Yamnar engines

[scurvy]

Why doesnt John Deere make its own engines for its compact tractors(4000/4010 series)?They are Yamnar engines.Does John Deere own Yamnar? Why couldn't or why did John Deere not make there own engine for the 4000/4010 series?

 

[RoyJackson]

It's a cost situation. Why spend the millions to set up manufacturing facilities when one can buy the engines and componenets? In the case of the smaller Deeres (like my 670), the entire machine is Japanese.
Most manufacturers of vehicles outsource quite a few of the components. The companies I've worked for were mostly automotive suppliers.

 

[rockyridgefarm]

The yanmar engines aren't two bit machines, either. Look at their history and the awards they've received. Deere is lucky to have them purring under those green hoods. Liike what was said, most "manufacturers" are actually assembling subassemblies and marketing. They often call the shots on the design of those componants, but also, very often use "off the shelf" componants.

I have a Yanmar, now, and that is a large influence in the tractor I am going to buy. I know that I would be very satisfied with one under a green hood, too.

 

[scurvy]

I agree they are great engines,I was just wondering why John Deere never created there own small engine./w3tcompact/icons/smile.gifAs far as I am concerned the Yamnar engines are 1 of the best things about the JD 4000/4010 series.

 

[tractorlet]

The Japanese have been in production of small diesel engines
longer than anyone in the world. While the west was growing bigger and bigger vehicles and and gas / diesel engines the Japanese were perfecting the smaller diesels.

Roy is right on tooling. Japanese manufacturers also have many common japanese brand component parts.

Japanese also split manufacture. For example, Iseki which produces compact Massey ferguson, has their Iseki engines in under 34 hpe(depends on model) and Isuzu 4 cyl diesels in their larger tractors.

Quality either way though.

 

[tractorlet]

Forgot to address your first question.

John Deere does not own Yanmar.

 

[scurvy]

Thanks Tractorlet /w3tcompact/icons/smile.gif

 

[Gunfighter]

John Deere builds their own large engines but I understand that is done in Mexico...Don't think you'll find a car, truck or tractor that is 100% American made. The only exception maybe some of the small garden tractors and then I won't bet any money on it...

I have a JD 790, it's 100% made in Japan by Yanmar...

 

[GaryK]

I have a 2000 JD 4100 HST and if I am not mistaken, Yanmar made the whole thing, not just the engine

 

[tractorlet]

Gary, you are absolutely right. In fact, the current new JD products made in Japan are JD 790, 990, 4100N, 4100, 4010, 4110, and probably a few others; all use Yanmar engines and the country of origin is Japan which means that is where it was made. The manufacture tag (required by U.S. Customs for entry) must show the country of origin and if one searches very hard way back up in a most unlikely spot, usually in the rear inside fender well area but on occasion in the front under frame area, you'll find a plate listing Yanmar Engine Company Tokyo Japan. And that is in addition to the engine identifier on the engine. It means the entire tractor.