Caterpillar Spider & Bearing Assembly | Part 5T-8739

Maintain the drivetrain integrity of your heavy machinery with the Spider and Bearing Assembly (Part No. 5T-8739). Also referred to as a Universal Joint Spider, this component is a critical link in the power train, responsible for transferring torque between drive shafts while allowing for angular movement.

Specifically engineered for Caterpillar mid-sized equipment, this assembly is a primary replacement part for track-type tractors, motor graders, and wheel loaders. Built to withstand the high-torque loads and constant rotational stress of heavy-duty earthmoving, this spider joint ensures smooth power transmission and reduces vibration throughout the driveline.