Whats the story on Yanmar and John Deere ?

[Cahaba Valley Farm]

The Deere 4x20 series, which had Deere Powertech engines since first being manufactured in 2004-2005, now have Yanmar engines for the 2015 model year. From what I understand, the Powertech engines couldn't meet tier 4 emission requirements.
I also have been told (by a Deere salesman) that the Yanmar engines don't produce as much torque as the Powertech engines. I'll wager the Yanmar engines start a lot easier in cold weather though.

Hey Roy, I know this is a old thread but I see you have a 4520. Is yours one of the ones manufactured between 2005 - 2014 or the old school one?

 

[RoyJackson]

Hey Roy, I know this is a old thread but I see you have a 4520. Is yours one of the ones manufactured between 2005 - 2014 or the old school one?

Mine is a 2005 CUT (although it's pretty big) with the Powertech engine.

 

[Cahaba Valley Farm]

Mine is a 2005 CUT (although it's pretty big) with the Powertech engine.

Hey Roy :wave: Nice to finally talk with you. I have read many of your posts over the years :reading: I very much appreciate what you have contributed to this community :salute:

Does your 4520 have a intercooler?