This is a high-quality aftermarket connecting rod for CAT E303 mini excavator engines, professionally manufactured by Tianjin Longdong. Adopting premium 42CrMo/40Cr forged steel as the core material, the product undergoes integral precision forging, CNC high-precision machining and strict vacuum heat treatment, featuring high tensile strength, excellent impact resistance and outstanding fatigue durability.We support full customization of various connecting rod models and size specifications to satisfy different equipment and customer demands.