This manual covers the Dyna motorcycle, specifically for the 2003 model year. The Dyna platform, known for its rubber-mounted V-twin engine and versatile cruiser styling, encompasses several sub-models including the FXD, FXDL (Low Rider), FXDX (Super Glide Sport), FXDXT (T-Sport), and FXDWG (Wide Glide). These motorcycles are celebrated for their iconic American V-twin performance, customizable nature, and the strong brand loyalty associated with the marque. The 88 cubic inch (1449cc) air-cooled Evolution V-twin engine, paired with a 5-speed transmission and belt drive, provides a distinctive riding experience that appeals to a wide range of enthusiasts. This comprehensive Service Repair Manual provides detailed guidance for the complete service, repair, and maintenance of your 2003 Dyna. It covers all essential systems, including the powertrain, chassis, brakes, and electrical components, offering step-by-step instructions for routine maintenance tasks, complex repairs, and full component overhauls. The manual also includes critical technical specifications, torque values, fluid requirements, and troubleshooting guidance to assist owners and professional technicians in maintaining the optimal performance and longevity of their motorcycle. With its detailed explanations and high-resolution diagrams, this manual serves as an indispensable resource for anyone involved in the care of a Dyna.