jetlag1946
Member
I received an aftermarket seal kit for my 4500 power steering pump . The new holland part number is DHPN3A674A . The kits come up on ebay using that number . The after market people say their seal kit replaces it . When I got my seal out it is a double seal for each direction and is 5/16 thick . The replacement seal is a one way single and 1/4 thick . I went ahead and put the seal in with spring toward inside of pump . I figure the outward seal side is not all that important . There shouldnt be any thing in the timing cover that would have any pressure on it . I dont see how something with no pressure would go by the the seal facing in . I havnt installed the pump yet , it is not to late to take the seal out . I went back to the new holland parts and my pump model matches the one in the parts view . It is for tractors 65 - 70 . and mine is a 67 . I also checked on the part number for the actual seal only and it is part 8 number EONN3N529AA . When I click on it , it shows part number 83925002 . When I put both of these numbers in search on ebay they come up in an aftermarket seal , but they are also a single seal not 2 sided . I did see a listing that said the seal was for after 1968 tractors . I saw post once that said there are two seals in there turned in opposite directions . There were 3 seals , all the same in the kit but there is only room for 1 in the housing . There is 1/16 space left now between the seal and the snap ring . I dont know what to do I cant find the double seal . What is causing this mix up ? Will it be okay with the single seal ?