Iseki
Iseki TU257
The Iseki TU257 is a compact utility tractor produced from 1989 to 1992 as part of the TU 7 Series. It features a 24.7 hp Isuzu 1.5L 3-cylinder liquid-cooled diesel engine, a 12-speed transmission with 4 reverse gears, and is available in two- or four-wheel drive configurations. The tractor has an open operator station and uses a JIS0 rear hitch. It has a rear PTO with 540 rpm and multiple engine RPM settings. Dimensions include a 60.2 inch wheelbase, 115.6 inch length, and weights ranging from 1973 to 2161 pounds depending on drive type. Standard tires vary by 2WD or 4WD models. Electrical system is 12 volts with negative ground.
Power24 hp
Founded1989 - 1992
ModelTU257
Technical Specifications
Detailed specifications and technical data for Iseki TU257
Power
| Engine power | 24.7 hp (18.4 kW) |
|---|
Tires
| 2WD Standard tires (ag) | Front: 5.00-15. Rear: 11.2-24 |
|---|---|
| 4WD Standard tires (ag) | Front: 7-16. Rear: 11.2-24 |
Engine
| Type | diesel, 3-cylinder, liquid-cooled |
|---|---|
| Model | Isuzu E3AD1 |
| Power | 24.7 hp (18.4 kW) |
| Starter | electric |
| Fuel tank | 6.6 gal (25.0 L) |
| Rated RPM | 2500 |
| Bore/Stroke | 3.385x3.386 inches (86 x 86 mm) |
| Displacement | 91.4 ci (1.5 L) |
| Oil capacity | 4.5 qts (4.3 L) |
| Starter volts | 12 |
| Coolant capacity | 7.4 qts (7.0 L) |
Dimensions
| Width | 50.8 inches (129 cm) |
|---|---|
| Height | 56.3 inches (143 cm) |
| Length | 115.6 inches (293 cm) |
| Wheelbase | 60.2 inches (152 cm) |
| 2WD Weight | 1973 lbs (894 kg) |
| 4WD Weight | 2161 lbs (980 kg) |
| Rear tread | 38.6 to 51.2 inches (98 to 130 cm) |
| 2WD Front tread | 37/38.6 inches (93/98 cm) |
| 4WD Front tread | 41.3 inches (104 cm) |
| 2WD Ground clearance | 13.4 inches (34 cm) |
| 4WD Ground clearance | 12.6 inches (32 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
Mechanical
| Drive | Two- or four-wheel drive |
|---|---|
| Operator station | Open operator station |
Production
| Series | TU 7 Series |
|---|---|
| Category | Compact Utility tractor |
| Variants | TU257F 4WD |
| Years produced | 1989 - 1992 |
Transmission
| Gears | 12 forward and 4 reverse |
|---|---|
| Description | Three gears, plus reverse, in four ranges. |
| Oil capacity | 19 qts (18.0 L) |
Tractor hitch
| Rear Type | JIS0 |
|---|
Power Take-off (PTO)
| Engine RPM | 526@2500, 805@2500, 1244@2500 |
|---|---|
| Rear PTO Type | 540 (1.375) |