CAT 3304 3306 manuals and spec sheets. Available are the disassembly and assembly manual 131 pages, for the 3306B the 474 page service manual, a specifications manual 68 pages, plus other manualsand spec sheets at Barrington Diesel Club. In addition wehave links to our 3304and 3306 key specs and essential bolt torques for these engines, plus links to dozens of other CAT engines.