THIS IS A CAT D250B D300B ARTICULATED TRUCK SERVICE MANUAL, S/N 5WD 4SD , LOTS OF INFORMATION! ALSO I BOUGHT A LOCAL CASE DEALER OUT, I BOUGHT ALL THE MANUALS, THANK YOU VERY MUCH!!!!!!!!!!!!!Be sure to add me to your favorites list. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Heavy Equipment Manuals & Books". The seller is "theservicemanualguy" and is located in this country: US. This item can be shipped worldwide.