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Yanmar AF-180 vs Yanmar YM1820
Verdict: Yanmar AF-180 vs Yanmar YM1820
The Yanmar AF-180 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 YM1820 is the lighter machine (1,049 kg vs 1,653 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Yanmar AF-180 is the newer design (1997 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
Variants
AF-180X
hydrostticReference
—
YM1802
—
2WD gearReference
YM1802D
—
4WD gearReference
YM1820
—
2WD power shiftReference
YM1820D
—
4WD power shiftReference
Engine
Fuel tank
20.1 LReference
—
Engine
13.3 kWReference
13.4 kWReference
Displacement
1.0 LReference
1.3 LReference
Bore/Stroke
74 x 78 mmReference
80 x 85 mmReference
Power
13.3 kWReference
13.4 kWReference
Rated RPM
2500Reference
2400Reference
Starter
electricReference
—
Starter volts
12Reference
12Reference
Transmission
Gear Weight
749 kgReference
—
Type
hydrostaticReference
creeperReference
Gears
infinite forward and reverse (3-range)Reference
12 forward and 4 reverseReference
PTO & Hydraulics
Rear PTO Type
540 (1.375)Reference
—
Engine RPM
-745@2500Reference
—
Dimensions
Wheelbase
135 cmReference
—
Weight
1653 to 1676 poundsReference
1049 kgReference
Front tire
6.00-12Reference
—
Rear tire
8.3-22Reference
—
Standard tires (ag)
Front: 6.00-12. Rear: 8.3-22Reference
—
Length
262 cmReference
264 cmReference
Width
109 cmReference
114 cmReference
Height
192 cmReference
177 cmReference
Hydro Weight
760 kgReference
—
Ground clearance
33 cmReference
—
Front tread
86 cmReference
—
Rear tread
86 cmReference
—
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
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.