John Deere 850 tractor

[bmaverick]

i knew the 850 and 950 were full yanmars but i guess i missed the 1050 as one, i keep seeing like the old 1020s in my head even though i read 1050

Well, the Yanmars run all the way up into the JD 4000 series.

 

[clemsonfor]

yea i know but thats just motors right? My uncles 12 year old 4400 has a yanmar engine in it.

But i was tinking JD 1020 and 1010 google those models and see what i am taling about, far from a yanmar.

 

[bmaverick]

yea i know but thats just motors right? My uncles 12 year old 4400 has a yanmar engine in it.

But i was tinking JD 1020 and 1010 google those models and see what i am taling about, far from a yanmar.

Many of the JD units were actual Yanmars in JD green. If was in the lat 90s and early 00s that just the engines came over. The Yen vs. the USD was the key point there.

 

[clemsonfor]

the 4400 is a tractor made in the US...just has a Yanmar engine.

Many of the smaller tractors have been made and are still made in Augusta Ga just down the road from me.

And yes i know the 850,855,790,950 etc were JDs.

The 1020 is a 60's era john deer ag tractor meant to pull ground engaging equiptment...would take 2 yanmars to equal in weight the 1020

 

[bmaverick]

These are the known Yanmar models made as John Deere's in my database.

MODEL DRIVE ENG HP PTO HP CYL ENG TYPE

JD 330 2W 16 n/a 3 3TN66UJ
JD 355 2W 18 n/a 2 2V78
JD 415 2W 15 n/a 3 3TN66UJ2
JD 430 2W 20 n/a 3 3TNA72UJ
JD 455 2W 22 n/a 3 3TNA72UJ3
JD 650 2W / 4W 16 14.5 2 2T80UJ
JD 655 2W / 4W 16 10.6 3 3TN66UJ
JD 670 2W / 4W 18.5 16 3 3TNA72
JD 750 2W / 4W 20 18 3 3T80J
JD 755 2W / 4W 20 15 3 3TNA72UK
JD 770 2W / 4W 23 20 3 3TN82-RJX
JD 790 2W / 4W 30 26 3 3TNE84EJK
JD 850 2W / 4W 19 22 3 3T80J
JD 855 2W / 4W 24 19 3 3TN75RJ
JD 870 2W / 4W 28 25 3 3TN84
JD 900HC 2W 25 22 3 3T80J
JD 950 2W / 4W 31 27 3 3T90J
JD 955 4W 33 27 3 3TN84RJ
JD 970 2W / 4W 33 30 4 4TN82
JD 990 2W / 4W 40.4 35 4 4TNE84
JD 1050 2W / 4W 36 33 3 3T90TJ turbo
JD 1070 2W / 4W 38.5 35 4 4TN84
JD 1250 2W / 4W 44 40.7 3 3T95J
JD 1450 2W / 4W 55 51.4 4 4T95J
JD 1650 2W / 4W 67 60 4 4T95TJ turbo
missing info betwix
JD2210 4W 23 17.1 3 3TNE74
additional info yet to be confirmed ...

 

[silvertramp]

Thanks for the information.

 

[normde2001]

Supposedly most, if not all of the Yanmar-built JD's had a lot of parts built strictly to JD standards and are not interchangable with Yanmars.

 

[bmaverick]

Supposedly most, if not all of the Yanmar-built JD's had a lot of parts built strictly to JD standards and are not interchangable with Yanmars.

I have not seen this yet to be true. If you had to rebuild an engine, i would say the engine head has a difference to a degree, but the pistons, crank, rings, sleeves, and such are all the same. If you can not find a JD head, a Yanmar may fit well enough. Then you will need to the other parts on the outside of the head to match or modify.
Heads are becoming a rare things for the JD engines. I know, been there done that bit already.