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Sprockets

Caterpillar Sprockets: The Driving Force in Undercarriage Performance

Caterpillar undercarriage sprockets are precision-engineered drive wheels that engage with the track link assemblies to transmit engine power into forward (or reverse) motion for your tracked equipment bulldozers, excavators, track loaders, and more. Each sprocket is machined from deep-hardening, wear-resistant steel, with precisely spaced teeth to match the track bushings, ensuring efficient power transfer and smooth engagement with the track chain. The robust construction helps minimize wear on the sprocket and track chain while maintaining traction and stability, even in the toughest environments.

Caterpillar offers sprockets for a wide range of models, including 235, D4, D6, D8, D9, 330, E320, and 120 series, with each sprocket designed for a particular type of track and machine application. Some models use bolt-on segmented sprockets, which simplify replacement and reduce downtime by allowing segments to be changed without removing the entire track group. Regular inspection and timely replacement of worn sprockets are essential to prevent accelerated track wear, bushing damage, and possible track derailment.
Propel Parts supplies high-quality replacement sprockets, with clear compatibility information and fast shipping, so you can maintain your equipment’s performance and minimize downtime.

Our sprockets provide a high resistance and durability even under the toughest circumstances. They are of extraordinary quality due to the perfect combination of high quality cast steel and an advanced heat treatment technology.

Frequently Asked Questions (FAQs)

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A sprocket transfers engine power to the track chain, propelling the machine forward or backward as the teeth engage with the track bushings.

Replace if you notice excessive tooth wear, uneven wear on track bushings, track slipping, or a reduction in machine performance. Regular inspection during undercarriage maintenance is recommended.

No, each sprocket is designed for specific machine models and track sizes. Always match your part number and machine serial number for proper fit. If you need help, the Propel Parts Technical Team is available to help you find the right sprocket for your equipment.

Genuine and high-quality replacement sprockets are engineered to exacting standards for strength, wear resistance, and fit, helping prevent early sprocket and track wear and keeping your machine running reliably.

With mechanical experience and the right tools, you can replace sprockets. Always follow Caterpillar’s installation and torque procedures for safety and best results.

Propel Parts offers a wide selection of premium replacement sprockets for many CAT models. In addition, Propel Parts provides expert advice and fast shipping for quick repairs.