THIS IS A CAT D9 SERVICE MANUAL, THIS IS FOR S/N 66A1-UP. THESE HAVE ALOT OF INFORMATION , SPECS, ADJUSTMENTS, REPAIRS, SERVICE, GOOD CONDITION, BUT USED AND OLD, THERE IS SOME PAGES IN THE VERY BACK STUCK TOGETHER JUST IN THE TRACK FRAMES, THE ENGINE, TRANY AND REST ARE GOOD. 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.The item "CATERPILLAR CAT D9 CRAWLER DOZER BULL SERVICE MANUAL 66A" is in sale since Tuesday, April 16, 2019. 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 Eugene, Oregon. This item can be shipped worldwide.