Satoh Beaver III S373

The Satoh Beaver III S373 is a tractor produced by Satoh. It is equipped with a 47.4 ci 0.8 L engine. The listed engine power is Diesel (listed): 16.5 hp / 12.3 kW. Transmission: 8 forward and 2 reverse. Operating weight: 1124 to 1235 pounds.

Engine Power

Diesel (listed): 16.5 hp / 12.3 kW

Fuel & Capacities

4 gal 15.1 L

Transmission

8 forward and 2 reverse

Operating Weight

1124 to 1235 pounds

Overview

	1980 - 1984 Compact Utility tractor

Production
Manufacturer	Satoh
Compact Utility tractor

Satoh S373 Engine
Mitsubishi 0.8L 3-cyl diesel
Fuel tank	4 gal 15.1 L
Engine details ...

Satoh S373 Transmission
8-speed gear
Transmission details ...

Satoh S373 Power
Engine	16.5 hp 12.3 kW
PTO (claimed)	13.6 hp 10.1 kW

Mechanical
Two- or four-wheel drive
Manual steering
Drum brakes
Open operator station.

Hydraulics
Pump flow	3.6 gpm 13.6 lpm

Tractor hitch
Rear Type	I
Control	non-positional control
Rear lift (at ends)	1433 lbs 650 kg

Power Take-off (PTO)
2WD Rear PTO	50.4
4WD Rear PTO	51.2
Rear PTO Type	565/832/1364 (1.375)

Dimensions & Tires
Weight	1124 to 1235 pounds
Front tire	4.00-9
2WD Rear tire	8-16
Full dimensions and tires ...

Electrical
Ground	negative
Battery volts	12
Battery AH	45

References

Satoh Beaver III published in 1979, by Mitsubishi

Engine

Engine Detail — 47.4 ci / 0.8 L Diesel

Manufacturer	Mitsubishi
Fuel Type	Diesel
Configuration	3-cylinder, liquid-cooled
Displacement	47.4 ci 0.8 L
Power	16.5 hp 12.3 kW
Compression	23:1
Rated RPM	2700
Starter volts	12
Oil capacity	3.1 qts 2.9 L
Coolant capacity	5.2 qts 4.9 L

Transmission

Transmission — 8 forward and 2 reverse gear

Type	gear
Gears	8 forward and 2 reverse
Clutch	dry disc
Oil capacity	12.7 qts 12.0 L

Dimensions

Satoh S373 Tires
2WD Standard tires (ag)	Front: 4.00-9. Rear: 8-16
4WD Standard tires (ag)	Front: 5-12. Rear: 8-16
2WD Lawn/turf front	18x7.00-8
4WD Lawn/turf front	6-12
Lawn/turf rear	9.5-16

Dimensions
2WD Length	77.2 inches 196 cm
4WD Length	77.4 inches 196 cm
Width	37.8 inches 96 cm
Height	46.5 inches 118 cm
2WD Weight	1124 lbs 509 kg
4WD Weight	1235 lbs 560 kg
2WD Ground clearance	10.6 inches 26 cm
4WD Ground clearance	9.3 inches 23 cm
2WD Front tread	28.3 inches 71 cm
4WD Front tread	30.9 inches 78 cm
Rear tread	29.1/35 inches 73/88 cm

Photos

Satoh Beaver III S373

Recommended Implements & Sizing Guide

Engineering recommendations for Satoh Beaver III S373 based on its 16.5 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.

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 Beaver III S373.

Estimated Continuous Field Runtime: 4.7 hrs

Approximately 4.7 hours of continuous field operation at ~75% rated power on a full tank (4 gal / 15.1 L).

Estimated 75% Load Fuel Burn~0.9 gal/hr (3.2 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