UTB/Universal 643 Specs ( 1988-2004 )
Production
| Description | Utility tractor / Built in Brasov, Romania |
|---|---|
| Manufacturer | UTB/Universal |
| Original price | $25,000 (2004) |
Engine
| Air cleaner | oil bath |
|---|---|
| Bore/Stroke | 4.02x4.33 inches (102 x 110 mm) |
| Compression | 17:1 |
| Coolant capacity | 14.8 qts (14.0 L) |
| Description | UTB D121.050 / diesel / 4-cylinder / liquid-cooled / diesel / 4-cylinder |
| Displacement | 219.4 ci (3.6 L) / 196.9 ci (3.2 L) |
| Fuel system | direct injection |
| Oil capacity | 10.6 qts (10.0 L) |
| Power | 64 hp (47.7 kW) |
| Rated RPM | 2400 / 2400 |
| Starter power | 4.7 hp (3.5 kW) |
| Starter volts | 12 |
| Torque | 152 lb-ft (206.1 Nm) |
| Torque RPM | 1400 |
| Engine type | UTB 3.6L 4-cyl diesel / 3.2L 4-cyl diesel |
| PTO (claimed) | 58 hp (43.3 kW) |
| Engine type | UTB 3.6L 4-cyl diesel / 3.2L 4-cyl diesel |
| Fuel tank | 16.4 gal (62.1 L) |
Transmission
| Clutch | dry disc / dry disc |
|---|---|
| Description | Four gears (1-4) plus reverse (R) in two ranges (low and high). / Optional creeper adds a third range to the basic transmission. |
| Gears | 8 forward and 2 reverse / 12 forward and 3 reverse / 8 forward and reverse |
| Oil capacity | 24.3 qts (23.0 L) |
| Type | constant mesh / creeper / shuttle |
| Transmission type | 8-speed constant mesh / 12-speed creeper / 8-speed shuttle |
| Transmission type | 8-speed constant mesh / 12-speed creeper / 8-speed shuttle |
Mechanical
| Description | Power steering / Wet disc brakes |
|---|---|
| Differential lock | mechanical rear |
| Drive type | Two- or four-wheel drive |
Hydraulics
| Pressure | 2175 psi (150.0 bar) |
|---|---|
| Pump flow | 9 gpm (34.1 lpm) |
| Type | open center |
| Valves | 1 |
Hitch
| Control | position and draft control |
|---|---|
| Rear lift | 4630 lbs (2100 kg) |
| Rear Type | II |
PTO
| Engine RPM | 540@2160 |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 540/1000 |
Electrical
| Battery AH | 150 |
|---|---|
| Battery volts | 12 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| 2WD Front tread | 55.1 to 78.4 inches (139 to 199 cm) |
|---|---|
| 2WD Weight | 6192 lbs (2808 kg) |
| 4WD Front tread | 54.3 to 62.2 inches (137 to 157 cm) |
| 4WD Weight | 6889 lbs (3124 kg) |
| Height | 100.4 inches (255 cm) |
| Length | 149.2 inches (378 cm) |
| Rear tread | 55.5 to 75.2 inches (140 to 191 cm) |
| Wheelbase | 89.4 inches (227 cm) |
| 2WD Rear tire | 14.9R-28 |
| Front tire | 6.00-16 |
| Weight | 6192 to 6889 pounds |
| Wheelbase | 89.4 inches (227 cm) |
| 2WD Standard tires (ag) | Front: 6.00-16. Rear: 14.9R-28 |
| 4WD Standard tires (ag) | Front: 9.5/8-24. Rear: 12.4R-36 |
References
| Description | 3 Series Tractors published by Universal* / 3 Series Tractors published by Universal / 643 - 643 DT published by Universal / *Publication contains known errors. |
|---|
Speeds
| Description | With 16.9-30 rear tires. / With 16.9-30 rear tires. |
|---|
Variants
| 643DT | 4WD |
|---|