The piston pin is a cylindrical pin used to connect the piston and the connecting rod. The middle part of the piston pin passes through the small head hole of the connecting rod to transmit the force of the piston or the connecting rod. The piston pin produced by Shandong Liou Import and Export Co., Ltd. is made of high-quality 20Cr alloy steel and is hollow in design to reduce weight. The product has sufficient rigidity, strength and wear resistance. Its outer surface is carburized and hardened and finely ground and polished to improve the surface hardness and wear resistance, ensuring higher strength and impact toughness. It is mainly suitable for engines such as Cummins, Jiefang, WP10 EIRO 3, WD615, EURO2, etc. The piston pin is subjected to large periodic impact loads under high temperature conditions, and the lubrication condition is poor due to the small swing angle in the pin hole. Therefore, the piston pin needs to have high rigidity, strength and wear resistance. At the same time, there should be an appropriate gap and good surface quality between the piston pin and the pin hole to avoid damage caused by bending deformation. To ensure quality, this product provides a one-year warranty period and is widely used in engine systems of various heavy trucks, light trucks, buses and engineering machinery.