Introduction
Valmet 903 Row-Crop Tractor
The Valmet 903 is a row-crop tractor manufactured between 1979 and 1983. Designed for versatility and operational efficiency, it served as a key model in the Valmet lineup during this period, offering configurations for both two-wheel and four-wheel drive applications.
Engine and Performance
The tractor is powered by a liquid-cooled, four-cylinder turbocharged diesel engine with a displacement of 4.4 liters. It delivers a power output of 95.2 hp (71.0 kW) at a rated speed of 2200 RPM. The engine produces a maximum torque of 247.1 lb-ft (335.1 Nm) at 1500 RPM, providing consistent pulling capability for agricultural field work.
Transmission and Drivetrain
The 903 utilizes the Hi-Trac transmission system, providing 16 forward gears and 4 reverse gears to accommodate various operational speeds. Power is transferred through a 310mm disc clutch. The drivetrain features power steering and mechanical rear differential locks to assist in traction management, with disc brakes utilized for reliable stopping power.
Hydraulics and PTO
The hydraulic system operates at a pressure of 3046 psi (210.0 bar) with a pump flow rate of 9.2 gpm (34.8 lpm) and a total capacity of 6.1 gallons. The rear independent PTO operates at 540 RPM, achieved at an engine speed of 1556 RPM. The rear hitch provides a lift capacity of 6393 lbs (2899 kg).
Operator Environment and Dimensions
The tractor is equipped with a standard cab featuring an integrated heater for operator comfort. In the 2WD configuration, the machine weighs 7981 lbs with a 92.1-inch wheelbase, while the 4WD version weighs 8907 lbs with a 96.3-inch wheelbase. Ground clearance varies by configuration, measuring 18.9 inches for 2WD and 18.5 inches for 4WD models.
Conclusion
The Valmet 903 is a robust, mechanically straightforward tractor designed for general row-crop applications. Its combination of a turbocharged engine, multi-speed transmission, and substantial lift capacity makes it a versatile tool for farmers requiring consistent performance in varied field conditions.
Production Information of Valmet, 903
- Row-Crop tractor
| Manufacturer | Valmet |
|---|
Dimension and Tires Information of Valmet, 903
| 2WD Weight | 7981 lbs [3620 kg] |
|---|---|
| 2WD Wheelbase | 92.1 inches [233 cm] |
| 2WD Width | 77.6 inches [197 cm] |
| 4WD Length | 164.2 inches [417 cm] |
| 4WD Wheelbase | 96.3 inches [244 cm] |
| 4WD Weight | 8907 lbs [4040 kg] |
| 4WD Width | 83.1 inches [211 cm] |
| 2WD Length | 153.7 inches [390 cm] |
| 4WD Ground clearance | 18.5 inches [46 cm] |
| 2WD Ground clearance | 18.9 inches [48 cm] |
| 2WD Standard tires (ag) | Front: 10.00-16. Rear: 16.9-34 |
|---|---|
| 4WD Standard tires (ag) | Front: 13.6-28. Rear: 18.4-34 |
Engine Specifications of Valmet, 903
- Liquid-cooled
- 4-cylinder
- Turbocharged diesel
| Rated RPM | 2200 |
|---|---|
| Starter | Electric |
| Displacement | 268.5 ci [4.4 L] |
| Bore/Stroke | 4.25x4.72 inches [108 x 120 mm] |
| Power | 95.2 hp [71.0 kW] |
| Torque RPM | 1500 |
| Torque | 247.1 lb-ft [335.1 Nm] |
| Coolant capacity | 16.9 qts [16.0 L] |
| Oil capacity | 13.7 qts [13.0 L] |
| Starter volts | 12 |
Transmission Information of Valmet, 903
Transmission variants 1
| Transmission | Hi-Trac |
|---|---|
| Gears | 16 forward and 4 reverse |
| Clutch | 310mm disc |
Mechanical Specs of Valmet, 903
- Two- or four-wheel drive
- Cab standard with heater.
- Disc brakes
- Power steering
| Differential lock | Mechanical rear |
|---|
Power Information of Valmet, 903
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 540@1556 |
Hydraulics Specifications of Valmet, 903
| Capacity | 6.1 gal [23.1 L] |
|---|---|
| Pressure | 3046 psi [210.0 bar] |
| Pump flow | 9.2 gpm [34.8 lpm] |
Three-Point Hitch of Valmet, 903
| Rear lift | 6393 lbs [2899 kg] |
|---|
Electrical System of Valmet, 903
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Battery AH | 130 |
Where it sits
With 95 HP, the Valmet 903 sits just above 803 (80 HP) in Valmet's range. Its power puts it in the 66th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Valmet 903 have?
The Valmet 903 delivers 95 HP.
What years was the Valmet 903 produced?
The Valmet 903 was produced in 1979-1983.
What engine does the Valmet 903 have?
The Valmet 903 is powered by a Turbocharged diesel, 4-cylinder engine.
What transmission does the Valmet 903 use?
The Valmet 903 uses a Hi-Trac transmission.
How much does the Valmet 903 weigh?
The Valmet 903 weighs 7981 lbs [3620 kg].
Is the Valmet 903 4WD?
The Valmet 903 is available in 2WD/4WD.