Sources and field evidence
Catalog Archive: Baseline specifications compiled from historical manufacturer archives and equipment registries. Laboratory test report verification in progress.
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Engineering & Capability Benchmark
Specific output, tractive ratio, and segment percentile
Engine and power specifications
- Engine model
- Mitsubishi 4DQ3
- Fuel type
- Diesel
- Rated horsepower
- 38 hp
- Rated PTO Power
- N/A (Satoh specification)
- Cylinders
- 4
- Displacement
- 1.5 L (90.9 ci)
- Bore / stroke
- 3.03x3.15 inches 77 x 80 mm
- Rated RPM
- 2700 RPM
- Crankcase oil capacity
- N/A
- Coolant capacity
- N/A
Maintenance picks for the ST-3840
Filters, oil and common wear parts for this model.
Transmission and chassis specifications
- Transmission type
- N/A
- Gears (forward / reverse)
- 15 forward / 3 reverse
- Drive system
- 4WD
- Wheelbase
- N/A
- Front tire
- N/A
- Rear tire
- N/A
- Hydraulic flow
- N/A
- Rear hitch
- N/A
Implement Draft & Ballast Matcher
Simulate draft resistance, drawbar power transfer, and optimal axle weight distribution for Satoh ST-3840.
Engine demand (74.9 HP) exceeds rated power (38 HP). Reduce working speed by 1.0-1.5 mph or reduce working width.
Instant Used Market Valuation Projector
Algorithmic resale estimate for Satoh ST-3840 (1980)
Direct Segment Rivals & Showdowns
Head-to-head match-ups calibrated by horsepower and era
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Satoh
Japan • 44 Models
Satoh is an international brand primarily known for its agricultural machinery and lawn equipment. Established in 1900, the brand has a long history of providing machinery solutions tailored for the agricultural sector and landscaping needs. Satoh's product range traditionally includes tractors, tillers, mowers, and other equipment essential for both small-scale and large-scale farming operations, as well as for maintaining lawns and gardens. While the brand's headquarters city is not specified in available records, its international presence suggests a widespread distribution and recognition across various global markets. Satoh's longevity and specialization in agricultural and lawn equipment highlight its role in supporting farming communities and landscaping professionals worldwide. Despite being an older brand, it has managed to sustain its relevance in the industry by adapting to technological advancements and evolving customer needs.
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