Shibaura ST318 Tractor

Manufacturer Shibaura
Price -
Model ST318
Equipment Type Compact Utility Tractors
Factory Matsumoto, Japan

SHIBAURA ST318 POWER

Engine 18hp / 13.4kW
PTO (claimed) 15hp / 11.2kW

ENGINE DETAIL

The Shibaura ST318 tractor features a compact 1.0L, 3-cylinder diesel engine that delivers 18hp, making it suitable for light agricultural tasks and small-scale landscaping. With a high compression ratio of 23:1, it offers improved efficiency and torque characteristics, but operators should be mindful of potential challenges in cold starts and fuel quality. The electric starter and sufficient oil and coolant capacities enhance operational reliability; however, the limited power output may restrict its utility for more demanding tasks or heavy equipment attachments.

Description Shiabaura S753 diesel 3-cylinder liquid-cooled
Displacement 58.2ci / 1.0L
Bore/Stroke 2.95x2.83inches / 75x 72mm
Power 18hp / 13.4kW
Compression 23:1
Rated RPM 2600
Starter electric
Starter volts 12
Oil capacity 3.5qts / 3.3L
Coolant capacity 3.7qts / 3.5L

SHIBAURA ST318 ENGINE

The Shibaura ST318 features a compact 1.0L 3-cylinder diesel engine, providing efficient fuel consumption and adequate power for light-duty agricultural tasks. Its compact design allows for improved maneuverability in confined spaces but may limit performance for larger implements. Key considerations include the balance between horsepower output and operational efficiency, making it ideal for small farms or gardens but potentially underpowered for heavy-duty operations.

Description Shiabaura 1.0L 3-cyl diesel

TRANSMISSIONS OVERVIEW

The Shibaura ST318 features a 9-speed gear transmission combined with a hydrostatic drive, offering versatility and precision in varying terrain conditions. This setup allows for smooth speed adjustments, enhancing maneuverability and operator comfort, especially in tight spaces or during delicate tasks. However, the complexity of the hydrostatic system may require more maintenance and can lead to higher repair costs compared to simpler gear-only systems.

Description 9-speed gear/hydrostatic

TRANSMISSION 1

The Shibaura ST318 tractor features a 9 forward and 3 reverse gear configuration, providing versatility in various field operations. The dry disc clutch system enhances durability but may require precise engagement to prevent slippage under heavy loads. Ideal for medium to small agricultural tasks, the gearbox allows for efficient maneuvering and control in tight spaces.

Type gear
Gears 9 forward and 3 reverse
Clutch dry disc

SPEEDS 1

Description With 8-16 rear tires

TRANSMISSION 2

The Shibaura ST318 features a hydrostatic transmission that provides seamless speed control without the need for shifting gears, enhancing operator comfort and precision in various tasks. Its infinite forward and reverse gears allow for versatile maneuverability, ideal for applications in tight spaces or when working with multiple implements. However, hydrostatic systems can sometimes result in higher maintenance costs and reduced fuel efficiency under heavy loads compared to traditional gear-driven tractors.

Type hydrostatic
Gears infinite (2-range) forward and reverse

SPEEDS 2

Description With 29x12.00-15 R3 rear tires

MECHANICAL

The Shibaura ST318 tractor features a robust 4x4 MFWD chassis with a mechanical rear differential lock, enhancing traction in challenging terrains. Its power steering and wet disc brakes offer improved maneuverability and consistent stopping power, respectively, contributing to operator safety and comfort. With a versatile 9-speed gear/hydrostatic transmission, it provides efficient power management for varying field tasks, suitable for both light-duty and moderate agricultural applications.

Chassis 4x4 MFWD 4WD
Differential lock mechanical rear
Steering power
Brakes wet disc
Cab Two-post folding ROPS
Transmissions 9-speed gear/hydrostatic

CAPACITY

Fuel 5.3gal / 20.1L
Hydraulic system 4.2gal / 15.9L

HYDRAULICS

Type open center
Capacity 4.2gal / 15.9L
Pressure 1849psi / 127.5bar
Pump flow 4gpm / 15.1lpm

TRACTOR HITCH

Rear Type I
Rear lift 1474lbs / 668kg

POWER TAKE-OFF (PTO)

Gear Rear PTO transmission
Hydro Rear PTO live
Rear RPM 540 (1.375)
Gear/ 561@2600 hydro} Engine RPM 588@2600
Mid PTO optional
Mid RPM 2000
Gear/ 2040@2600 hydro} Engine RPM 2139@2600

SHIBAURA ST318 TIRES

The Shibaura ST318 tractor features dual tire configurations for agricultural and turf applications, which enhances versatility across different terrains. The smaller Ag front tires (5-12) provide better maneuverability in tight spaces, while the larger turf rear tires (29x12.00-15) optimize traction and stability on softer ground. A potential challenge is the trade-off between agility and load capacity, especially in agricultural tasks where heavier implements may require a different tire setup for optimal performance.

Ag front 5-12
Ag rear 8-16
Lawn/turf front 20x8.00-10
Lawn/turf rear 29x12.00-15

DIMENSIONS

Wheelbase 55.3inches / 140cm
Length 107.4inches / 272cm
Gear Width 41inches / 104cm
Hydro Width 46.8inches / 118cm
Gear Height (ROPS) 89.1inches / 226cm
Hydro Height (ROPS) 88.2inches / 224cm
Gear Weight 1625lbs / 737kg
Hydro Weight 1653lbs / 749kg
Gear Clearance (front axle) 9.6inches / 24cm
Hydro Clearance (front axle) 9.8inches / 24cm
Front tread 32.4inches / 82cm
Rear tread 33.5 to 39.3inches / 85to 99cm

DIMENSIONS & TIRES

The Shibaura ST318, with a wheelbase of 55.3 inches and a weight range of 1625 to 1653 pounds, illustrates excellent maneuverability suitable for tight spaces in landscaping or small farm operations. Its tire dimensions (front 5-12, rear 8-16) provide a good balance between traction and flotation, making it effective on varied terrain but potentially limiting performance in heavy mud conditions. For optimal use, consider scenarios involving light-duty tasks such as tillage or mowing, where its lightweight frame can enhance efficiency without compromising stability.

Wheelbase 55.3inches / 140cm
Weight 1625 to 1653 pounds
Front tire 5-12
Rear tire 8-16

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 40
Charging volts 14
Battery volts 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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