JD450E

leonardsauto · Oct 17, 2014

We have a JD450E, serial number T0450EC724076. Need to replace the block on it. Current block number is R78556. Can anyone tell me what blocks are compatible? We have one that has casting numbers R55011 and R55034 on it. American Machinery (local JD dealer in Hawaii) is having trouble helping me....and if THEY can't, who is supposed to?

Any help or information you can give would be appreciated!!

Tx Jim · Oct 18, 2014

I think any 276 CID(4.5L) engine built for a turbo will interchange

The following numbers came out of 450E parts catalog
RE31517 CYLINDER BLOCK 1 (MARKED R90170) (SUB FOR AR97774, MARKED R78556 AND RE25613, MARKED R78556)
RE50671 CYLINDER BLOCK 1 (MARKED R108755 OR R124851)

leonardsauto · Oct 22, 2014

Thank you for the response. I will let print your response for my dad so he can see if he has any of those heads

(quoted from post at 04:10:47 10/18/14) I think any 276 CID(4.5L) engine built for a turbo will interchange

The following numbers came out of 450E parts catalog
RE31517 CYLINDER BLOCK 1 (MARKED R90170) (SUB FOR AR97774, MARKED R78556 AND RE25613, MARKED R78556)
RE50671 CYLINDER BLOCK 1 (MARKED R108755 OR R124851)

JD450E

leonardsauto

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Tx Jim

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leonardsauto

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