The Cat Motor Grader Circle Drive Worm Gear by ITR Italy is a high-quality replacement part designed specifically for Caterpillar motor graders like the Cat-120K, Cat-120K2, Cat-140, and Cat-120H models. Made from a special alloy, this worm gear delivers exceptional durability and can handle the demanding conditions of heavy-duty grading work. With part numbers 323-8674* for Cat-120K and 6G-5533* for Cat-120H, it provides a precise and economical alternative to OEM parts, ensuring seamless fitment and reliable operation in the circle drive system. Weighing approximately 5 kg, it’s easy to install and handle during maintenance. Engineered for optimal performance, this worm gear enhances circle drive movement, supporting smooth operation and improved grader control, making it ideal for rigorous construction applications.