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Shibaura SP1840 vs Shibaura ST321
Verdict: Shibaura SP1840 vs Shibaura ST321
The Shibaura SP1840 and the Shibaura ST321 are both tractors — here is how they stack up on the figures that matter. Shibaura SP1840 leads on rated power with 18 hp against 17 hp. Shibaura SP1840 is the lighter machine (580 kg vs 1,649 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the Shibaura SP1840 for outright pulling power, or the Shibaura ST321 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Shibaura
62
Fit score
Best match
Clear
Shibaura
62
Fit score
Best match
Clear
Rated power
18 hp
17 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
ShibauraReference
ShibauraReference
liquid-cooledReference
With 29x12.00-15 R3 rear tires.Reference
Differential lock
—
mechanical rearReference
Variants
SP1800
2WDReference
—
SP1840
4WDReference
—
Engine
Fuel tank
18.2 LReference
—
Engine
13.3 kWReference
15.7 kWReference
Displacement
0.9 LReference
1.0 LReference
Bore/Stroke
72 x 72 mmReference
77 x 72 mmReference
Power
13.3 kWReference
15.7 kWReference
Compression
23:1Reference
23:1Reference
Rated RPM
2600Reference
2600Reference
Torque
50.0 NmReference
—
Torque RPM
1800Reference
—
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Starter power
1.0 kWReference
—
Oil capacity
13.0 LReference
3.3 LReference
Coolant capacity
3.2 LReference
3.5 LReference
Transmission
Gears
9 forward and 3 reverseReference
infinite forward and reverse (2-range)Reference
Clutch
dry discReference
dry discReference
Gear Width
—
113 cmReference
Gear Height (ROPS)
—
228 cmReference
Gear Weight
—
753 kgReference
Gear Clearance (front axle)
—
26 cmReference
PTO & Hydraulics
Type
creeperReference
hydrostaticReference
Rear Type
0Reference
IReference
Control
position controlReference
—
Rear lift
1300 kgReference
668 kgReference
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Engine RPM
1053@2600Reference
—
PTO (claimed)
—
12.7 kWReference
Hydraulic system
—
15.9 LReference
Capacity
—
15.9 LReference
Pressure
—
127.5 barReference
Pump flow
—
18.5 lpmReference
Gear Rear PTO
—
transmissionReference
Hydro Rear PTO
—
liveReference
Gear Engine RPM
—
2139@2600Reference
Hydro Engine RPM
—
2040@2600Reference
Mid PTO
—
optionalReference
Mid PTO Type
—
2000Reference
Dimensions
Wheelbase
128 cmReference
140 cmReference
Weight
580 kgReference
1649 to 1662 poundsReference
Front tire
5.00-12Reference
6-12Reference
Rear tire
8.3-20Reference
9.5-16Reference
Standard tires (ag)
Front: 5.00-12. Rear: 8.3-20Reference
—
Length
221 cmReference
272 cmReference
Width
101 cmReference
—
Height
122 cmReference
—
Ground clearance
26 cmReference
—
Front tread
78 cmReference
84 cmReference
Rear tread
74/80 cmReference
89 to 95 cmReference
Ag front
—
6-12Reference
Ag rear
—
9.5-16Reference
Lawn/turf front
—
20x8.00-10Reference
Lawn/turf rear
—
29x12.00-15Reference
Hydro Width
—
118 cmReference
Hydro Height (ROPS)
—
224 cmReference
Hydro Weight
—
747 kgReference
Hydro Clearance (front axle)
—
22 cmReference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
15Reference
40Reference
Battery volts
12Reference
12Reference
Battery AH
65Reference
—
Charging volts
—
14Reference
Capacities
Fuel
—
20.1 LReference
Speeds
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.