I am trying to find a good current part number from any filter manufacturer for a 1952 Case LA oil filter. The first time I tried to change the filter, the replacement was the wrong size, so I just put the old one back in and changed the oil (oil looked VERY clean -- it"s an LP tractor). I have a note in my maintenance log that the filter currently in the tractor is a Hastings L303, but no one seems to be able to cross that to anything else. I have searched the internet 6 ways to Sunday and keep coming up empty. I just purchased a WIX 51006, but it is one inch shorter so it probably won"t work. The dims of the L303 filter are 4" diameter, 6" tall. Any further help would be most appreciated.