The Komatsu D155A bulldozer sprocket is a critical undercarriage component that transfers driving force to the track chain and helps keep the crawler system moving smoothly. Designed for heavy-duty earthmoving, mining, quarrying, and construction applications, this replacement sprocket is built to withstand demanding operating conditions.

Manufactured from high-strength alloy steel, the sprocket features a robust structure designed to handle high torque, repeated impact, heavy loads, and abrasive working environments. Precision machining ensures accurate tooth geometry and proper engagement with the track chain, while controlled heat treatment improves surface hardness, wear resistance, and structural durability.

A properly matched sprocket helps maintain efficient power transmission between the final drive and track chain. Worn sprocket teeth can affect track engagement and accelerate wear on the track chain and related undercarriage components. Replacing a worn sprocket in time can help maintain stable crawler performance and reduce unnecessary maintenance costs.

Our Komatsu D155A sprockets undergo strict quality control throughout production. We inspect tooth dimensions, mounting areas, machining accuracy, surface condition, and hardness before shipment. This helps ensure consistent fit and dependable performance in replacement applications.

This sprocket is designed for Komatsu D155A bulldozer applications, with exact compatibility depending on the machine version, serial number, and track configuration. Customers should confirm the machine details and OEM reference before ordering.