Wallis 12-20
The Wallis 12-20 is a tractor produced by Wallis. It is equipped with a 248 ci 4.1 L engine. Transmission: 3 forward and 1 reverse. Operating weight: 3455 lbs 1567 kg.
Fuel & Capacities
15 gal
56.8 L
Transmission
3 forward and 1 reverse
Operating Weight
3455 lbs
1567 kg
Overview
 | 1929 - 1932
Standard-tread tractor |
|---|
Production | |
|---|---|
Manufacturer | Wallis (a part of Massey-Harris) |
Standard-tread tractor | |
Built in Racine, Wisconsin, USA | |
Wallis 12-20 Engine | |
|---|---|
Wallis 4.1L 4-cyl gasoline | |
Fuel tank | 15 gal
56.8 L |
Aux. fuel | 1.75 gal
6.6 L |
Engine details ...  | |
Wallis 12-20 Transmission | |
|---|---|
3-speed gear | |
Transmission details ...  |
Wallis 12-20 Power | |
|---|---|
Drawbar (claimed) | 12 hp
8.9 kW |
Belt (claimed) | 20 hp
14.9 kW |
Plows | 2 |
Drawbar (tested) | 18.07 hp
13.5 kW |
Belt (tested) | 24.16 hp
18.0 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Dimensions & Tires | |
|---|---|
Wheelbase | 78 inches
198 cm |
Weight | 3455 lbs
1567 kg |
Front tire | 28x5 |
Rear tire | 44x10 |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 17 inches
43 cm |
Width | 6 inches
15 cm |
RPM | 540 |
Speed | 2400 ft/min
731.52 meters/min |
References | |
|---|---|
 | |
20-30 Tractor / 12-20 Tractor published by Wallis |
Engine
Engine Detail — 248 ci / 4.1 L Gasoline
Manufacturer | Wallis |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 248 ci
4.1 L |
Bore/Stroke | 3.875x5.25 inches
98 x 133 mm |
Rated RPM | 1000 |
Starter type | hand-crank |
Transmission
Transmission — 3 forward and 1 reverse gear
Type | gear |
Gears | 3 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
Wallis 12-20 Tires | |
|---|---|
Ag front | 28x5 (steel) |
Ag rear | 44x10 (steel) |
Dimensions | |
|---|---|
Wheelbase | 78 inches
198 cm |
Length | 121 inches
307 cm |
Width | 55 inches
139 cm |
Height | 51 inches
129 cm |
Weight | 3455 lbs
1567 kg |
Tests
Nebraska Tractor Test 164 | |
|---|---|
Gasoline 3-speed 2WD
June 18 - 27, 1929
Link: Nebraska Tractor Test 164 file | |
Belt power (max) | 24.16 hp
18.0 kW |
Belt fuel use (max) | 2.5 gal/hour
9.5 l/hour |
Drawbar performance | |
Max power | 18.07 hp
13.5 kW |
Max pull | 3,018 lbs
1368 kg |
Photos
Wallis 12-20
Wallis 12-20
Wallis 12-20
Wallis 12-20 operator station and controls.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Wallis 12-20.
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
Wallis 12-20 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Wallis 12-20.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
Related models
Wallis 20-30
- Power:
- 33.3
- Production years:
- 1927 - 1932
Wallis OK 15-27
- Power:
- 30
- Production years:
- 1923 - 1927
Wallis K 15-25
- Power:
- 27.8
- Production years:
- 1919 - 1923
Wallis Cub Junior
- Power:
- 33.3
- Production years:
- 1917 - 1919
Wallis Cub
- Power:
- 57.8
- Production years:
- 1914 - 1917