AZ9719413004 steering tie rod arm is a key steering component matched for Sinotruk Howo 371 AC16 axle heavy trucks. It is installed on the steering knuckle, acting as the force transfer arm between the steering knuckle and the steering tie rod. It converts the pulling force from the tie rod into the swing motion of the steering knuckle to realize wheel deflection and vehicle steering control. The product is forged from high-quality alloy steel and processed by quenching and tempering heat treatment. It has high structural strength, good toughness and strong impact resistance, capable of enduring periodic impact loads generated during heavy load driving, frequent steering and bumpy road conditions. Each tie rod arm undergoes strict dimensional inspection, hardness testing and nondestructive crack detection before delivery, avoiding fracture and deformation during operation. It solves steering failure caused by bent or cracked original arm and ensures accurate steering geometry. It is an essential spare part for AC16 axle steering system overhaul. We maintain sufficient inventory and stable bulk supply for repair workshops, fleet operators, auto spare parts dealers and global cross-border export customers.