Introduction
Volvo T31 Standard-Tread Tractor
The Volvo T31 is a standard-tread agricultural tractor produced between 1949 and 1957. Designed as a robust utility machine, it served as a primary power unit for mid-century farming operations requiring reliable traction and implement operation.
Engine and Performance
The tractor is powered by a liquid-cooled Volvo D4F 4-cylinder engine with a displacement of 211.1 cubic inches (3.5 liters). Operating on kerosene, the engine produces 36 horsepower (26.8 kW) at a rated speed of 1500 RPM. The bore and stroke measure 3.94 by 4.33 inches (100 x 110 mm), providing steady torque characteristics for field work.
Transmission and Drivetrain
The T31 utilizes a manual transmission system featuring five forward gears and one reverse gear. It is configured as a two-wheel-drive machine, steered via a manual steering system, which was standard for tractors of this era.
Power Take-Off and Hydraulics
Equipped with a rear Power Take-Off (PTO) shaft operating at 540 RPM, the system is calibrated to reach this speed when the engine is running at its rated 1500 RPM. This allows for the effective operation of various towed and mounted agricultural implements.
Dimensions and Chassis
The tractor features an open operator station with a wheelbase of 77.2 inches (196 cm). The base weight of the unit is 5,060 lbs (2,295 kg), which can be increased to 7,584 lbs (3,440 kg) when ballasted. Ground clearance is 16.5 inches (41 cm), and the machine sits on 6.00-19 front tires and 13-30 rear tires.
Conclusion
The Volvo T31 is a durable, mechanical-focused tractor suitable for collection or light-to-medium agricultural tasks. Its simple construction and manual controls prioritize ease of maintenance and long-term operational reliability.
Production Information of Volvo, T31
- Standard-tread tractor
| Manufacturer | Volvo |
|---|
Dimension and Tires Information of Volvo, T31
| Front tread | 49.6/56.9 inches [125/144 cm] |
|---|---|
| Wheelbase | 77.2 inches [196 cm] |
| Ballasted weight | 7584 lbs [3440 kg] |
| Weight | 5060 lbs [2295 kg] |
| Length | 122.6 inches [311 cm] |
| Rear tread | 56.7 to 76.4 inches [144 to 194 cm] |
| Ground clearance | 16.5 inches [41 cm] |
| Width | 72.4 inches [183 cm] |
Width at minimum tread.
| Ag front | 6.00-19 |
|---|---|
| Ag rear | 13-30 |
Engine Specifications of Volvo, T31
- Volvo D4F
- Liquid-cooled
- Kerosene
- 4-cylinder
| Power | 36 hp [26.8 kW] |
|---|---|
| Displacement | 211.1 ci [3.5 L] |
| Rated RPM | 1500 |
| Bore/Stroke | 3.94x4.33 inches [100 x 110 mm] |
| Starter volts | 6 |
Transmission Information of Volvo, T31
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 5 forward and 1 reverse |
Mechanical Specs of Volvo, T31
- Two-wheel drive
- Manual steering
- Open operator station.
Power Information of Volvo, T31
| Rear PTO Type | 540 (1.375) |
|---|---|
| Engine RPM | 540@1500 |
Where it sits
With 36 HP, the Volvo T31 sits between T425 (32 HP) and T320 (37 HP) in Volvo's range. Its power puts it in the 56th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the Volvo T31 have?
The Volvo T31 delivers 36 HP.
What years was the Volvo T31 produced?
The Volvo T31 was produced in 1949-1957.
What engine does the Volvo T31 have?
The Volvo T31 is powered by a 4-cylinder engine.
What transmission does the Volvo T31 use?
The Volvo T31 uses a Gear transmission.
How much does the Volvo T31 weigh?
The Volvo T31 weighs 7584 lbs [3440 kg].
Is the Volvo T31 4WD?
The Volvo T31 is available in 2WD.