Factory service manual has step by step procedures. The item "Caterpillar D3 Crawler Tractor factory service manual OEM 6N1 79U1 Up OEM" is in sale since Friday, May 10, 2019. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Heavy Equipment Manuals & Books". The seller is "herbis99" and is located in Stanley, North Dakota. This item can be shipped to United States, Canada, United Kingdom, Finland, Portugal, Sweden, Belgium, Ireland, Netherlands, Spain, Italy, Germany, Austria, Switzerland, Norway, Iceland, Luxembourg.