Yanmar 3TNV70 diesel engines - what does the suffix BJUV vs. XHB mean?

[joestewart]

Hello all, I have 2010 John Deere 850D Gator. I bought this Gator with the motor disassembled. The previous owner had foolishly left the internal components out in the rain, so they were allowed to rust (even though there was really nothing wrong with them). I do not want to pursue reconditioning this rusted block / crank / cam / cylinder head, so.........

I am shopping around for a replacement engine and I encountered a Yanmar "3TNV70-XHB" core on ebay for $1000 which seems reasonable. The rusted engine that I am replacing is a "3TNV70-BJUV". My question is: What does the "BJUV" and the "XHB" at the end of the model number mean?

What I'm really wondering is: will this "XHB" block bolt into my Gator?

One of the motor mounts in the Gator is an integral part of the frame and is of cast iron construction, so it cannot be readily altered to accept a block with a different bolt pattern.

So another way of asking my question is: Are the machined, threaded holes on the sides of the engine blocks (the holes for the motor mounts) in identical positions on the above mentioned engines?

Hoping someone with superior knowledge can chime in here. Thanks!

 

[HoyeTractor]

I don't have superior knowledge or really even an answer to your question but I did find the chart below. It does not have the same codes as the engines in your question but it might still be helpful to figure out what the differences could be.

 

[bmaverick]

Hello all, I have 2010 John Deere 850D Gator. I bought this Gator with the motor disassembled. The previous owner had foolishly left the internal components out in the rain, so they were allowed to rust (even though there was really nothing wrong with them). I do not want to pursue reconditioning this rusted block / crank / cam / cylinder head, so.........

I am shopping around for a replacement engine and I encountered a Yanmar "3TNV70-XHB" core on ebay for $1000 which seems reasonable. The rusted engine that I am replacing is a "3TNV70-BJUV". My question is: What does the "BJUV" and the "XHB" at the end of the model number mean?

What I'm really wondering is: will this "XHB" block bolt into my Gator?

Have you reached out to the eBay person to send over to you a few pixs of the engine in the areas of concern?

Aarron from Hoye's chart is helpful for knowing other mating components to these engines.

Between those two items of interest, you should be able to judge the ability to make component swaps.

 

[joestewart]

Thank you for these helpful replies. It appears that the suffix concerns various external attachments to the engine? My conclusion is that the the block and cylinder head of all "3TNV70" engines are identical. This is what I needed to know, since I was concerned about the mounting bolt hole locations (circled in attached photos of my rusted block) on the sides of the engine block being different.

I have not reached out to the seller. It turns out that the seller is a broker in used diesel engines "Diesel Reman and Parts", and if I called or emailed them, I would probably be speaking to someone that has never seen the engine being sold (and probably does not have ready access to it). Nevertheless, I will give them a ring to see what kind of info I can get.

Here is a link to the core I am considering buying:

YANMAR 3TNV7-XHB ENGINES USED FOR PARTS OR REBUILD | eBay