Universal Radiator Diagram - buyautoparts Universal Radiator Diagram . The coolant system in modern cars is a simplistic idea that has evolved over the years. Understanding how it works is the first step to being able to fix issues that may arise. The figure below depicts a simple break down of a radiator on an older model vehicle in which the basic parts of the unit can be seen and Schematic Diagram – Page 2 – Circuit Wiring Diagrams Radiators are heat exchangers used to transfer thermal energy from one medium to another for the purpose of cooling and heating. The following schematic diagram shows detail of 2003 Suzuki DL1000 Radiator and its Parts Components which consist of 1. radiator assembly, 2. fan assembly, 3. cushion, 4. cushion, 5. spacer, 6. bolt (6×20), 7. shield, radiator heat, 8. bolt.