Ih 1066 Wiring Diagram. Farmall 1066 tractor parts manual. 15 images about 1066 international wiring diagram : Wiring Manual PDF 1066 International Wiring Diagram from wiringmanualpdf.blogspot.com International harvester 1066 tractor full service repair manual. If replacing them, take pictures then use wire ties to hold the loom together. 1066 cab wiring 1066 cab wiring.