Here we have a complete original CAT Caterpillar 641B, 651B, 650B & 660B Wheel Tractor Scraper Service Manual for sale. This Service Manual covers the following serial numbers. Good used condition with some wear on the cover and inside. All pages are included and readable.The item "CAT Caterpillar 641 651 650 660 Tractor Scraper Repair Service Manual shop owner" is in sale since Friday, November 16, 2018. This item is in the category "Industrial\Heavy Machinery\Other". The seller is "oem_cat_manuals" and is located in Portland, Oregon. This item can be shipped worldwide.