This stabilizer nut secures the telescopic suspension device (TUZ) linkage on the three-point hitch of the host tractor. It threads onto the stabilizer bar, locking the assembly at the selected width setting to prevent unintended movement during implement operation. A loose or worn nut allows the stabilizer to shift, causing implement drift and uneven draft loads. Manufactured by AGCO, the nut uses the same thread form as the original assembly, so it engages the stabilizer threads without cross-threading and requires no additional shimming or adapters. On installation, tighten the nut to the torque specified in the tractor service manual.