This manual covers the Thomas 137 Skid Steer Loader, designed for versatile operation and built with robust engineering for reliability. This model, identified by serial number prefixes LE011000 onwards, features a diesel engine and a hydrostatic four-wheel-drive transmission, making it suitable for a wide range of demanding tasks. Its design prioritizes operator safety with standard ROPS and FOPS, and intuitive hand controls for steering, lift, and tilt operations ensure efficient performance on any job site. The purpose of this model-specific Parts Manual is to provide comprehensive information for identifying and ordering components. It details various aspects of the Skid Steer Loader, including engine specifications, transmission systems, physical dimensions, and fluid requirements. This manual is an essential resource for owners, maintenance personnel, and technicians, enabling them to effectively service, repair, and maintain the Thomas 137 Skid Steer Loader to ensure its optimal performance and longevity.