the oil filter, diesel fuel filter, hydrolic filter, air filter etc. I already removed the injection pump, and will be disassembling it. I would like to simply exchange it for a rebuilt unit, but they are very expensive..

Click to expand...

You may want to consider sending your injection pump to one of the fellows that post on this site (Dieseltech or Al "the pumpman" Baker). One mistake can cost you way more than you save, and they are equipped to properly test and calibrate it. If you decide to do it yourself you need to get the proper manual for the pump, if you don't have it, before starting.

As for the serial number 305275, I would say it is 1978-1979 vintage. Lists of the industrial serial numbers aren't published like the Ag tractors. Someone may have an industrial, construction, forestry serial number book and give the exact year, otherwise you will need to have your JD construction equipment dealer get it for you. The parts catalog uses serial number, not the year, to designate part changes during the production run.

You should get the John Deere Operator's and Technical (service) Manuals for it as well. You can get a printed copy of the parts catalog or you can use the online one and print off the pages you need. Here is a link to the 401C Parts Catalog;

https://partscatalog.deere.com/jdrc/navigation/equipment/59829

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(quoted from post at 11:14:58 06/03/22) Hi all,

I just purchased my first tractor. It's a John Deer 401C diesel. I am hoping you guy's or gals can help tell what engine I have and what year this tractor is based on the numbers if have. The tractor tag numbers are Tractor numbers
401CD
305275T, and the engine numbers are Type 4219DT 05
Serial 467670T. The tractor does not run unless you spray starter fluid manually. Previous owner says the injection pump is bad. Previous owner provided 4 new injectors. I am good at wrenching on gas motors, but know very little about the diesel engine. My plan is to do all the repairs myself. In order to get the right parts, in really need to know my exact model, year etc. I would really appreciate any help.

Thanks!
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