In Reply to: Re: More Air Cleaner Questions posted by Farmer Dan on April 21, 2008 at 21:18:30:
Dan....I don't know which tractor with which air cleaner they used in the tests.I do know they started using the United air cleaner in 1939,my 39 has one on it, serial number 8840.There was also a Donaldson,9n9600C-1 used at the same time frame. don b
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