My first post. Good reading on here. Figured i would contribute with some pics of a PH7575 that was used on Kohler 26HP twin cylinder engine on a MY2006 GS6500 Craftsman Garden Tractor...has 600 hours on it. Got a stash of these filters on clearance for 75 cents at Tractor Supply couple years ago. Have used PH3614 in the past with good results and much cheaper than the Kohler ones you are "supposed" to use.
This filter had about 100 hours of use on it. Owners manual says to change every 50 hours, but after cutting filters open over the years, they look so clean, i figured that running this to 100 hours would not hurt. After cutting this one open, i am now thinking of pushing these to 150 hours or more). The filter media is just so nice and clean and amber. No crud or anything. Keep in mind that this engine gets an oil change with 5W-30 synthetic before winter weather sets in (cranks more easily) for snow plow duty. It then gets another oil change to 10w-30 (usually non-synth) in late spring for mowing. Oil comes out clean and amber every time.
Cut this filter open with an angle grinder with a thin cutting blade, so excuse the grit and shavings from the operation. Nitrile ADBV was nice and flexy, rugged filter element, nice rugged spring. Everything looked good. Enjoy.
This filter had about 100 hours of use on it. Owners manual says to change every 50 hours, but after cutting filters open over the years, they look so clean, i figured that running this to 100 hours would not hurt. After cutting this one open, i am now thinking of pushing these to 150 hours or more). The filter media is just so nice and clean and amber. No crud or anything. Keep in mind that this engine gets an oil change with 5W-30 synthetic before winter weather sets in (cranks more easily) for snow plow duty. It then gets another oil change to 10w-30 (usually non-synth) in late spring for mowing. Oil comes out clean and amber every time.
Cut this filter open with an angle grinder with a thin cutting blade, so excuse the grit and shavings from the operation. Nitrile ADBV was nice and flexy, rugged filter element, nice rugged spring. Everything looked good. Enjoy.