The McCormick 3684931M2 Piston is a genuine OEM engine component designed for various McCormick tractor models, including the C, CX, MC, MTX, X4, X5, X6, X7, XTX, and ZTX Series. This high-quality piston features a bore diameter of 95 mm and an overall height of 110 mm. It is equipped with a 35 mm diameter pin, 76 mm in length, and has specific ring grooves configured as 3 x 2.5 mm and 1 x 4 mm. The combustion chamber has a diameter of 50 mm and a depth of 17.5 mm, ensuring optimal engine performance and reliability. This piston is crucial for maintaining the integrity and efficiency of your McCormick tractor's engine.