In my shop I use OEM Briggs, Kohler , large Kawasaki filters on their respective machines. I think it if anything besides having the quality of the OEMS not being questioned- it just looks better to the customer. The exception has been the small 49065-7010 filters. I use some OEM, but also a couple shop packs of the OEP. This year, I've had 2 leakers this year and 1 last. All had been on a while , from a month to one almost a year. The OEP filter uses a much less substantial seal.
So overall, what does everyone use for filters and also specifically for the 49065-7010 ?