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Shibaura SD3903 vs Shibaura SD4003
Verdict: Shibaura SD3903 vs Shibaura SD4003
The Shibaura SD3903 and the Shibaura SD4003 are both tractors — here is how they stack up on the figures that matter. Shibaura SD4003 leads on rated power with 40 hp against 39 hp. Shibaura SD4003 is the lighter machine (1,641 kg vs 1,652 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 SD4003 for outright pulling power, or the Shibaura SD3903 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
39 hp
40 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
ShibauraReference
ShibauraReference
liquid-cooled inlineReference
liquid-cooled inlineReference
Engine
Engine
29.1 kWReference
29.8 kWReference
Displacement
1.5 LReference
2.1 LReference
Power
29.1 kWReference
29.8 kWReference
Rated RPM
2750Reference
—
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Bore/Stroke
—
85 x 94 mmReference
Transmission
Type
creeperReference
creeperReference
Gears
24 forward and 8 reverseReference
24 forward and 8 reverseReference
PTO & Hydraulics
Rear Type
IReference
IReference
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Dimensions
Weight
1652 kgReference
1641 kgReference
Front tire
6.00-16Reference
6.00-16Reference
Rear tire
12.4/11-28Reference
12.4/11-28Reference
Standard tires (ag)
Front: 6.00-16. Rear: 12.4/11-28Reference
Front: 6.00-16. Rear: 12.4/11-28Reference
Length
335 cmReference
337 cmReference
Width
152 cmReference
152 cmReference
Height
193 cmReference
193 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.