Buy International Harvester 674 Tractor manuals and get Free Shipping. OEM Parts, Owners, Service and Repair Manuals are available.. International Harvester tractor manuals . Clymer International Harvester manuals are written specifically for the464, 484, 574, 584, 674, 766, 786, 826, 886 . The Operators Manual for International Harvester 674 Tractor contains 102 pages of helpful and technical information. This manual is a must have for any International Harvester owner.. This operator's manual is for the International 674 tractor. Over 100 pages covering operating, trouble shooting, and more. Information on: auxiliary valve and remote, cylinders, connecting hoses to junction. International Harvester 454 474 475 574 674 Tractor Service Repair Manual This International Harvester 454 474 475 574 674 Tractor Full Service Repair Manual ve. IH International Harvester 674 Workshop Repair Service Manual PDF Download This professional technical manual contains service, DOWNLOAD.