Parts that can be interchanged between models

[Gary Sweat]

I was wondering if there has ever been a parts interchange list between models. I noticed on the YM1900 that there are a lot of 1600 and 2000 and some 1700 parts that are the same or will work with little modification. It would really be great to know if there are some things that can be upgraded to a later model part.

Example is maybe a larger gpm hydraulic pump or maybe cylinder sleeves and pistons from a 2000 or a newer 3pt hydraulic valve, front axle, wheels etc.

 

[normde2001]

I doubt anyone has ever bothered to compile a list, (other than Yanmar, in Japanese), but most parts dealers list a part with the various models it will fit.

 

[Gary Sweat]

I doubt anyone has ever bothered to compile a list, (other than Yanmar, in Japanese), but most parts dealers list a part with the various models it will fit.

Yea, I have seen some parts dealers that list what models a part fits and the ones that say "OEM replacement". I started thinking about this after getting a generator from a Datsun that is a perfect match. I have a oil filter chart for my motorcycle that list what other brands and models that are the same. I'm thinking probably several of the JD tractor parts are the same that were built by Yanmar and I've been looking at hydraulic pumps from other Yanmar's that look to be the same bolt pattern and size but have different outputs.

No doubt it would be a bit of work to put together.

 

[normde2001]

The Fredricks catalog appears to be about the most complete in parts interchangeability.

 

[Andy in Gap]

This might be helpful. http://www.lmtcompany.com/yanmarcatalog.pdf http://www.lmtcompany.com/jdcatalog.pdf Wayne has the catalogs set up to show which models the parts will fit.

 

[Gary Sweat]

Thanks, both catalogs are interesting very helpful to a point. On a quick scan I see that the 1900 and 2000 (green) are virtually the same machine with only some minor cosmetic differences. The 1900 apparently has a unique 3pt system that does not show up on any other Yanmar. Same internal parts engine wise, so it is curious how they got 1 HP more out of the 2000. Must be something in the drive train although they are the same too.

What I got from the catalogs is that they are listing an exact part for the model but not what can be substituted from a different model to either increase performance or is an upgrade to a part that changed on later models to correct a problem. Maybe that's not something that can be done

 

[careyo63]

Cyl. Bore The Piston Rings are Different for some models. I'm sure there may also be other upgrades.

1900 RS 750 724-750-22500
2000 Red /Grn. 724-763-22500
Grn 724-750-22500

Carey

 

[California]

[1900]...Same internal parts engine wise, so it is curious how they got 1 HP more out of the 2000

If the engine internals are identical then maybe the difference is nothing more than rated capacity. One example might be better cooling that allows 2000 to run at 20 hp full output continuous and not overheat, if you use it to power a stationary ditch pump etc under continuous full load.

Or maybe less power loss in the (different?) pto.

The most obvious difference might be they found they could run that same engine at higher rpm continuous without an increase in wear so they went back and rated it for the same torque at higher rpm. (Torque x rpm = hp).

There has to be some external reason if the internals are the same.

 

[Andy in Gap]

Gary, getting back to your original question about compatibility between models... in looking at the parts catalogs, it's pretty clear that if yanmar had a common part in house, they would use it for any and every tractor that it would fit. To me it means that what you are trying to do (use parts from other tractors on your 1900 to improve performance) is gonna be tougher. In other words, the parts are different enough that Yanmar didn't use something that it already had in stock. Just an observation, but it seems to me that if it could be made to fit, they have already done it.

 

[deepNdirt]

What you are asking could definitely be good info to have available for layman's use,
Back when I work on motorcycles I could spend hours cross referencing parts numbers to find someone who had the part in stock without having ordering it,
I found some parts were the same no matter which name Yama,honda,Kaw,suz etc, was labeled, Could even go different year makes, a part used on say a 1980 honda would be used over onto a 1983 yamaha,ect,etc, as time progresses many parts were built with a newer redesign but can still fit on the older pc it attached to, and then because of the redesign will be another parts number, I found this out when replacing a radiator on our Ford SUV, one that was suppose to fit a truck and had 2 Numbers different in the parts No# but 30.00 difference in price:thumbsup: the only thing I found different in the radiators was the top was not as thick, but again this could been different in design change in year make,
So I would imagine could be possible the same on Jap tractors as well, its just knowing how to cross reference the parts numbers and having a visual on the part, Back in the 80's all we had was microfiche to use today we have the WWW:thumbsup: