Sections in Manual Include: Engine Attachments Lubrication & Maintenance. Covers 50Y 66Z 96Y 69Z 29Z 72Z.The item "Caterpillar Cat 3508 3512 3516 Marine Engine Service Repair Manual 50Y 66Z 96Y" is in sale since Wednesday, February 01, 2017. This item is in the category "Business & Industrial\Heavy Equipment Parts & Accs\Manuals & Books". The seller is "5hunter" and is located in Dayton, Ohio. This item can be shipped worldwide.