Iseki GEAS AT23-AT33 technical specifications
All specifications of the Iseki GEAS AT23-AT33 on one page, taken directly from the original Iseki factory manual. Because the entire series is built on the same platform, the models share the engine, brakes, steering system and transmission — the tables below show exactly where they differ from each other.
Suitable for the entire series: Iseki GEAS AT23, AT25, AT27, AT30, AT33 and the narrow-track versions AT27N and AT33N.
Model codes
| Class |
Machine code |
Chassis code |
| AT23 |
T0844 |
T141F |
| AT25 |
T0854 |
T142F |
| AT27 |
T0864 |
T143F |
| AT30 |
T0874 |
T144F |
| AT33 |
T0884 |
T145F |
Note: revisions appeared during production, recognizable by a "-02" or "-04" suffix after the chassis number. These revisions received minor adjustments in weight and bodywork; if in doubt, always check your own chassis number.
Engine (same for the entire series)
| Component |
Specification |
| Type |
E3CD |
| Design |
Water-cooled, 4-stroke, 3-cylinder diesel |
| Displacement |
1,498 cc |
| Fuel |
Diesel fuel JIS 2 (JIS 3 in severe frost) |
| Fuel tank |
35 liters |
| Battery |
80D26R, 12V / 55Ah |
Power per model
| Model |
Power |
Engine speed |
| AT23 |
16.9 kW / 23 hp |
2500 rpm |
| AT25 |
18.4 kW / 25 hp |
2500 rpm |
| AT27 |
19.9 kW / 27 hp |
2500 rpm |
| AT30 |
22.1 kW / 30 hp |
2800 rpm |
| AT33 |
24.3 kW / 33 hp |
2800 rpm |
Dimensions and weight
| Model |
Length |
Width |
Height (cab) |
Wheelbase |
Ground clearance |
Weight (cab) |
| AT23 |
3010 mm |
1265 mm |
1975 mm |
1635 mm |
325 mm |
1280 kg (1395 kg) |
| AT25 |
3010 mm |
1340 mm |
1985 mm |
1665 mm |
355 mm |
1305 kg (1420 kg) |
| AT27 |
3010 mm |
1365 mm |
1985 mm |
1675 mm |
370 mm |
1330 kg (1445 kg) |
| AT30 |
3090 mm |
1415 mm |
1990 mm |
1700 mm |
385 mm |
1360 kg (1475 kg) |
| AT33 |
3090 mm |
1455 mm |
1990 mm |
1730 mm |
385 mm |
1385 kg (1500 kg) |
Track width
| Model |
Front track |
Rear track (ex factory) |
Rear adjustment range |
| AT23 |
960 mm |
1010 mm |
1010-1170 mm |
| AT25 / AT27 |
1090 mm |
1050 mm |
1050-1370 mm |
| AT30 / AT33 |
1150 mm |
1100 mm |
1100-1420 mm |
Tires
| Model |
Front tire |
Rear tire |
| AT23 |
7-14-4PR |
9.5-24-4PR |
| AT25 / AT27 |
7-16-4PR |
11.2-24-4PR (AT25) / 12.4-24-4PR (AT27) |
| AT30 / AT33 |
8-16-4PR |
12.4-26-4PR (AT30) / 13.6-24-4PR (AT33) |
Drive, transmission and PTO (same for the entire series)
| Component |
Specification |
| Drive |
Four-wheel drive (4WD) |
| Clutch |
Dry single-plate |
| Brake |
Wet disc brake |
| Steering |
Power steering (hydraulic) |
| Transmission |
Constant mesh, 16 gears + 4 road ranges (AT-shift) |
| Forward speed |
0.2 – 14.7 to 14.9 km/h (per model) |
| Reverse speed |
0.2 – 11.7 to 12.9 km/h (per model) |
| Minimum turning radius |
2.0 m |
| PTO speeds |
569 / 765 / 942 / 1227 rpm at 2500 engine rpm (AT23-27); 588 / 790 / 974 / 1268 rpm at 2800 engine rpm (AT30-33) |
| PTO shaft size |
JIS35 (splined) |
| Drawbar |
Fixed hitch (available as separate accessory) |
| Lift system |
Position control, 3-point linkage JIS category I |
Narrow-track variants AT27N and AT33N
| Component |
AT27N |
AT33N |
| Power |
19.9 kW / 27 hp @ 2500 rpm |
24.3 kW / 33 hp @ 2800 rpm |
| Length |
3050 mm |
3050 mm |
| Width |
1275 mm |
1325 mm |
| Height |
1880 mm |
1910 mm |
| Wheelbase |
1645 mm |
1645 mm |
| Ground clearance |
295 mm |
325 mm |
| Weight |
1280 kg |
1305 kg |
The N variants fully share the engine, transmission, PTO and lift system with the standard AT27 and AT33. Only the bodywork is built narrower and lower, allowing you to work comfortably between rows.
