This is an ORIGINAL Caterpillar D379, D398, & D399 Industrial & Marine Diesel Engine Service Repair Manual (1981 printing, serial numbers are on the cover). This manual has super illustrations as well as having in-depth service, repair, tear-down, rebuild, and specification information for these tough CAT engines. The condition of the cover is very good with light soiling, but has NO tears or tatters. The spline is tight and intact with NO loose or missing pages. This is complete with over 400 perfect pages. Looks nice. The overall condition of this manual is FINE++. Buyer agrees to pay $FREE for S & H. Thanks for viewing...........Triple K