broken2,I got the filter for my 12h at a New Holland dealer. The part# is JAC 545440. It was pricey but it's not something you need to replace often. Definitely worth it for your tractor, I think you'll see a night and day difference. I did find the filter online also: New Holland JAC545440 FILTER, ELEMENT
Will this Wix filter also work on the Snapper 1855? I hear the Snapper came with the Eaton rear end, different than the Massey 1855, but do they use the same hydraulic filters? Thanks.