Satoh ST-3820
The Satoh ST-3820 is a tractor produced by Satoh. It is equipped with a 90.9 ci 1.5 L engine. The listed engine power is Diesel (listed): 38 hp / 28.3 kW. Transmission: 15 forward and 3 reverse.
Engine Power
Diesel (listed): 38 hp / 28.3 kW
Fuel & Capacities
Diesel
Transmission
15 forward and 3 reverse
Overview
 | 1980 - 1982
Utility tractor |
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Production | |
|---|---|
Manufacturer | Satoh |
Utility tractor | |
Variants | |
|---|---|
ST-3820 | Satoh 2WD |
ST-3840 | Satoh 4WD |
D3850 | Mitsubishi 2WD |
D3850FD | Mitsubishi 4WD |
Satoh ST-3820 Engine | |
|---|---|
Mitsubishi 1.5L 4-cyl diesel | |
Engine details ...  |
Satoh ST-3820 Transmission | |
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15-speed | |
Transmission details ...  |
Satoh ST-3820 Power | |
|---|---|
Engine | 38 hp
28.3 kW |
Mechanical | |
|---|---|
Two-wheel drive |
Dimensions & Tires | |
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Full dimensions and tires ...  |
Engine
Engine Detail — 90.9 ci / 1.5 L Diesel
Manufacturer | Mitsubishi 4DQ3 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled inline |
Displacement | 90.9 ci
1.5 L |
Bore/Stroke | 3.03x3.15 inches
77 x 80 mm |
Power | 38 hp
28.3 kW |
Rated RPM | 2700 |
Transmission
Transmission — 15 forward and 3 reverse
Gears | 15 forward and 3 reverse |
Dimensions
Satoh ST-3820 Tires |
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Dimensions |
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Recommended Implements & Sizing Guide
Engineering recommendations for Satoh ST-3820 based on its 38 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
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. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
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 Satoh ST-3820.
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
Satoh ST-3820 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Satoh ST-3820.
Converted Equivalents:
Horsepower (HP)38 hp
Kilowatts (kW)28.3 kW
Metric Horsepower (PS / CV)38.5 PS
Direct Competitor Comparison
Compare Satoh ST-3820 against same-era industry alternatives in the same horsepower class.
Current Model
Satoh
Satoh ST-3820
Engine Power:Diesel (listed): 38 hp / 28.3 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester TD-6
Engine Power:34.4
Production Years:1940 - 1969
Related models
Satoh ST-3200
- Power:
- 31.6
- Production years:
- 1977 - 1978
Satoh ST-3220
- Power:
- 31.6
- Production years:
- 1978 - 1982
Satoh ST-3240
- Power:
- 31.6
- Production years:
- 1978 - 1982
Satoh S750
- Power:
- 38
- Production years:
- 1977 - 1984
Satoh ST-3840
- Power:
- 38
- Production years:
- 1980 - 1982