4179176 Original Excavator Hydraulic Pump Pin for Hitachi ZX200-5G

Part number 4179176 is a genuine pin (PIN) produced by Hitachi Construction Machinery Co., Ltd. in Japan. The support chain (chain rail link) system specifically designed for crawler excavators is usually a key hinge pin that connects the chain links, support wheels, or guide wheels. Therefore, it is mainly compatible with Hitachi ZX200-5G, ZX200-3 and other ZX200 series tracked medium-sized excavators, and is universal on the same platform models with the same support chain structure. As the core structural connector of the original factory, its diameter, length, heat treatment hardness and chain joint hole are precisely matched

This product is a cylindrical support chain special pin made of precision processed high carbon alloy steel. It is usually treated with surface phosphating or blackening, presenting a dark appearance, with high hardness and excellent wear resistance and shear strength. The packaging specification is 2 pieces per set, which facilitates paired replacement of corresponding connection points on a single chassis side. Its core design aims to withstand the enormous impact and shear force of the track system during excavator movement. The identification of "Support Chain" clearly indicates its optimized characteristics for harsh chassis conditions (such as mud, sand, and high impact). Compared with universal axles, it has higher bending strength and surface wear resistance, and is a key basic component to ensure the stability, smoothness, and long-term service life of the chassis.

Inspection cycle: Check the tightness and abnormal noise of the track links every 250 working hours. If there is any abnormal looseness, check the wear of the pin shaft. Replacement timing: When there is obvious step like wear, bending, or excessive fit clearance on the surface of the pin shaft, all pin shafts related to the connection points must be replaced in pairs or as a whole. Attention: Keep clean during operation; Rust prevention treatment is required during storage.