International Harvester 3688

The International Harvester 3688 is a 2WD/4WD row-crop tractor that was manufactured by International Harvester in Rock Island, Illinois, USA from 1981 to 1985. Equipped with a 6-cylinder, 436 ci (7.1 L) International Harvester D436 diesel engine, the 3688 offers liquid cooling, a natural aspiration system, and a power output of 113 hp at a rated RPM of 2400. The tractor uses a partial power shift transmission with 16 forward and 8 reverse gears, alongside power steering and hydraulic wet disc brakes. The standard cab includes heating and A/C, providing comfort in various conditions. With a 26 qt coolant capacity, an electrical starting system, and a dual dry element air cleaner, the 3688 is designed to be reliable and efficient in various farming applications. Operating weight is 13200 lbs, and it sits on a 105-inch wheelbase with a three-point hitch system at the rear. The 3688 tractor's design merges practicality with power, suitable for a range of row-crop farming tasks.