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1958 Oshkosh WA-906 with Cummins HRF-6-B

Posted By MNFarmboy Wednesday, June 03, 2020 5:10 AM
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MNFarmboy
 Posted Wednesday, June 03, 2020 5:10 AM
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Last Active: Wednesday, June 03, 2020 2:45 PM
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hello all, newbie to this forum. We had a main thrust bearing go out and so we are rebuilding our HRF-6-B cummins engine. We are searching for cylinder liners and piston kits and possible a new cam. We know that this motor is very similar (many part crossovers) to the NH-220-B engine. Obviously new old stock is limited to non existent and so we are trying to trace the history of part numbers to see if there are the same parts but with updated / changed part numbers. I have attached four scans of the the pistons for two motors and the cylinder block for the two motors (liners). Any knowledge or connections to the guy / gal who is that person who seems to know everything would obviously be helpful.
 HRF-6-B Cylinder Block.pdf (45 views, 1.33 MB)
 HRF-6-B Piston Parts.pdf (27 views, 2.24 MB)
 NH-220-B Cylinder Block.pdf (25 views, 1.50 MB)
 NH-220-B Piston Parts.pdf (30 views, 2.33 MB)
 2019-01-05 15.21.50.jpg (39 views, 2.72 MB)

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