This manual covers the International HS 2.8L engine, a robust diesel powerplant developed by International Harvester, later Navistar. Likely produced from the late 1980s through the 1990s, this engine family was a cornerstone for various International vehicles, including light trucks, commercial vans, and utility vehicles. Known for their durability and strong low-end torque, these engines are characterized by their cast-iron block construction and efficient fuel systems, designed to meet evolving performance and emissions standards of their era. The HS 2.8L represents a lineage of reliable diesel technology, engineered for demanding applications where longevity and consistent power delivery are paramount.

This comprehensive Workshop Service Manual (WSM) provides in-depth technical information for the International HS 2.8L engine. It details complete engine mechanical procedures, including disassembly, assembly, and inspection of all internal components. Coverage extends to the engine's electrical system, fuel injection, cooling, lubrication, and emission control systems. The manual includes step-by-step repair and rebuilding instructions, routine maintenance schedules, and advanced diagnostic procedures, complete with wiring diagrams and torque specifications. This resource is designed for professional automotive technicians, fleet maintenance personnel, and serious DIY mechanics, offering the essential knowledge to ensure accurate diagnosis, efficient repair, and optimal performance of the HS 2.8L engine.