The McCormick 6660522A1 is a genuine OEM seal ring designed for various McCormick tractor models, including CX, MC, MTX, X6, X7, and X8 series. This original part ensures optimal sealing performance and durability for critical engine or transmission components. With an inner diameter of 110 mm, an outer diameter of 130 mm, and a thickness of 12 mm, it provides a precise fit. This seal ring is also cross-referenced with several other OEM part numbers, highlighting its broad applicability and quality.