Caterpillar 7T5420 – 157-3106 – 157-3107 Boom Parts

Caterpillar 7T5420, 157-3106 and 157-3107 coded parts are high-strength pivot, connection, and carrier boom elements used in the boom systems of Caterpillar construction machines. These parts are produced to enhance the machine’s stability, durability, and operational efficiency by serving in critical load transfer areas between the boom, arm, and other moving components.

Manufactured from heavy-duty steel alloy, these boom parts are designed to withstand continuous impact, high tension, intense vibration, and harsh field conditions. They strengthen the machine’s moving connection points in heavy working environments such as mining, excavation, construction, and road building, reduce the risk of deformation, and provide a long working life.

Since these parts are fully compatible with Caterpillar’s original measurement standards, they are easy to install and do not require additional modifications. By optimizing the load transfer between the boom and the chassis or arm, they enhance the machine’s performance, extend maintenance intervals, and provide safety during operation.

While the 7T5420 model primarily functions as a general boom connection block, the 157-3106 and 157-3107 models serve as pivot and connection elements. Since all these parts are produced with high-precision machining, they offer low wear at moving points, high stability, and maximum durability.

These products are an ideal spare part solution for professional users who need a reinforced structure in boom connections on Caterpillar machines.