McCormick-Deering Super WD-9

The McCormick-Deering Super WD-9 is a standard-tread tractor best known for its robust construction and versatility on the farm. It features a 4x2 2WD chassis and is powered by a 4-cylinder International Harvester diesel engine that is naturally aspirated with a displacement of 349.9 cubic inches. The engine is liquid-cooled and uses a vertical I-head valve configuration, with a high compression ratio of 15.6:1, and is rated for 1500 RPM. Starting the engine relies on a unique gasoline start system with a 12-volt starter. The tractor's transmission comprises a 5-speed forward gear and a single reverse gear setup, operated by a dry disc clutch. While the McCormick-Deering Super WD-9's hitch category is specified as Category 3, details about the hitch type and position remain unspecified. It has manual steering, and details regarding the hydraulic system and PTO are not provided. This tractor was designed to perform a range of tasks with reliability and ease of maintenance in mind, making it a valuable asset to farmers of its era.