Shibaura ST318
The Shibaura ST318 is a tractor produced by Shibaura. It is equipped with a 58.2 ci 1.0 L engine. The listed engine power is Diesel (listed): 18 hp / 13.4 kW. Transmission: infinite forward and reverse (2-range). Operating weight: 1625 to 1653 pounds.
Engine Power
Diesel (listed): 18 hp / 13.4 kW
Fuel & Capacities
5.3 gal
20.1 L
Transmission
infinite forward and reverse (2-range)
Operating Weight
1625 to 1653 pounds
Overview
 | ST SeriesCompact Utility tractor |
|---|---|
ST Series | |
Compact Utility tractor | |
Production | |
|---|---|
Manufacturer | Shibaura |
Compact Utility tractor | |
Built in Matsumoto, Japan | |
Shibaura ST318 Engine | |
|---|---|
Shiabaura 1.0L 3-cyl diesel | |
Engine details ...  |
Shibaura ST318 Power | |
|---|---|
Engine | 18 hp
13.4 kW |
PTO (claimed) | 15 hp
11.2 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Differential lock | mechanical rear |
Power steering | |
Wet disc brakes | |
Two-post folding ROPS. | |
Capacity | |
|---|---|
Fuel | 5.3 gal
20.1 L |
Hydraulic system | 4.2 gal
15.9 L |
Hydraulics | |
|---|---|
Type | open center |
Capacity | 4.2 gal
15.9 L |
Pressure | 1849 psi
127.5 bar |
Pump flow | 4 gpm
15.1 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift | 1474 lbs
668 kg |
Power Take-off (PTO) | |
|---|---|
Gear Rear PTO | transmission |
Hydro Rear PTO | live |
Rear PTO Type | 540 (1.375) |
Gear Engine RPM | 588@2600 |
Hydro Engine RPM | 561@2600 |
Mid PTO | optional |
Mid PTO Type | 2000 |
Gear Engine RPM | 2139@2600 |
Hydro Engine RPM | 2040@2600 |
Dimensions & Tires | |
|---|---|
Wheelbase | 55.3 inches
140 cm |
Weight | 1625 to 1653 pounds |
Front tire | 5-12 |
Rear tire | 8-16 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 40 |
Charging volts | 14 |
Battery volts | 12 |
References | |
|---|---|
 | |
ST318 ST321 ST324 Workshop Manual |
Engine
Engine Detail — 58.2 ci / 1.0 L Diesel
Manufacturer | Shiabaura S753 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 58.2 ci
1.0 L |
Bore/Stroke | 2.95x2.83 inches
75 x 72 mm |
Power | 18 hp
13.4 kW |
Compression | 23:1 |
Rated RPM | 2600 |
Starter | electric |
Starter volts | 12 |
Oil capacity | 3.5 qts
3.3 L |
Coolant capacity | 3.7 qts
3.5 L |
Transmission
Transmission options | |
|---|---|
9-speed gear | |
hydrostatic |
Transmission — 9 forward and 3 reverse gear
Type | gear |
Gears | 9 forward and 3 reverse |
Clutch | dry disc |
With 8-16 rear tires. | |
 | |
Transmission — infinite forward and reverse (2-range) hydrostatic
Type | hydrostatic |
Gears | infinite forward and reverse (2-range) |
With 29x12.00-15 R3 rear tires. | |
 | |
Dimensions
Shibaura ST318 Tires | |
|---|---|
Ag front | 5-12 |
Ag rear | 8-16 |
Lawn/turf front | 20x8.00-10 |
Lawn/turf rear | 29x12.00-15 |
Dimensions | |
|---|---|
Wheelbase | 55.3 inches
140 cm |
Length | 107.4 inches
272 cm |
Gear Width | 41 inches
104 cm |
Hydro Width | 46.8 inches
118 cm |
Gear Height (ROPS) | 89.1 inches
226 cm |
Hydro Height (ROPS) | 88.2 inches
224 cm |
Gear Weight | 1625 lbs
737 kg |
Hydro Weight | 1653 lbs
749 kg |
Gear Clearance (front axle) | 9.6 inches
24 cm |
Hydro Clearance (front axle) | 9.8 inches
24 cm |
Front tread | 32.4 inches
82 cm |
Rear tread | 33.5 to 39.3 inches
85 to 99 cm |
Photos
Shibaura ST318 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Shibaura ST318 based on its 18 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 Shibaura ST318.
Estimated Continuous Field Runtime: 5.7 hrs
Approximately 5.7 hours of continuous field operation at ~75% rated power on a full tank (5.3 gal / 20.1 L).
Estimated 75% Load Fuel Burn~0.9 gal/hr (3.5 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
Shibaura ST318 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Shibaura ST318.
Converted Equivalents:
Horsepower (HP)18 hp
Kilowatts (kW)13.4 kW
Metric Horsepower (PS / CV)18.2 PS
Direct Competitor Comparison
Compare Shibaura ST318 against same-era industry alternatives in the same horsepower class.
Current Model
Shibaura
Shibaura ST318
Engine Power:Diesel (listed): 18 hp / 13.4 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester Type A 15HP
Engine Power:16.7
Production Years:1908 - 1911
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