Deere 9500

[beanman2000]

Looking to possibly purchase a JD 9500.  This is a 97, I think the last year made.  Question is what are the differences between a 9500 and a 9510?  What about early versus late 9500?  Also, this one may have the small engine.  Just how big of a deal is that?  What kind of things should I be watching out for? Thanx for info.

[thjdh]

We have a 97 9500 and really like it 4th year on it.   One thing to look for is a lot of tha later ones have the 10 series updates which I think is a must.  Also if your going to run a 25ft bean head get the big engine. We run a 25 ft bean head and 8 row corn head and the big engine and 10 series updates are a must.  The 9510 tens had the new 8.1 L engine.

[Sid15]

http://www.deere.com/en_US/ag/servicesupport/jdharvestlink/modelyearchanges.html

[Lunchbox41]

Bought a '97 9500 low houred, used it on row crop last fall, as well as 2 wheat harvests.

Had everything a 9510 has, including contour master & yield monitor, except the price tag!

It has a big motor, and we need it with the hills and irr corn, and we also unload on the go!

 I think they only made 10 series for 2 years, but not sure on that one.

We are happy with our machine.

Good Luck!   

[beanman2000]

Still looking at this 9500 and can't seem to get a good answer about the engine.  I do know it is the 7.6L, that is about all.  Dealer can't seem to pinpoint the difference.  Anybody have any ideas?  TIA

[Sid15]

I could be wrong but I didn't think the 200hp model had the electronic fuel injection. No boost.  I would also think the serial number would show the difference.

[beanman2000]

The combine serial number simply refers to the engine family, in this case a 7.6 L, there seems to be nobody at the dealership that can distinguish the two.  The salesman I was working with seemed to be diligently researching the question even going back and finding the original build sheet, but again, it only refers to the 7.6L, no reference to HP.  The combine was purchased as a corn machine, which means, according to the build sheet, it could have the 'big engine', but doesn't necessarily have it.  There seems to be some question as to whether the 7.6L is the same thing as the 466.  7.6L calculates out to 463 cubic inches and change.  It does have the electronic fuel system. Some websites refer to the 7.6L interchangeably with the 466, even showing the 466 with electronic fuel controls. Your answer makes sense that the electronic system would be the higher horsepower unit, and more desireable from the standpoint of better efficiency.  Either way, my old 7720 has 190 hp and it seems to be enough for what I do.  The 9500 is so similar in size I can't see where 10-15 hp would make that much difference.  Thanks for your reply.

[huserag]

I have a 95 9500. Bought a buly dog chip for it. Woke that bad boy up. Run a 925 and 843. Vern

[beanman2000]

thx

[awy2]

The 7.6L engine is indeed a 466 CID.  There were many versions of this engine produced over its roughly 20 year mainstream lifespan.  It was offered as a naturally aspirated low HP model in the 4240 tractor and gear drive 6620 combine; turbocharged in the 4440, hydrostat 6620, and 7720 combines; turbocharged and intercooled in the 4640, 4840, and 8820.  Move forward a few years and it got a new head design and different water pump configuration in the 50 series tractors ('83-'88) and Titan II combines.  If I am not mistaken, it was with the new head design in the 50 series that this engine became known as the 7.6 L.  It remained virtually unchanged for the 55 series tractors ('89-'91).  Received electric fuel shutoff solenoid in the 60 series tractors ( '92-'94).  I believe the combines followed the same pattern based on year models.  In late 1994, when Deere released the 8000 series tractors, all of them had the new electronic bosch pump setup on them.  The 8100 was the only one of the new line to feature the same 7.6L engine but with this new fuel management system.  All the rest of the 8000 series had the 8.1L.  I am not 100% sure, but I think the '95 and '96 model 8100's were the only two years that had the 7.6L as they went to the 8.1L as well.  I also am nearly certain that the '96 and '97 9500 combines had the exact same 7.6L setup as the early 8100's.  

Other than minor pump changes, head, water pump configuration, oil pan, and a few other minor differences, the 466 engine was used in tractors, combines, and cotton pickers, as well as many other applications for about 20 years relatively unchanged on the inside.  HP ranged from about 110 HP naturally aspirated, to well over 300HP in some of my neighbor's  4640's with minor pump adjustments (LOL).  In my opinion, the ol' 466 is one of the best engines ever made of any brand.  I wouldn't be afraid of the 9500 being underpowered at all, since there are numerous tuners available to achieve slightly more power if needed. 

I know it has been about a month since this post was last replied to, but I stumbled across it and figured I would share my knowledge with you.  Hope this helps.

Adam