The McCormick 6676152A1 is a genuine OEM piston ring designed for a wide range of McCormick agricultural tractors. This essential engine component helps maintain proper cylinder compression and oil control, crucial for efficient engine operation and longevity. With a diameter of 108 mm and a thickness of 3 mm, this piston ring is engineered to precise specifications for models including the MC, MTX, X6, X7, and X8 series, ensuring a perfect fit and reliable performance.