THIS IS A CUMMINS NH AND NT 855 ENGINE REPAIR MANUAL BOOK, 1978, THANKS , GREAT BOOK!!! Be sure to add me to your favorites list. Check out my other items. Track Page Views With. Auctiva’s FREE Counter. The item “CUMMINS NH NT 855 SERIES ENGINE SHOP MANUAL DIESEL ENGINE SHOP” is in sale since Saturday, April 27, 2019. This item is in the category “eBay Motors\Parts & Accessories\Manuals & Literature\Other Repair Manuals & Literature”. The seller is “theservicemanualguy” and is located in Boise, Idaho. This item can be shipped worldwide.