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Shibaura ST321 vs Shibaura SX21
Verdict: Shibaura ST321 vs Shibaura SX21
The Shibaura ST321 and the Shibaura SX21 are both tractors — here is how they stack up on the figures that matter. Shibaura ST321 leads on rated power with 17 hp against 16 hp. Shibaura SX21 is the lighter machine (694 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 ST321 for outright pulling power, or the Shibaura SX21 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
17 hp
16 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
ShibauraReference
ShibauraReference
With 29x12.00-15 R3 rear tires.Reference
With 26x12.00-12 rear tires.Reference
Differential lock
mechanical rearReference
—
Steering
—
powerReference
Engine
Engine
15.7 kWReference
15.7 kWReference
Displacement
1.0 LReference
1.0 LReference
Bore/Stroke
77 x 72 mmReference
75 x 72 mmReference
Power
15.7 kWReference
15.7 kWReference
Compression
23:1Reference
24:1Reference
Rated RPM
2600Reference
3000Reference
Starter
electricReference
—
Starter volts
12Reference
12Reference
Oil capacity
3.3 LReference
13.0 LReference
Coolant capacity
3.5 LReference
3.5 LReference
Fuel tank
—
29.5 LReference
Idle RPM
—
1300-3200Reference
Firing order
—
1-2-3Reference
Starter power
—
1.2 kWReference
Intake valve clearance
—
0.203 mmReference
Exhaust valve clearance
—
0.203 mmReference
Transmission
Gear Width
113 cmReference
—
Gear Height (ROPS)
228 cmReference
—
Gear Weight
753 kgReference
—
Gear Clearance (front axle)
26 cmReference
—
Gears
infinite forward and reverse (2-range)Reference
infinite forward and reverseReference
Clutch
dry discReference
—
PTO & Hydraulics
PTO (claimed)
12.7 kWReference
11.9 kWReference
Hydraulic system
15.9 LReference
—
Type
hydrostaticReference
hydrostaticReference
Capacity
15.9 LReference
—
Pressure
127.5 barReference
130.0 barReference
Pump flow
18.5 lpmReference
14.2 lpmReference
Rear Type
IReference
IReference
Rear lift
668 kgReference
—
Gear Rear PTO
transmissionReference
—
Hydro Rear PTO
liveReference
—
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Gear Engine RPM
2139@2600Reference
—
Hydro Engine RPM
2040@2600Reference
—
Mid PTO
optionalReference
standardReference
Mid PTO Type
2000Reference
2200Reference
Valves
—
1Reference
Steering flow
—
7.0 lpmReference
Rear lift (at 24"/610mm)
—
317 kgReference
Rear PTO
—
liveReference
Engine RPM
—
2200@3020Reference
Capacities
Fuel
20.1 LReference
—
Dimensions
Wheelbase
140 cmReference
139 cmReference
Weight
1649 to 1662 poundsReference
694 kgReference
Front tire
6-12Reference
4.00-9Reference
Rear tire
9.5-16Reference
7-14Reference
Ag front
6-12Reference
4.00-9Reference
Ag rear
9.5-16Reference
7-14Reference
Lawn/turf front
20x8.00-10Reference
18x8.50-8Reference
Lawn/turf rear
29x12.00-15Reference
26x12.00-12Reference
Length
272 cmReference
248 cmReference
Hydro Width
118 cmReference
—
Hydro Height (ROPS)
224 cmReference
—
Hydro Weight
747 kgReference
—
Hydro Clearance (front axle)
22 cmReference
—
Front tread
84 cmReference
90 cmReference
Rear tread
89 to 95 cmReference
90 cmReference
Width
—
109 cmReference
Ground clearance
—
23 cmReference
Steering wheel
—
127 cmReference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
40Reference
40Reference
Charging volts
14Reference
—
Battery volts
12Reference
12Reference
Speeds
Shibaura SX21 Height
Hood
—
113 cmReference
ROPS
—
228 cmReference
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.