The McCormick 3693315M1 is an original equipment manufacturer (OEM) piston ring designed for optimal engine performance and longevity. This genuine piston ring ensures proper compression within the cylinder and effective oil control, critical for various McCormick agricultural tractors including CX, MC, MTX, XTX, and T-MAX series. Manufactured to precise specifications with a 100mm bore diameter and 3mm thickness, it guarantees a perfect fit and reliable sealing for engine components.