I have a Cat C-9 engine manual for the equipment side of the engine's use. I am sure it will be Great for the on highway side of this engine's use. It covers ALL of the areas listed as shown in the pictures and is Very detailed on the operating systems of each said system, and is in a protective 3 ring binder. It is FREE to Anybody who wants it, just pay the shipping USPS Priority, and You Must Have a Cat C-9 on your signature proving you have the engine in question. I have a C12 and it is of no use to me. Got it from a friend of mine who has been in the Construction Maintenance Industry for over 40 years. Over 80 pages of information well worth Knowing if you have this Very engine
