The McCormick B502921 Gasket is a genuine OEM replacement part designed for various McCormick MC series tractors, including MC100, MC105, MC110, MC115, MC120, MC130, MC135, MC80, MC90, and MC95 models. This gasket ensures a proper seal, preventing leaks and maintaining optimal engine or system performance. It is also cross-referenced as Case IH 305809A1 and fits Case IH MX and MXM series tractors, providing reliable sealing for critical components.