Power: 44 hp Date of manufacture : 1916 - 1920
Production Manufacturer: Leader (a part of Dayton-Dick) Type: Agricultural Crawler tractor Factory: Quincy, Illinois, USA Original price: $1,550 (1916 ) Leader 25-40 Power Drawbar (claimed): 25 hp 18.6 kW Belt (claimed): 40 hp 29.8 kW Leader 25-40 Engine Mechanical Chassis: half-track Steering: manual Cab: Open operator station. Transmission: 2-speed gear Dimensions & Tires Weight: 6000 lbs 2721 kg Full dimensions and tires ... Belt Pulley Diameter: 14 inches 35 cm Width: 7 inches 17 cm

Leader 9-15	Power: 16 hp	Date of manufacture : 0000 - 0000

Leader 12-18	Power: 20 hp	Date of manufacture : 1913 - 1915

Leader 15-25	Power: 27 hp	Date of manufacture : 0000 - 0000

Leader 25-40	Power: 44 hp	Date of manufacture : 1916 - 1920

Leader C 18-36	Power: 40 hp	Date of manufacture : 0000 - 0000

Leader D 25-40	Power: 44 hp	Date of manufacture : 0000 - 0000

Leader GU 16-32	Power: 35 hp	Date of manufacture : 1920 - 1923

Leader N 16-32	Power: 35 hp	Date of manufacture : 1919 - 1924