Kohler 2 Air Filters Plus 2 Pre-Filters 235116-S, 235116S, 237421-S. Same As John Deere AM31400, M45800. Also Same As Tecumseh 32008, 32906 2 Quality Aftrmarket Air Filters and 2 Pre-Filters. Air Filters Replaces Kohler 235116-S, John Deere AM31400, Tecumseh 32008 Pre-Filters Replaces Kohler 237421-S, John Deere M45800, Tecumseh 32900 ID: 4-5/8", OD: 6", Height: 1-7/8"