Caterpillar 3406 Engine Manuals
Service repair manuals for the Caterpillar 3406 diesel engine family, including the 3406C and 3406E, covering truck, industrial, marine and generator set applications. Each manual is listed by serial number prefix, so you can match it to the information plate on your engine. Not sure which prefix you have? Use our Find My Manual tool. Every manual is available printed (ships in 1 business day, free USPS Media Mail in the USA) or as a PDF.