20 083 02-S Air Filter+52 050 02-S Oil Filter fits Kohler Courage 15 16 17 18 19 20 21 22 HP YTH21K46 YTH20K46 Engines KH-20-083-02-S KH-20-883-02-S1. Air filter replace # 20-083-02-S,20-083-06-S,KH-20-083-02-S KH-20-883-02-S1; Pre Filter replaces # 20 083 03, 20 083 03-S and 20 083 04-S;Oil filter replace #: 52-050-02-s,52-050-02.
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