Integrally forged from high-strength steel and strengthened by quenching and tempering treatment, it boasts strong overall rigidity, torsion resistance and impact resistance. The working surface of the fork is finely ground with high dimensional accuracy and uniform fitting clearance, enabling smooth shifting without stagnation. Suitable for ZF heavy-duty truck transmission assembly, it copes with frequent shifting under long-distance heavy load and complex road conditions, resisting fatigue deformation and loosening dislocation. With excellent wear and corrosion resistance and original standard size, it can be directly replaced without modification, offering stable performance and long service life.