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Shibaura SL1603 vs Shibaura SX21
Verdict: Shibaura SL1603 vs Shibaura SX21
The Shibaura SL1603 and the Shibaura SX21 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 16 hp. Shibaura SL1603 is the lighter machine (620 kg vs 694 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Shibaura
62
Fit score
Best match
Clear
Shibaura
62
Fit score
Best match
Clear
Rated power
16 hp
16 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
ShibauraReference
ShibauraReference
Five gears (1-5), plus reverse (R) in two ranges (low/high).Reference
With 26x12.00-12 rear tires.Reference
Steering
—
powerReference
Variants
SL1603
2WDReference
—
SL1643
4WDReference
—
Engine
Engine
11.9 kWReference
15.7 kWReference
Displacement
1.0 LReference
1.0 LReference
Bore/Stroke
71 x 80 mmReference
75 x 72 mmReference
Power
11.9 kWReference
15.7 kWReference
Air cleaner
dryReference
—
Rated RPM
2600Reference
3000Reference
Operating RPM
1000-2600Reference
—
Starter volts
12Reference
12Reference
Fuel tank
—
29.5 LReference
Compression
—
24:1Reference
Idle RPM
—
1300-3200Reference
Firing order
—
1-2-3Reference
Starter power
—
1.2 kWReference
Oil capacity
—
13.0 LReference
Coolant capacity
—
3.5 LReference
Intake valve clearance
—
0.203 mmReference
Exhaust valve clearance
—
0.203 mmReference
Transmission
Type
gearReference
hydrostaticReference
Gears
10 forward and 2 reverseReference
infinite forward and reverseReference
PTO & Hydraulics
Rear Type
IReference
IReference
PTO (claimed)
—
11.9 kWReference
Pressure
—
130.0 barReference
Valves
—
1Reference
Pump flow
—
14.2 lpmReference
Steering flow
—
7.0 lpmReference
Rear lift (at 24"/610mm)
—
317 kgReference
Rear PTO
—
liveReference
Rear PTO Type
—
540 (1.375)Reference
Engine RPM
—
2200@3020Reference
Mid PTO
—
standardReference
Mid PTO Type
—
2200Reference
Dimensions
Weight
620 kgReference
694 kgReference
Length
215 cmReference
248 cmReference
Width
104 cmReference
109 cmReference
Height
172 cmReference
—
Wheelbase
—
139 cmReference
Front tire
—
4.00-9Reference
Rear tire
—
7-14Reference
Ag front
—
4.00-9Reference
Ag rear
—
7-14Reference
Lawn/turf front
—
18x8.50-8Reference
Lawn/turf rear
—
26x12.00-12Reference
Ground clearance
—
23 cmReference
Front tread
—
90 cmReference
Rear tread
—
90 cmReference
Steering wheel
—
127 cmReference
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Charging system
—
alternatorReference
Charging amps
—
40Reference
Shibaura SX21 Height
Hood
—
113 cmReference
ROPS
—
228 cmReference
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.