Introduction
UTB 640 Agricultural Tractor
The UTB 640 is a utility tractor produced by Universal (UTB) in Brasov, Romania, between 1983 and 1985. Part of the 530 series, this machine was designed for general agricultural tasks, offering a balance of mechanical simplicity and operational versatility.
Engine and Performance
The tractor is powered by a 3.6-liter, 4-cylinder liquid-cooled diesel engine. Utilizing direct injection, it produces 65 hp (48.5 kW) at a rated speed of 2400 RPM. The engine delivers a peak torque of 163 lb-ft (221.0 Nm) at 1400 RPM, providing consistent lugging ability for field work.
Transmission and Drivetrain
The UTB 640 offers two transmission configurations: a 12-speed constant mesh gearbox (12 forward, 3 reverse) or an 8-speed shuttle transmission. Both options utilize a dry disc clutch. The tractor is available in either two-wheel drive or four-wheel drive variants, supported by hydrostatic power steering and a mechanical rear differential lock for improved traction.
Hydraulics and PTO
The hydraulic system is an open-center design featuring a pump flow of 10.8 gpm (40.9 lpm) and one auxiliary valve. The rear hitch is a Category II/I type, equipped with position and draft control, capable of a maximum lift capacity of 4,630 lbs (2,100 kg). The rear PTO operates at a standard speed of 540 RPM.
Dimensions and Construction
The tractor features a dry band braking system and an electrical system based on a 12-volt battery with an alternator charging system. The 2WD model has a wheelbase of 82.6 inches and weighs 4,400 lbs, while the 4WD version has a shorter 78.3-inch wheelbase and a weight of 5,100 lbs. Operators can choose between an open station with ROPS or an optional factory cab.
Conclusion
The UTB 640 is a robust, mid-range tractor suitable for small to medium-sized farming operations. Its mechanical configuration and straightforward design make it a practical machine for tasks requiring reliable power and standard hydraulic implement control.
UTB Universal 640 Manuals & Documentation
Download the manuals and documentation available for the UTB Universal 640: 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 UTB Universal, 640
- Built in Brasov, Romania
| Manufacturer | UTB/Universal |
|---|---|
| Original price | $20,000 (1985) |
Dimension and Tires Information of UTB Universal, 640
| 2WD Wheelbase | 82.6 inches [209 cm] |
|---|---|
| 4WD Weight | 5100 lbs [2313 kg] |
| 4WD Wheelbase | 78.3 inches [198 cm] |
| 2WD Weight | 4400 lbs [1995 kg] |
| Optional tires (ag) | Front: 12.4x36. Rear: 12.4x36 (DTCE) |
|---|---|
| Standard tires (ag) | Front: 6.00x16. Rear: 14.9x28 (2WD) |
| Standard tires (ag)(optional) | Front: 14.9x28. Rear: 14.9x28 (DTCE) |
| Standard tires (ag)(optional) | Front: 9.50x24. Rear: 16.9x30 (4WD SD) |
| Standard tires (ag)(optional) | Front: 11Lx15. Rear: 16.9x30 (640SD) |
| Standard tires (ag)(optional) | Front: 7.50x16. Rear: 11.2x38 (640L) |
| Standard tires (ag)(optional) | Front: 6.00x16. Rear: 9.50x36 (640L) |
| Standard tires (ag)(optional) | Front: 7.50x20. Rear: 14.9x28 (4WD) |
Engine Specifications of UTB Universal, 640
- UTB
- Liquid-cooled
- 4-cylinder
- Diesel
| Fuel system | Direct injection |
|---|---|
| Torque | 163 lb-ft [221.0 Nm] |
| Displacement | 219.4 ci [3.6 L] |
| Bore/Stroke | 4.016x4.331 inches [102 x 110 mm] |
| Power | 65 hp [48.5 kW] |
| Rated RPM | 2400 |
| Compression | 17:1 |
| Starter power | 4 hp [3.0 kW] |
| Starter volts | 12 |
| Torque RPM | 1400 |
Transmission Information of UTB Universal, 640
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, 640
- Two- or four-wheel drive
- ROPS. Cab optional.
- Dry band brakes
| Differential lock | Mechanical rear |
|---|---|
| Steering | Hydrostatic power |
Power Information of UTB Universal, 640
| Rear PTO | Live |
|---|---|
| Rear PTO Type | 540 |
Hydraulics Specifications of UTB Universal, 640
| Type | Open center |
|---|---|
| Valves | 1 |
| Pump flow | 10.8 gpm [40.9 lpm] |
Three-Point Hitch of UTB Universal, 640
| Rear Type | II/I |
|---|---|
| Control | Position and draft control |
| Rear lift | 4630 lbs [2100 kg] |
Electrical System of UTB Universal, 640
| Ground | Negative |
|---|---|
| Charging system | Alternator |
| Battery volts | 12 |
Where it sits
With 65 HP, the UTB Universal 640 sits just above 530 (53 HP) in UTB Universal's range. Its power puts it in the 47th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the UTB Universal 640 have?
The UTB Universal 640 delivers 65 HP.
What years was the UTB Universal 640 produced?
The UTB Universal 640 was produced in 1983-1985.
What engine does the UTB Universal 640 have?
The UTB Universal 640 is powered by a Diesel, 4-cylinder engine.
What transmission does the UTB Universal 640 use?
The UTB Universal 640 uses a Constant mesh transmission.
How much does the UTB Universal 640 weigh?
The UTB Universal 640 weighs 5100 lbs [2313 kg].
Is the UTB Universal 640 4WD?
The UTB Universal 640 is available in 2WD/4WD.