AGCO ST22A
The AGCO ST22A is a tractor produced by Agco. It is equipped with a 68.5 ci 1.1 L engine. The listed engine power is Diesel (gross): 22.5 hp / 16.8 kW. Transmission: infinite forward and reverse (2-range). Operating weight: 1367 lbs 620 kg.
Engine Power
Diesel (gross): 22.5 hp / 16.8 kW
Fuel & Capacities
5.5 gal
20.8 L
Transmission
infinite forward and reverse (2-range)
Operating Weight
1367 lbs
620 kg
Overview
 | 2003 - 2008
ST-A SeriesSub-Compact Utility tractorIseki built
ST-A Series
Sub-Compact Utility tractor
Iseki built |
|---|
Production | |
|---|---|
Distributor | AGCO |
Manufacturer | Iseki |
Sub-Compact Utility tractor | |
Built in Matsuyama, Japan | |
Variants | |
|---|---|
GC2300 | similar Massey Ferguson model |
AGCO ST22A Engine | |
|---|---|
Iseki 1.1L 3-cyl diesel | |
Fuel tank | 5.5 gal
20.8 L |
Engine details ...  | |
AGCO ST22A Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
AGCO ST22A Power | |
|---|---|
Engine (gross) | 22.5 hp
16.8 kW |
Hydro PTO (claimed) | 18.5 hp
13.8 kW |
Gear PTO (claimed) | 19 hp
14.2 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Differential lock | mechanical rear |
Power steering | |
Wet disc brakes | |
Two-post fixed ROPS. | |
Hydraulics | |
|---|---|
Type | open center |
Pump flow | 4.1 gpm
15.5 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift (at ends) | 1190 lbs
539 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 (1.375) |
Mid PTO | independent |
Mid PTO Type | 2000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 57.1 inches
145 cm |
Weight | 1367 lbs
620 kg |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
ST Series published in 2004, by AGCO* | |
*Publication contains known errors. |
Engine
Engine Detail — 68.5 ci / 1.1 L Diesel
Manufacturer | Iseki |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 68.5 ci
1.1 L |
Bore/Stroke | 3.08x3.07 inches
78 x 78 mm |
Power (gross) | 22.5 hp
16.8 kW |
Rated RPM | 2600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — infinite forward and reverse (2-range) hydrostatic
Type | hydrostatic |
Gears | infinite forward and reverse (2-range) |
Dimensions
AGCO ST22A Tires |
|---|
Dimensions | |
|---|---|
Wheelbase | 57.1 inches
145 cm |
Length | 97.6 inches
247 cm |
Width | 45.8 inches
116 cm |
Height | 72.4 inches
183 cm |
Shipping weight | 1367 lbs
620 kg |
Attachments
Attachment overview | |
|---|---|
54" mid-mount mower deck | |
60" mid-mount mower deck | |
Front-end loader |
Photos
AGCO ST22A tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Agco ST22A based on its 22.5 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Agco ST22A.
Estimated Continuous Field Runtime: 4.7 hrs
Approximately 4.7 hours of continuous field operation at ~75% rated power on a full tank (5.5 gal / 20.8 L).
Estimated 75% Load Fuel Burn~1.2 gal/hr (4.4 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Agco ST22A Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Agco ST22A.
Converted Equivalents:
Horsepower (HP)22.5 hp
Kilowatts (kW)16.8 kW
Metric Horsepower (PS / CV)22.8 PS
Direct Competitor Comparison
Compare AGCO ST22A against same-era industry alternatives in the same horsepower class.
Current Model
Agco
AGCO ST22A
Engine Power:Diesel (gross): 22.5 hp / 16.8 kW
★ Baseline Reference
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