The Komatsu WA120L-3 Wheel Loader Parts Catalogue Manual is a comprehensive guide designed to assist with the maintenance and repair of your Komatsu WA120L-3 wheel loader. This manual covers a wide range of components, enabling you to identify and order the correct parts for your machine. It includes detailed information on the following systems: * **Engine & Related Parts:** Discover a detailed breakdown of the S4D102E-1N-2L engine (serial number 26200163 and up) and its associated components. * **Cooling System:** Gain insights into the cooling system's design and operation, including essential parts like radiators, fans, and hoses. * **Fuel Tank & Related Parts:** Understand the fuel system, including the tank, lines, filters, and pumps. * **Electrical System:** Explore the electrical wiring diagrams, component descriptions, and troubleshooting tips for the electrical system. * **Transmission:** Get familiar with the transmission components, their functions, and maintenance procedures. * **Hydraulic System:** Learn about the intricate hydraulic system, including pumps, valves, cylinders, and hoses. * **Main/Revolving Frame & Related Parts:** Explore the structure and components of the main frame and revolving frame, including bearings, gears, and seals. * **Operator's Compartment & Control System:** Understand the operator's controls, displays, and safety features. * **Guard:** Gain insights into the guards and safety features designed to protect the operator and components. * **Suspension & Wheel Related Parts:** Learn about the suspension system, axles, wheels, and tires. * **Work Equipment:** Find detailed information on the work equipment, including buckets, forks, and attachments. * **Marks & Plates:** Identify markings and plates on your machine for proper component identification. * **Service Kit & Component Parts:** Access information on service kits and individual component parts for specific repairs and maintenance. This manual serves as an invaluable resource for anyone working with a Komatsu WA120L-3 wheel loader, providing detailed information to facilitate repairs, maintenance, and understanding of your machine's various systems.

The Komatsu WA120L-3 is a robust and powerful wheel loader designed for heavy-duty applications in North America. This machine boasts a powerful engine, a spacious and ergonomic cab, and a versatile range of attachments, making it suitable for a wide array of tasks, including material handling, loading and unloading trucks, and general construction work. The WA120L-3 offers a high level of productivity due to its durable design and exceptional lifting capacity. The loader is equipped with a powerful engine that delivers ample power for demanding operations, while its robust construction ensures long-lasting performance even in harsh environments. The advanced hydraulic system provides smooth and responsive operation, allowing for precise control and efficient material handling. The spacious and comfortable operator cab is designed to maximize operator comfort and productivity. It features a wide range of ergonomic controls and a clear view of the work area, ensuring operator safety and efficiency. The Komatsu WA120L-3 is also designed with safety in mind. Features such as the ROPS/FOPS certified cab, the comprehensive safety system, and the ergonomic controls help to minimize operator risk and ensure a safe working environment. The loader's versatility is further enhanced by its compatibility with a wide range of attachments, including buckets, forks, and grapple attachments, allowing for a variety of tasks to be performed with the same machine. The Komatsu WA120L-3 is a reliable and durable machine that is built to withstand the rigors of demanding applications. Its advanced features, comfortable operator environment, and wide range of attachments make it an ideal choice for businesses and contractors seeking a high-performance and versatile wheel loader for their operations.