I just got back from my Yanmar dealer after picking up engine oil and a filter for the 200 hr service on my SA324. After taking off the old filter I noticed the new one is larger. The dealership is now closed for the weekend. The filter threads and rubber gasket look identically sized, and I think there is space enough to fit the big filter on the tractor. Also, note the last 5 numbers of the filter part numbers are identical (-35170). See the photo. I think I will put it on, unless someone thinks that's a bad idea. Thanks.