The wheel pin N 55015 is a precision-machined fastening and positioning element used within rotating or linkage assemblies of the Sulzer ASL25 engine. Engineered for high shear strength and resistance to cyclic loading, this pin ensures secure alignment and stable connection between moving components. Its accurate geometry and hardened surface reduce wear and maintain dimensional stability under continuous mechanical stress. By preserving proper alignment and minimizing play within the assembly, N 55015 contributes directly to smooth mechanical operation and extended service life.