Detroit Diesel

Downloadable manuals for Detroit engines and components, DDEC electronic controls and more. Save time and money by downloading a high quality PDF manual to your computer, smartphone or tablet.

  • Service/repair/shop manual – covers mechanical disassembly/assembly procedures and basic troubleshooting.
  • Troubleshooting manual – covers the electronic control system including codes.
  • Wiring diagram – schematics for the engine.