This piston is the hydraulic cylinder component that extends and retracts the lower links of the three-point hitch. It converts hydraulic pressure into linear force to raise and lower mounted implements. The piston moves inside the lift cylinder, with its rod end connecting to the hitch linkage; seal wear on the piston face allows internal leakage, causing the hitch to drift downward under load. As an original-manufacturer component, the piston is machined to the same surface finish and groove dimensions as the original assembly, ensuring the piston seals seat correctly and maintain holding pressure. When replacing, inspect the cylinder bore for scoring and replace all seals in the lift cylinder.