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Yanmar AC-18 vs Yanmar YM1820
Verdict: Yanmar AC-18 vs Yanmar YM1820
The Yanmar AC-18 and the Yanmar YM1820 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 18 hp. Yanmar AC-18 is the lighter machine (645 kg vs 1,049 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Yanmar AC-18 is the newer design (2002 vs 1982). 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
Yanmar
62
Fit score
Best match
Clear
Yanmar
62
Fit score
Best match
Clear
Rated power
18 hp
18 hp
Confidence
40%
40%
Guide price
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Overview
Manufacturer
YanmarReference
YanmarReference
liquid-cooledReference
Three power shift gears, plus reverse, with three ranges.Reference
Drive
crawlerReference
—
Engine
Fuel tank
18.2 LReference
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Engine
13.4 kWReference
13.4 kWReference
Displacement
1.0 LReference
1.3 LReference
Bore/Stroke
74 x 78 mmReference
80 x 85 mmReference
Power
13.4 kWReference
13.4 kWReference
Rated RPM
2600Reference
2400Reference
Starter
electricReference
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Starter volts
12Reference
12Reference
Transmission
Type
hydrostaticReference
creeperReference
Gears
infinite forward and reverse (2-range)Reference
12 forward and 4 reverseReference
Dimensions
Weight
645 kgReference
1049 kgReference
Length
220 cmReference
264 cmReference
Width
119 cmReference
114 cmReference
Height
176 cmReference
177 cmReference
Ground clearance
34 cmReference
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Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Variants
YM1802
—
2WD gearReference
YM1802D
—
4WD gearReference
YM1820
—
2WD power shiftReference
YM1820D
—
4WD power shiftReference
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.