The McCormick 3553503M1 is a genuine OEM oil seal designed for various McCormick agricultural tractors. This critical sealing component ensures optimal performance and prevents fluid leaks in compatible models. With precise dimensions of 40mm inner diameter, 55mm outer diameter, and 8mm thickness, it provides a perfect fit for applications in McCormick CX, MC, MTX, X6, and X7 series tractors, maintaining system integrity and extending machinery lifespan.