The McCormick 6518407M2 is a genuine OEM piston ring designed for optimal performance and durability in McCormick agricultural machinery. This essential engine component ensures proper piston sealing and compression, contributing to efficient engine operation. It is compatible with a wide range of McCormick MC, MTX, X6, X7, and X8 series tractors, specifically for models with serial numbers H04001 and above, as well as various X6, X7, and X8 sub-models including VT-DRIVE and P6-DRIVE variants. Manufactured to McCormick's stringent quality standards, this piston ring provides a precise fit and reliable function for maintaining engine integrity.