1. The Detroit Diesel website: The Detroit Diesel website has a wealth of information available on its engines, including wiring diagrams. To find the wiring diagram you need, simply go to the Detroit Diesel website and enter the model and serial number of your engine in the search bar. Once you have found the engine page, click on the "Wiring Diagrams" tab to view the available diagrams.
2. Third-party websites: There are several third-party websites that offer wiring diagrams for Detroit diesel engines. A simple Google search will reveal several websites that offer these diagrams. However, it is important to note that not all of these websites are reliable. Make sure to only download wiring diagrams from reputable websites.
3. Local libraries: Some local libraries have books and manuals that contain wiring diagrams for Detroit diesel engines. Check with your local library to see if they have any resources available.
Once you have found the wiring diagram you need, it is important to read and understand it carefully before attempting to work on your engine. If you are not comfortable reading and understanding wiring diagrams, it is best to consult with a qualified mechanic or electrician.