Introduction
UTB 550 Agricultural Tractor
The UTB 550 is a utility tractor manufactured by UTB/Universal in Brasov, Romania, between 1974 and 1981. Designed for general agricultural operations, it combines a robust diesel powertrain with mechanical versatility, serving as a reliable workhorse for mid-sized farming tasks.
Engine and Performance
The tractor is powered by a 3.1-liter (190.3 ci), four-cylinder diesel engine. It utilizes direct injection and liquid cooling to produce 55 horsepower (41.0 kW) at a rated engine speed of 2400 RPM. The engine features a 17:1 compression ratio and a bore-to-stroke ratio of 95 x 110 mm, ensuring consistent torque delivery for field operations.
Transmission and Drivetrain
Operators can choose between two transmission configurations. The constant mesh system provides 12 forward gears and 3 reverse gears across three ranges (creeper, low, and high), with synchronization on the third and fourth gears. Alternatively, an 8-speed shuttle transmission is available. Both systems utilize a dry disc clutch, and the tractor is available in either two-wheel or four-wheel drive variants, supported by power steering and a mechanical rear differential lock.
Hydraulics and Hitch
The UTB 550 is equipped with an open-center hydraulic system featuring a pump flow capacity of 10.8 gpm (40.9 lpm) and one valve. The rear hitch is a Type II/I configuration, capable of lifting 4,630 lbs (2,100 kg). It includes both position and draft control, allowing for precise adjustment of implements during soil cultivation or transport tasks.
Operator Environment and Dimensions
The tractor is built with a Roll-Over Protective Structure (ROPS) as standard, with an optional cab available for improved operator comfort. It weighs approximately 4,600 lbs (2,086 kg) and utilizes 7.50-16 front tires and 18.4-28 rear tires. The electrical system operates on 12 volts, utilizing an alternator for charging and a negative ground configuration.
Conclusion
The UTB 550 remains a functional machine for agricultural applications requiring a balance of mechanical simplicity and performance. With its 55 hp engine and flexible hitch system, it is well-suited for general tillage, transport, and implement operation in varied agricultural environments.
Production Information of UTB Universal, 550
- Built in Brasov, Romania
- Original price was $24,000 in 1981
| Manufacturer | UTB/Universal |
|---|
Dimension and Tires Information of UTB Universal, 550
| Weight | 4600 lbs [2086 kg] |
|---|
| Ag front | 7.50-16 |
|---|---|
| Ag rear | 18.4-28 |
Engine Specifications of UTB Universal, 550
- UTB
- Liquid-cooled
- Diesel
- 4-cylinder
| Rated RPM | 2400 |
|---|---|
| Displacement | 190.3 ci [3.1 L] |
| Fuel system | Direct injection |
| Bore/Stroke | 3.74x4.331 inches [95 x 110 mm] |
| Starter power | 4 hp [3.0 kW] |
| Starter volts | 12 |
| Compression | 17:1 |
| Air cleaner | Oil bath |
| Power | 55 hp [41.0 kW] |
Transmission Information of UTB Universal, 550
Transmission variants 1
- Four gears (1-4) plus reverse (R) in three ranges (creeper, low, and high). Gears 3 and 4 are synchronized.
| Type | Constant mesh |
|---|---|
| Gears | 12 forward and 3 reverse |
| Clutch | Dry disc |
Transmission variants 2
| Type | Shuttle |
|---|---|
| Gears | 8 forward and reverse |
| Clutch | Dry disc |
- 12-speed constant mesh
- 8-speed shuttle
Mechanical Specs of UTB Universal, 550
- Two- or four-wheel drive
- ROPS. Cab optional.
- Dry band brakes
- Power steering
| Differential lock | Mechanical rear |
|---|
Power Information of UTB Universal, 550
| Rear PTO | Live |
|---|---|
| Rear PTO Type | 540 |
Hydraulics Specifications of UTB Universal, 550
| Type | Open center |
|---|---|
| Valves | 1 |
| Pump flow | 10.8 gpm [40.9 lpm] |
Three-Point Hitch of UTB Universal, 550
| Rear Type | II/I |
|---|---|
| Control | Position and draft control |
| Rear lift | 4630 lbs [2100 kg] |
Electrical System of UTB Universal, 550
| Ground | Negative |
|---|---|
| Charging system | Alternator |
| Battery volts | 12 |
Where it sits
With 55 HP, the UTB Universal 550 sits between 533 (53 HP) and 553 (61 HP) in UTB Universal's range. Its power puts it in the 37th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the UTB Universal 550 have?
The UTB Universal 550 delivers 55 HP.
What years was the UTB Universal 550 produced?
The UTB Universal 550 was produced in 1974-1981.
What engine does the UTB Universal 550 have?
The UTB Universal 550 is powered by a Diesel, 4-cylinder engine.
What transmission does the UTB Universal 550 use?
The UTB Universal 550 uses a Constant mesh transmission.
How much does the UTB Universal 550 weigh?
The UTB Universal 550 weighs 4600 lbs [2086 kg].
Is the UTB Universal 550 4WD?
The UTB Universal 550 is available in 2WD/4WD.