Bennett's HEAVY DUTY TRUCK SYSTEMS, 8th Edition, helps students gain the knowledge and skills needed to service and repair medium- and heavy-duty trucks. The text provides a strong foundation in electricity and electronics, powertrain, steering and suspension, brakes, wheel-ends, tires, VRMS and accessories systems as well as practical topics like servicing, safety, tools and preventive maintenance. This edition covers the latest ASE Education Foundation IMMR/TST/MST competencies and technology, including J1939 updates and access tools, lock-out tag-out compliance, PicoScope techniques, DIN wiring schematic navigation, ADAS and the five levels of semi- and fully autonomous trucks. With extensive review questions, over 1800 images and a standalone workbook with ASE Education Foundation task-oriented job sheets, this text is an ideal resource to prepare students for professional success.