The 2005 Ducati ST4 S is a distinguished sport-touring motorcycle, built upon Ducati's Italian heritage and known for its signature V-twin performance and exceptional handling. This model, produced between 2001 and 2005, features a liquid-cooled, 996 cc Testastretta V-twin engine with desmodromic valve actuation, delivering approximately 117 horsepower. It combines sporty capabilities with long-distance comfort, making it a compelling choice for riders seeking both performance and touring prowess. The ST4 S is equipped with a trellis frame, a 6-speed manual transmission, and a robust braking system including ABS, reflecting Ducati's commitment to engineering quality and rider engagement.

This comprehensive parts manual serves as an essential resource for owners, independent repair shops, and Ducati enthusiasts. It provides detailed coverage of the motorcycle from front to back, facilitating accurate part identification and ordering. The manual includes high-resolution diagrams and exploded views for clear visual referencing of components such as the engine, fuel system, electrical system, and chassis. Its purpose is to enable a thorough understanding and maintenance of the Ducati ST4 S, ensuring its optimal performance and longevity through precise part selection and workshop-level insights.