Caterpillar 193-7091 Track Sprocket Assembly

Track drive sprocket 193-7091 engineered for Caterpillar 303 series mini hydraulic excavators including 303, 303CR, 303E CR, and 303ECR models. Manufactured from forged or cast 40Mn alloy steel with induction-hardened teeth surfaces reaching HRC 50-60 for extended wear resistance in abrasive undercarriage applications. Features 9-bolt mounting pattern compatible with OEM final drive hubs. Direct replacement for Caterpillar OEM part number 193-7091. Suitable for machines powered by Caterpillar C1.3 and Mitsubishi S3L2 diesel engines. Unit weight approximately 7 kg. Designed to meet or exceed OEM specifications for pitch diameter, tooth profile, and bolt circle dimensions ensuring proper track engagement and tension. Material composition utilizes high-carbon manganese steel for core toughness with surface hardening to withstand cyclic impact loads and abrasive soil conditions. Quality validated under ISO 9001 manufacturing processes. Cross-references include CA1937091 and various aftermarket supplier numbers.