This steering cylinder sealing ring sits between the cylinder housing and the piston rod on the front axle of the host tractor. Its function is to contain hydraulic pressure within the steering cylinder, preventing fluid leakage past the rod during steering movements. A worn or hardened ring allows pressurized oil to bypass the piston, which reduces steering response and can cause erratic wheel movement. The ring is manufactured to the same cross-section and material specification as the original assembly, so it seats fully in the groove without requiring shimming or modification. On installation, ensure the groove is clean and free of burrs, and lubricate the ring with clean hydraulic fluid before assembly.