The John Deere AL157596 is a genuine OEM idler designed for various John Deere excavators and compact track loaders. This critical undercarriage component ensures proper track tension and smooth operation, significantly reducing wear on other track system parts. Manufactured to John Deere's stringent quality standards, it provides exceptional durability and reliable performance in demanding construction and agricultural environments. It is compatible with a wide range of models, including 130G, 135G, 160G LC, 180G LC, 210G LC, 245G LC, 250G LC, 290G LC, 300G LC, 345G LC, 350G LC, 380G LC excavators, and 331G, 333G compact track loaders.