Satoh ST-1840
The Satoh ST-1840 is a tractor produced by Satoh. The listed engine power is Diesel (listed): 17.8 hp / 13.3 kW. Transmission: 9 forward and 3 reverse.
Engine Power
Diesel (listed): 17.8 hp / 13.3 kW
Fuel & Capacities
Diesel
Transmission
9 forward and 3 reverse
Overview
 | 1977 - 1980
Compact Utility tractor |
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Production | |
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Manufacturer | Satoh |
Compact Utility tractor | |
Variants | |
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ST-1820 | 2WD |
ST-1840 | 4WD |
Satoh ST-1840 Engine | |
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Mitsubishi 4-cyl diesel | |
Engine details ...  |
Satoh ST-1840 Transmission | |
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9-speed gear | |
Transmission details ...  |
Satoh ST-1840 Power | |
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Engine | 17.8 hp
13.3 kW |
Mechanical | |
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Four-wheel drive | |
Open operator station. |
Dimensions & Tires | |
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Full dimensions and tires ...  |
Engine
Engine Detail — Diesel
Manufacturer | Mitsubishi |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Power | 17.8 hp
13.3 kW |
Transmission
Transmission — 9 forward and 3 reverse gear
Type | gear |
Gears | 9 forward and 3 reverse |
Three gears, plus reverse, in three ranges. | |
Dimensions
Satoh ST-1840 Tires |
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Dimensions |
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Photos
Satoh ST-1840
Recommended Implements & Sizing Guide
Engineering recommendations for Satoh ST-1840 based on its 17.8 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. |
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-1840.
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-1840 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Satoh ST-1840.
Converted Equivalents:
Horsepower (HP)17.8 hp
Kilowatts (kW)13.3 kW
Metric Horsepower (PS / CV)18 PS
Direct Competitor Comparison
Compare Satoh ST-1840 against same-era industry alternatives in the same horsepower class.
Current Model
Satoh
Satoh ST-1840
Engine Power:Diesel (listed): 17.8 hp / 13.3 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester Type A 15HP
Engine Power:16.7
Production Years:1908 - 1911
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