john deer or kubota

   / john deer or kubota #1  
Joined
Apr 8, 2012
Messages
32
Location
ny
Tractor
jd 1070
hi i have been looking at the speces for a jd 5065 e and kubota m6060 i see that the jd has a 179 cid motor for all there e modlels from 55 hp to 75 hp were kubota has a 203 cid for its 6060 63 hp and 71 hp 7060 why is deer using the same motor over so maney hp ratings from 45 to 75 hp any ideas would be helpful thanks art
 
   / john deer or kubota #2  
You honestly can't figure this out for yourself? It's not all that complicated. It allows JD to produce more of the same component (engine) lowering costs for design, tooling, manufacturing setup, prototyping, manufacturing production costs, inventory of replacement parts, etc. In manufacturing it's called economy of scale - producing greater numbers of the same thing lowers the overall cost.

This translates to more profit, or lower product cost, or both.

Think about this. You can go to a JD dealer and order parts for tractors that are 30+ years old. Do you have any idea of the amount of money JD has to dedicate to parts sitting in warehouses to provide parts support? It's probably in the hundreds of millions of dollars for world-wide parts support for agricultural, construction, and forestry equipment.

If you have the same motor in 3 or 4 different models, you're not carrying a whole lot of different parts in inventory for unique engines in every model.

It makes a lot of sense on multiple levels.
 
   / john deer or kubota #3  
In addition to what Swines said which is all on the mark it is easy to vary the horse power in a diesel engine by changing the amount of turbo charging used. To get more horse power you cram in more air during each intake stroke and adjust the amount of fuel injected for the power stroke to match the volume of air crammed in. As long as the bottom end can take the highest forces put on it by the more powerful settings there is no need to change any other parts. With some big truck engines varying the horse power is as simple as changing the computer chip that controls the injectors, Downside to more HP is sometimes they vary the warranty period lower the higher HP you go.
 
 
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