Twin City 12-20
The Twin City 12-20 is a tractor produced by Twin City. It is equipped with a 340.5 ci 5.6 L engine. The listed engine power is Kerosene (listed): 35 hp / 26.1 kW. Transmission: 2 forward and 1 reverse. Operating weight: 5000 lbs 2268 kg.
Engine Power
Kerosene (listed): 35 hp / 26.1 kW
Fuel & Capacities
20 gal
75.7 L
Transmission
2 forward and 1 reverse
Operating Weight
5000 lbs
2268 kg
Overview
 | 1919 - 1926
Standard-tread tractor |
|---|
Production | |
|---|---|
Manufacturer | Twin City |
Standard-tread tractor | |
Built in Minneapolis, Minnesota, USA | |
Total built | 9,700 |
Twin City 12-20 Engine | |
|---|---|
Twin City 5.6L 4-cyl kerosene | |
Fuel tank | 20 gal
75.7 L |
Aux. fuel | 1 gal
3.8 L |
Engine details ...  | |
Twin City 12-20 Transmission | |
|---|---|
2-speed gear | |
Transmission details ...  |
Twin City 12-20 Power | |
|---|---|
Engine | 35 hp
26.1 kW |
Drawbar (claimed) | 12 hp
8.9 kW |
Belt (claimed) | 20 hp
14.9 kW |
Plows | 3 (14-inch) |
Drawbar (tested) | 18.43 hp
13.7 kW |
Belt (tested) | 27.93 hp
20.8 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Final drives | bull gear |
Manual steering | |
Open operator station. | |
Dimensions & Tires | |
|---|---|
Wheelbase | 84 inches
213 cm |
Weight | 5000 lbs
2268 kg |
Front tire | 34x5.75 |
Rear tire | 50x12 |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 16 inches
40 cm |
Width | 6.5 inches
16 cm |
RPM | 650 |
Speed | 2700 ft/min
822.96 meters/min |
References | |
|---|---|
 | |
Twin City Kerosene Tractors published in 1918, by Minneapolis Steel and Machinery |
Engine
Engine Detail — 340.5 ci / 5.6 L Kerosene
Manufacturer | Twin City |
Fuel Type | Kerosene |
Configuration | 4-cylinder 16-valve, liquid-cooled inline |
Displacement | 340.5 ci
5.6 L |
Bore/Stroke | 4.25x6.00 inches
108 x 152 mm |
Power | 35 hp
26.1 kW |
Fuel system | Holley carburetor |
Rated RPM | 1000 |
Starter type | hand-crank |
Coolant capacity | 40 qts
37.9 L |
Twin City 12-20 Engine | |
|---|---|
 |
Transmission
Transmission — 2 forward and 1 reverse gear
Type | gear |
Gears | 2 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
Twin City 12-20 Tires | |
|---|---|
Ag front | 34x5.75 (steel) |
Ag rear | 50x12 (steel) |
Ag front | 30x5.75 (orchard) |
Ag rear | 42x12 (orchard) |
Dimensions | |
|---|---|
Wheelbase | 84 inches
213 cm |
Length | 134 inches
340 cm |
139.5 inches (orchard)
354 cm | |
Width | 63 inches
160 cm |
57.5 inches (orchard)
146 cm | |
Height | 66 inches
167 cm |
57.5 inches (orchard)
146 cm | |
Shipping weight | 5000 lbs
2268 kg |
Tests
Nebraska Tractor Test 19 | |
|---|---|
Kerosene 2-speed 2WD
June 3 - 12, 1920
Link: Nebraska Tractor Test 19 file | |
Belt power (max) | 27.93 hp
20.8 kW |
Belt fuel use (max) | 3.2 gal/hour
12.1 l/hour |
Drawbar performance | |
Max power | 18.43 hp
13.7 kW |
Max pull | 3476 lbs
1576 kg |
Photos
Twin-City 12-20 tractor.
Twin-City 12-20 operator station and controls.
Recommended Implements & Sizing Guide
Engineering recommendations for Twin City 12-20 based on its 35 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Twin City 12-20.
Estimated Continuous Field Runtime: 11 hrs
Approximately 11 hours of continuous field operation at ~75% rated power on a full tank (20 gal / 75.7 L).
Estimated 75% Load Fuel Burn~1.8 gal/hr (6.9 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Twin City 12-20 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Twin City 12-20.
Converted Equivalents:
Horsepower (HP)35 hp
Kilowatts (kW)26.1 kW
Metric Horsepower (PS / CV)35.5 PS
Direct Competitor Comparison
Compare Twin City 12-20 against same-era industry alternatives in the same horsepower class.
Current Model
Twin City
Twin City 12-20
Engine Power:Kerosene (listed): 35 hp / 26.1 kW
★ Baseline Reference
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