Check the listing for details. 1981 CATERPILLAR "D399 DIESEL ENGINE GENERATOR SET" SPECIFICATIONS BROCHURE. Condition: Used. Listed at 27.55 USD. Here we have up for sale an ORIGINAL 1981 Caterpillar D399 Diesel Engines Generator Set brochure. This 1-sheet obscure brochure has very detailed information about the features, options, and specifications for these classic CAT diesels. This is in very good shape with NO tears or tatters and is in VERY GOOD overall condition. We have acquired a massive 400+ Caterpillar brochure stash from a one time CAT dealers' estate. Please check out all of our other CAT auctions as there are some rare, dealer-only pieces. These date from the 1930's-1980's, are mostly in fantastic shape, and will all sell at AUCTION (some people have forgot what Ebay started from). These are all starting at $19.95 with NO reserve & FREE S & H. International buyers will only pay one shipping fee, no matter how many you buy. Happy Holidays and Happy New Year! Thanks for viewing.............Triple K