The Komatsu 42170H2A10 is a genuine OEM screw designed for various Komatsu PC series hydraulic excavators. This essential fastening component ensures secure assembly and reliable operation in demanding construction and mining environments. Compatible with a wide range of models including PC200-8, PC200LC-8, PC220-8, PC220LC-8, PC270-8, PC270LC-8, PC290-8, PC290LC-8, PC300-8, PC300LC-8, PC350-8, PC350LC-8, PC400-8, PC400LC-8, PC450-8, PC450LC-8, PC490-10, PC490LC-10, PC500LC-10, PC550LC-10, PC600-8, PC600LC-8, PC650-8, PC650LC-8, PC700-8, PC700LC-8, PC800-8, PC800LC-8, PC1250-8, PC1250SP-8, PC1250LC-8, PC1250SP-8, PC1250-11, PC1250SP-11, PC1250LC-11, and PC1250SP-11. Using genuine Komatsu parts helps maintain machine performance, integrity, and longevity.