Arnold Oil Filter - Briggs & Stratton/Kohler Engines Arnold oil filter replacement for Kohler and Briggs & Stratton engines For riding mowers and RZT mowers Fits Briggs & Stratton, kohler 14, 16, 18 and 20 horsepower magnum engines; Fits Briggs & Stratton vanguard and twin cylinder engines Replaces Kohler model 52-050-02, and Briggs & Stratton model 491056 Measures 3/4" inner diameter by 3" outer diameter by 3-5/32"