Specs: Description: Air Filter, ID: 2 1/2″, OD: 4 1/8″, Height: 10 3/4″ Replaces OEM Numbers: Ariens: 00181071, 21536900, 21537000, 21538600, 21548800, Bobcat: 4114746, 4164630, 6672467, Briggs & Stratton: 4235, 841497, CaseIH: 86401594, 86519866, 86549700, 87300178, 87300179, 87682988, Caterpillar: 1213661, 1467472, Clark Equipment: 6672467, Club Car: 102498601, Chopper: 900610, Exmark: 103-1327, E-Z-GO: 72987G01, Ferris: 5022892X1, 5023141, 5023141SM, 5102126X3, 841237, Ford/New Holland: SBA314431176, Grasshopper: 100936, Gravely: 21536900 Compatible with: Bobcat: S70, 463, 553, 553F, 553AF, 553AF/BF Skid Steer, 325, 325D, 325G, 328, 328G, 329, 425, 428,463, 553F, E32 and E35 Excavators, 463 and 553 Loaders, D1005 Engine, 2200 and 2300 Utility Vehicles, ZT223, ZT225, ZT120, ZT227, Predator PRO and Fastcat series, Briggs & Stratton: 540000 and 610000 series, Case: D25, D33, D35, D40, D45, DX25, DX26, DX31, DX34, DX35, DX40 and DX45 Compact Tractor, 31, 35, DX29, Farmall DX33 F