John Deere 8820 motor October 28, 2020 12:12PM
I’m sure this has been discussed somewhere here but can’t find the answer. Does a 466 out of an 8820 combine have the big bolt pattern or the small? Want to use it in a 4320 or 45/4620. Serial R66466A293997. Should be crank driven oil pump? Thanks for the help.

Re: John Deere 8820 motor October 28, 2020 10:02PM
That just depends, if it was first year or two of production it could be small bolt pattern and possibly cam driven oil pump. Later were crank drive oil pump and big bolt pattern. You can check engine serial number to verify oil pump style or remove tach drive cover on right rear side of engine to look in.

Re: John Deere 8820 motor October 29, 2020 12:05PM
Thanks for the info

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