1026359M1 One New Cork Fuel Gasket Fits Allis Chalmers 170 180 D15 D17 D19 D21One New Aftermarket Replameanet Cork Fuel Gasket Fits Allis Chalmers Tractor Models: 170, 180, D15, D17, D19, D21, WC, WD45, WF Fits International Harvester Tractor Models: 300, 350, 400, 450, 460, 560, 600, 650, 656, 660, 706, 756, 766, 806, 826, 856, H, HV, M, O4, OS4, Super M, Super MTA, W4 Specifications: 2 1 8" OD Interchangeable with MPNs: 1026359M1, 1026556M1, 1026556M91, 12081G, 13194D, 1C 5304, 208137, 355888, 355888R2, 49923D, 70208137,