13a main bearings

Here is what info I have...
Main bearing bore size = 4.6242/4.6250"
Maximum bearing wall thickness = 0.4341"
Oil clearance 0.0060/0.0086"
Main Bearings are aluminum in 0.010 - 0.025 - 0.050" undersizes with only the 0.050 shown in the Cat Parts book.
Rods show 0.010 - 0.020 - 0.025 - 0.050 undersizes with only the 0.050 shown in the Cat Parts book.
If Cat has different undersizes I do not have info on them.

Thanks old magnet
I should be able to figure out what bearings I have now. Did aftermarket ever make any of the different sizes.
Thanks Jesse

Other than the 0.050" undersize bearings listed in the Cat part book the rest are after market sizes.

Thanks for the info. Nothing is ever easy....

Decided I can make .025 under work. Any one have a part# for the center and rear main bearings.
Thanks Jesse

What are you calling center? It's a seven bearing crankshaft.
Thrust is #4 Sealed Power MB1140AL or Federal Mogul 1597AT
#7 is Sealed Power MB1837AL or Federal Mogul 2489AT
#2-3-5-6 are Sealed Power MB1139AL or Federal Mogul 1598AT
#1 is Sealed Power MB1138AL or Federal Mogul 1596AT
Those are base numbers, you will need to request the 0.025" undersize.