This is an ORIGINAL Navistar International 7.3L Diesel Engine Truck Diagnostic and Service Manual (June 1991 printing). This manual contains super illustrations as well as having in-depth service, repair, rebuild (separate fuel pump section in the back), tear-down, and diagnostic troubleshooting information for these tough International engines. The cover is in good shape with some soiling, but has NO tears or tatters. The spline is tight and intact with NO loose or missing pages. This manual contains about 300 clean pages and is in VERY GOOD overall condition. FREE S & H.