Heavy-duty transmission elements remove wear particles, preventing them from damaging moving parts and ensuring proper system function. Replacement elements should be changed based on OE recommended service hours. Product Specifications Industry: Off-Road Equipment Product Type: Set of 2 Maximum Performance Glass Transmission Elements Notes: High Capacity Filters Outside Diameter: 3 7/32 (81.8) Inside Diameter: 1 17/32 (38.9) One End Length: 4 3/16 Gasket: Furnished Gasket: [2] Irregular, [2] Square Cut; Integral Gasket: [1] Included Each Element O-Ring: (6) Viton Included Micron Rating: 17 Nominal; 40 Absolute Application: Allison World Transmissions with 2 In. or 7 In. Sump Compatible Competitor Part Number: Allison 29545776, 29548987, 29558117, 29558328; Donaldson P179206, P560972; Fleetguard HF28944, HF35153