New Transmission Differential Bearing Retainer O-Ring for International and IH Farmall Cub and Cub LoBoy Tractors.
O-Ring fits BOTH left or right side of transmission differential gear case.
Case IH O-ring part number 285723R1.
These o'rings are typically found to be cracked, crushed, or brittle on disassembly due to age. Reuse can result poor sealing and a slow leak around the bearing retainers.
This o-ring is also used in various other applications.