Tractor wiring diagrams are available on Small-engines.com, Cngco.com and Myfordtractors.com, as of 2016. Small-engines.com illustrates a basic tractor wiring diagram while Cngco.com and Myfordtractors.com illustrate Farmall and Ford tractor wiring diagrams respectively.
Small-engines.com's basic tractor diagram provides readers with an idea of what a basic tractor looks like. The site explains how the components work together and how they affect each other when the truck is in operation. Cngco.com contains links to PDF diagrams of most Farmall tractor series. Users must download the diagrams to read them. On the Myfordtractors.com, users can right-click on any diagram and select Save As from the drop-down menu to save it on their computer.