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I have a John Deere 750 tractor made by Yanmar the I bought used. The engine was disasembled. Besides missing some parts I've discovered that the block is cracked. The engine is a Yanmar 3T90J 104 cid which is a probrietary engine made by Yanmar for John Deere and the parts are apparently only available from John Deere.

What I want to know is if there is another Yanmar engine that would fit in the 3T90J's place and what that engine model would be. Also I would like to know a source new or used for the replacement engine.

Thank-you

John Deere 750 engine replacement
Yanmar Tractors
Replies 4 Post by Richard J Biasi

I have a John Deere 750 tractor made by Yanmar the I bought used. The engine was disasembled. Besides missing some parts I've discovered that the block is cracked. The engine is a Yanmar 3T90J 104 cid which is a probrietary engine made by Yanmar for John Deere and the parts are apparently only available from John Deere.

What I want to know is if there is another Yanmar engine that would fit in the 3T90J's place and what that engine model would be. Also I would like to know a source new or used for the replacement engine.

Thank-you

John Deere 750 engine replacement
Yanmar Tractors
Replies 1 Post by Richard J Biasi