The truck is finished in red over black upholstery, and power comes from a Lycoming inline-four paired with a three-speed manual transmission. Equipment includes an electric starter, rear drum brakes, electric lights, a split-folding windshield, and a wood cargo bed. Service performed in 2024 included the installation of a replacement carburetor, starter switch, and battery. International Harvester debuted the Model S âSpeedâ trucks for 1921. Available with four- or six-cylinder engines, the trucks came standard with an electric starter and lights as well as pneumatic tires. Body-color two-piece wheels are mounted with 6. 00â20 Firestone bias-ply tires. The S-24 rode on a 130â³ wheelbase and featured semi-elliptical leaf springs at all four corners. Stopping power is handled by rear drum brakes. The cab features a bench seat trimmed in black upholstery.