| Manufacturer | McCormick-Deering |
| Price | - |
| Model | 10-20 |
| Equipment Type | Standard-Tread Tractors |
| Factory |
NEBRASKA TRACTOR TEST 95
| Description | Kerosene 3-speed 2WD/September 25 - October 3, 1923/Link: Nebraska Tractor Test 95 file/Drawbar performance |
| Belt power (max) | 21.84 hp/16.3 kW |
| Belt fuel use (max) | 2.3 gal/hour/8.7 l/hour |
| Max power | 15.54 hp/11.6 kW |
| Max pull | 2,640 lbs/1197 kg |
NEBRASKA TRACTOR TEST 142
| Description | Kerosene 3-speed 2WD/October 3 - 8, 1927/Link: Nebraska Tractor Test 142 file/Drawbar performance |
| Belt power (max) | 24.8 hp/18.5 kW |
| Belt fuel use (max) | 2.7 gal/hour/10.2 l/hour |
| Max power | 19.60 hp/14.6 kW |
| Max pull | 2,955 lbs/1340 kg |
MCCORMICK-DEERING 10-20 POWER
| Drawbar (claimed) | 10 hp/7.5 kW |
| Belt (claimed) | 20 hp/14.9 kW |
| Drawbar (tested) | 19.60 hp/14.6 kW |
| Belt (tested) | 24.8 hp/18.5 kW |
ENGINE DETAIL
The McCormick-Deering 10-20 tractor features a 283.7 ci (4.6 L) kerosene-powered 4-cylinder engine with a liquid-cooled valve-in-head design, optimizing thermal management for extended operation. With a bore and stroke of 4.25x5.00 inches (108 x 127 mm) and a rated RPM of 1000, this tractor balances torque and power delivery for effective fieldwork. A significant advantage is its efficient fuel utilization, though the reliance on kerosene may subject users to fluctuating fuel availability and cost.
| Description | International Harvester/kerosene/4-cylinder/liquid-cooled vertical, valve-in-head |
| Displacement | 283.7 ci/4.6 L |
| Bore/Stroke | 4.25x5.00 inches/108 x 127 mm |
| Rated RPM | 1000 |
| Coolant capacity | 36 qts/34.1 L |
MCCORMICK-DEERING 10-20 ENGINE
The McCormick-Deering 10-20, powered by a 4.6L 4-cylinder kerosene engine, offers efficient fuel usage with a primary tank capacity of 14.5 gallons, supplemented by a 0.75-gallon auxiliary tank for extended operations. Its design is optimized for cultivating tasks, but the reliance on kerosene may pose challenges in colder climates due to fuel viscosity issues. Ideal for small to medium-sized farms, this tractor combines reliability with cost-effective fuel management, though operators should consider potential starting difficulties in low temperatures.
| Description | International Harvester 4.6L 4-cyl kerosene |
| Fuel tank | 14.5 gal/54.9 L |
| Aux. fuel | 0.75 gal/2.8 L |
TRANSMISSION
The unsynchronized gear system in the McCormick-Deering 10-20 presents a challenge for operators, as shifting between gears requires precise timing and skill. This tractor features only 3 forward and 1 reverse gear, which may limit its versatility in certain farming tasks compared to competitors with more gear options. However, the dry disc clutch design offers durability and simplicity in maintenance, making it suitable for lighter agricultural applications.
| Type | unsynchronized gear |
| Gears | 3 forward and 1 reverse |
| Clutch | dry disc |
MECHANICAL
The McCormick-Deering 10-20 features a 4x2 2WD chassis, making it suitable for flat, dry terrain but potentially limited in traction on uneven or muddy surfaces. Its manual steering system offers simplicity and direct feedback, though it may require more effort for maneuvering compared to modern power-steering systems. The 3-speed unsynchronized transmission, while durable, may pose challenges in shifting smoothly, particularly under load, necessitating skilled operation for optimal performance.
| Chassis | 4x2 2WD |
| Steering | manual |
| Cab | Open operator station. |
| Transmission | 3-speed unsynchronized gear |
MCCORMICK-DEERING 10-20 TIRES
The McCormick-Deering 10-20 tractor features a lightweight design with 30x4.50 front wheels and robust 42x12 rear wheels, promoting maneuverability and stability in field operations. The steel construction enhances durability, but may increase overall weight, affecting traction in soft soil conditions. Optimal for small to medium-sized farms, this tractor excels in tilling and hauling but may struggle with intensive crop production due to limited horsepower.
| Ag front | 30x4.50 stel |
| Ag rear | 42x12 steel |
DIMENSIONS
| Length | 123 inches/312 cm |
| Width | 60 inches/152 cm |
| Height | 62 inches/157 cm |
| Weight | 3700 lbs/1678 kg |
DIMENSIONS & TIRES
The McCormick-Deering 10-20 tractor, weighing 3,700 lbs (1,678 kg), features wide rear tires (42x12) which enhance stability and traction, ideal for plowing or hauling. However, the narrow front tires (30x4.50) may limit steering agility in soft or uneven terrains, potentially creating challenges in maneuverability. Its design suits agricultural applications but may necessitate careful tire management for optimal performance across varied ground conditions.
| Weight | 3700 lbs/1678 kg |
| Front tire | 30x4.50 |
| Rear tire | 42x12 |
10-20 SERIAL NUMBERS
| Location | Below the tractor's fuel tank. |
| 1923 | KC501 |
| 1924 | KC7641 |
| 1925 | KC18869 |
| 1926 | KC37728 |
| 1927 | KC62824 |
| 1928 | KC89470 |
| 1929 | KC119823 |
| 1930 | KC159111 |
| 1931 | KC191486 |
| 1932 | KC201013 |
| 1933 | ----- |
| 1934 | KC204239 |
| 1935 | KC206179 |
| 1936 | KC207275 |
| 1937 | KC210235 |
| 1938 | KC212425 |
| 1939 | KC214886 |
BELT PULLEY
| Diameter | 15.25 inches/38 cm |
| Width | 7 inches/17 cm |
| RPM | 661 |