D2 3j donkey

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caterpillarsam

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Hi all
I’m after the part numbers for the two 20thou undersize crankshaft bearings in my D2 3j donkey engine.
Thanks in advance

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Wed, May 20, 2020 5:27 PM

ccjersey

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My parts book has
8b6 rear (Next to flywheel)
8b5 front

D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄

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Wed, May 20, 2020 6:57 PM

caterpillarsam

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Reply to ccjersey:

My parts book has
8b6 rear (Next to flywheel)
8b5 front

[quote="ccjersey"]My parts book has
8b6 rear (Next to flywheel)
8b5 front[/quote]

Yh I have that in my book as well, however it’s not a compatible part number that cat recognises if that makes sense, I need the updated part number

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Wed, May 20, 2020 7:06 PM

neil

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Reply to caterpillarsam:

[quote="ccjersey"]My parts book has
8b6 rear (Next to flywheel)
8b5 front[/quote]

Yh I have that in my book as well, however it’s not a compatible part number that cat recognises if that makes sense, I need the updated part number

I have 3B7980 for flywheel bearing and 3B7979 for front of tractor bearing, and 2A3435 for the dowel (2 required). These numbers are for 3J1 through 3J4877. Then it changes to 8B6 which would be 8B0006 in Cat's system for the flywheel end and 8B0005 for the front of tractor. Dowel part # is unchanged

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Wed, May 20, 2020 8:00 PM

caterpillarsam

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Reply to neil:

I have 3B7980 for flywheel bearing and 3B7979 for front of tractor bearing, and 2A3435 for the dowel (2 required). These numbers are for 3J1 through 3J4877. Then it changes to 8B6 which would be 8B0006 in Cat's system for the flywheel end and 8B0005 for the front of tractor. Dowel part # is unchanged

Thank you all, so handy you guys all helping me out

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Thu, May 21, 2020 6:07 PM

mog5858

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Reply to caterpillarsam:

Thank you all, so handy you guys all helping me out

if you can't find them they are really quite simple to make with a lathe. as the are just 6060 AL. just add your oil clearance to whatever you got you crank ground too.

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Sat, May 23, 2020 10:55 PM

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