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.
	
		
			
		
		
	
				
			 
			