This is an OEM Honda oil filter from my new to me '94 Honda VT1100. No idea on how many miles on it. Was planning on changing it regardless because I change all fluids on vehicles I buy, plus this filter had a dent in it from hitting something (apparently a not so uncommon thing on these bikes). Dented filter on bike: another view: No idea what the actual filter P/N is: Baseplate shot with center tube: Silicone ADV and metal endcaps (filter in background is a ST2 off my truck) Metal crimp seam: Leaf Spring Inside can shot, better view on dent internally: Overall a solid filter. No idea who makes it. No idea what the efficiency is. Silicone ADV still very pliable. Filter looks almost new except for the dent. Little bit of rust on the top of the inside filter can, but no big deal. Installed a ST6607 and Supertech 15w-40 for a 500 mile flush. A lot smaller than the Honda filter, but Fram shows the PH6017A to be the correct filter, which is the exact same size as the 6607. Not crazy about the nitrile combo valve in it either, but as I said, it is a short run. I grabbed a few clearance TG3593a filters, which are very close to the OEM Honda size. I think the TG is a great alternative since it has the silicone ADV, and with the high heat of motorcycles (even though water cooled) is a good thing to have.