Prepare for your future career with HEAVY DUTY TRUCK SYSTEMS, 6E! This comprehensive best-selling introduction to servicing medium- and heavy-duty trucks helps you develop a strong foundation in electricity and electronics, power train, steering and suspension, brakes, and accessories systems and presents introductory material on servicing, safety, tools, and preventive maintenance. You'll also find full coverage of NATEF competencies and the latest technology, including 2014 J1939 updates and access tools, Wingman radar, CMS, and Allison TC10 transmissions (introduced in 2013). You will master key topics and servicing procedures with extensive sets of review questions; over 1700 full color photographs and pieces of art; and an accompanying workbook that provides additional review material, Internet research exercises, and NATEF task-oriented job sheets.