Caterpillar 3041870 Track Sprocket Assembly

The 3041870 track sprocket is a critical undercarriage component designed for Caterpillar compact track loaders and multi-terrain loaders. It features 15 induction-hardened teeth and a 12-bolt hole mounting pattern to ensure positive engagement with the track chain and secure attachment to the drive motor hub. Manufactured from 50Mn/40Mn2 alloy steel, the sprocket undergoes precision casting or forging followed by heat treatment to achieve high surface hardness and core toughness, resisting abrasive wear and impact loads in severe applications. This sprocket replaces OEM part numbers 304-1870, 601-3153, and CA3041870. It serves as a direct fit for the drive wheel position on the final drive assembly. Cross-reference interchange includes aftermarket numbers such as 20117279 and VPI V3041870V. The component weighs approximately 15 kg with an inside diameter of 8.625 inches (219 mm). Compatible machines utilize Caterpillar C2.2, C3.3B, and C3.4 engines. Regular inspection of tooth profile and bolt torque is recommended during track maintenance intervals to maximize undercarriage life.