PF53
Kohler 1205001 crosses to STP 3512.
KOHLER 1205001
Baldwin - B10140 Fram - PH8172 Kohler - 1205001 B&S - 492932
Looks like a PF53
Fram makes a poor quality filter which I advise you to not buy. Purolator on the other hand makes an excellent high quality filter which costs no more than a Fram. Your Kohler filter 1205001 cross references to a Purolator L35310 sold at Advance Auto Parts and some Walmart stores. I recommend you use only synthetic oil in any air cooled engine.
ACDelco was created in 1916.
Wix 51348
12-050-01 may be a better number to search oil filter suppliers for a substitute. The Kohler oil filter 12-050-01 was superceeded to 12 050 01-S1. Fram still has the old number and it crosses to Fram filter PH8172
ph7575
Fram PH 8172
Equivalent to 052-050-02
Fram PH10960