all oil filters are not alike, that is for sure.
yesterday, I changed oil on my Bad Boy Zero Turn mower, it has a Kohler engine.
I have a Wix filter for the 1800 laying on my shelf for the next oil change.
Wondered if it would be okay for the mower?
Just to be on the Safe Side, I had bought a full kit of parts to perfom the annual change, all 3 filters, air, foam air precleaner, oil....
so, it was easy to look at the new Kohler oil filter and compare it side by side with the Wix filer.
both are exactly the same diameter and length, and center bore thread.
But, the Wix only has 6 oil return holes in it, whereas the Kohler has 8 oil return holes...
Since this is an Air Cooled engine, and oil is the life blood of an Air Cooled engine, I was glad to have the Kohler filter in my hands....
the cost at the local dealer was horrible, but I needed to do it right the first time, so that I could get a feel for buying online at a savings of 2/3rds of what the dealer wants.... I like to deal locally, but .... paying $35 for filters when I can get the same exact branded parts online for less than 1/3rd that?