This comprehensive Komatsu D31EX, PX-21, D37EX, PX-21 Dozer Service Shop Repair Manual, tailored for models equipped with the 4D102E-2 series engine, provides a wealth of detailed servicing instructions. It serves as your ultimate guide for repair, maintenance, and troubleshooting, offering complete step-by-step information to ensure optimal performance and longevity of your Komatsu dozer. This manual empowers you with the knowledge to tackle any repair or maintenance task confidently, minimizing downtime and maximizing efficiency.

The Komatsu D31EX Dozer is a powerful and versatile crawler tractor designed for a wide range of earthmoving tasks. Part of Komatsu's acclaimed D-Series, the D31EX is known for its robust construction, high performance, and fuel efficiency. Powered by a Komatsu SAA4D107E-2 engine, the D31EX boasts a net power output of 165 horsepower, enabling it to tackle demanding applications like land clearing, grading, and site preparation. This dozer boasts a durable undercarriage with a long track shoe life, contributing to its reliability and overall performance. The D31EX also features a spacious operator station designed for maximum comfort and visibility, enhancing operator productivity and reducing fatigue. Complementing the Komatsu D31EX is the D37EX, another member of the D-Series. While sharing many design elements with its sibling, the D37EX is equipped with a larger and more powerful Komatsu SAA4D107E-2 engine, producing 190 horsepower. This slight increase in power makes the D37EX ideal for handling heavier workloads and larger projects. Both the D31EX and D37EX are available in a variety of configurations, including blade types, undercarriage options, and optional accessories, allowing for customization to meet specific job requirements. The Komatsu D31EX and D37EX have consistently proven themselves to be reliable and efficient earthmoving machines, earning a reputation for durability and high performance in a variety of industries.