Introduction
Fiat 312R Utility Tractor
The Fiat 312R is a utility tractor manufactured in Modena, Italy, between 1959 and 1964. It is designed for general agricultural tasks, serving as a reliable mechanical solution for small to medium-scale farming operations during its production era.
Engine and Performance
The tractor is powered by a 1.9-liter, 4-cylinder inline diesel engine. It generates 30 horsepower (22.4 kW) at a rated speed of 2200 RPM. The engine cooling is provided by a liquid system, and it produces 75.5 lb-ft (102.4 Nm) of torque at 1600 RPM, providing sufficient pulling capacity for standard field implements.
Transmission and PTO
Power is delivered through a gear-type transmission featuring 6 forward speeds and 2 reverse speeds. It is equipped with an independent rear power take-off (PTO) operating at 540 RPM, which engages at an engine speed of 2160 RPM, allowing for consistent implement operation.
Mechanical and Hydraulic Systems
The 312R utilizes a two-wheel drive configuration supported by a mechanical rear differential lock for improved traction in soft soil conditions. Steering is manual, and braking is handled by mechanical band brakes. The rear hitch is a Category I three-point linkage with a lifting capacity of 1764 lbs (800 kg).
Dimensions and Weight
The tractor features a wheelbase of 69.9 inches (177 cm) and a total weight of 3131 lbs (1420 kg). The front tread is adjustable between 51.8 and 75.4 inches, while the rear tread is adjustable between 47.2 and 74.8 inches. Standard agricultural tires are fitted, with 5.50-16 tires in the front and 11.2/10-28 tires in the rear.
Conclusion
The Fiat 312R is a sturdy, straightforward utility tractor suited for traditional agricultural field work. Its mechanical simplicity, combined with a 30-horsepower engine and Category I hitch, makes it a functional choice for hobby farming and light-duty agricultural maintenance.
Fiat 312R Manuals & Documentation
Download the manuals and documentation available for the Fiat 312R: repair and workshop manuals, operator's handbooks, spare-parts catalogs and technical leaflets — free PDF files.
Archive documentation provided for reference, hosted by Tractor-Info.
Production Information of Fiat, 312R
- Utility tractor
- Built in Modena, Italy
| Manufacturer | Fiat |
|---|
Dimension and Tires Information of Fiat, 312R
| Front tread | 51.8 to 75.4 inches [131 to 191 cm] |
|---|---|
| Wheelbase | 69.9 inches [177 cm] |
| Weight | 3131 lbs [1420 kg] |
| Height (hood) | 53.5 inches [135 cm] |
| Length | 113.4 inches [288 cm] |
| Rear tread | 47.2 to 74.8 inches [119 to 189 cm] |
| Ground clearance | 15.6 inches [39 cm] |
| Height (steering wheel) | 58.2 inches [147 cm] |
| Standard tires (ag) | Front: 5.50-16. Rear: 11.2/10-28 |
|---|
Engine Specifications of Fiat, 312R
- Liquid-cooled inline
- 4-cylinder
- Diesel
| Coolant capacity | 10.6 qts [10.0 L] |
|---|---|
| Oil capacity | 5.3 qts [5.0 L] |
| Compression | 22.5:1 |
| Torque RPM | 1600 |
| Torque | 75.5 lb-ft [102.4 Nm] |
| Displacement | 116 ci [1.9 L] |
| Power | 30 hp [22.4 kW] |
| Rated RPM | 2200 |
| Bore/Stroke | 3.23x3.54 inches [82 x 90 mm] |
| Starter volts | 24 |
| Starter | Electric |
| Firing order | 1-3-4-2 |
Transmission Information of Fiat, 312R
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 6 forward and 2 reverse |
| Oil capacity | 13.2 qts [12.5 L] |
Mechanical Specs of Fiat, 312R
- Two-wheel drive
- Open operator station.
- Mechanical band brakes
- Manual steering
| Differential lock | Mechanical rear |
|---|
Power Information of Fiat, 312R
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 540@2160 |
Three-Point Hitch of Fiat, 312R
| Rear Type | I |
|---|---|
| Rear lift | 1764 lbs [800 kg] |
Electrical System of Fiat, 312R
| Ground | Negative |
|---|---|
| Batteries | 2 |
| Battery volts | 12 |
Where it sits
With 30 HP, the Fiat 312R sits between 25R (23 HP) and 315 (33 HP) in Fiat's range. Its power puts it in the 36th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the Fiat 312R have?
The Fiat 312R delivers 30 HP.
What years was the Fiat 312R produced?
The Fiat 312R was produced in 1959-1964.
What engine does the Fiat 312R have?
The Fiat 312R is powered by a Diesel, 4-cylinder engine.
What transmission does the Fiat 312R use?
The Fiat 312R uses a Gear transmission.
How much does the Fiat 312R weigh?
The Fiat 312R weighs 3131 lbs [1420 kg].
Is the Fiat 312R 4WD?
The Fiat 312R is available in 2WD.