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Yanmar AC-18 vs Yanmar AF-18
Verdict: Yanmar AC-18 vs Yanmar AF-18
The Yanmar AC-18 and the Yanmar AF-18 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 749 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Yanmar AF-18 holds more fuel (20.1 L vs 18.2 L) for longer stints between fills. Yanmar AC-18 is the newer design (2002 vs 1992). 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
—
—
Overview
Manufacturer
YanmarReference
YanmarReference
liquid-cooledReference
liquid-cooledReference
Drive
crawlerReference
—
Engine
Fuel tank
18.2 LReference
20.1 LReference
Engine
13.4 kWReference
13.3 kWReference
Displacement
1.0 LReference
1.0 LReference
Bore/Stroke
74 x 78 mmReference
74 x 78 mmReference
Power
13.4 kWReference
13.3 kWReference
Rated RPM
2600Reference
2500Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Transmission
Type
hydrostaticReference
creeperReference
Gears
infinite forward and reverse (2-range)Reference
12 forward and reverseReference
Dimensions
Weight
645 kgReference
749 kgReference
Length
220 cmReference
262 cmReference
Width
119 cmReference
109 cmReference
Height
176 cmReference
188 cmReference
Ground clearance
34 cmReference
33 cmReference
Wheelbase
—
135 cmReference
Front tire
—
6.00-12Reference
Rear tire
—
8.3-22Reference
Standard tires (ag)
—
Front: 6.00-12. Rear: 8.3-22Reference
Front tread
—
85 cmReference
Rear tread
—
86 cmReference
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Battery AH
—
45Reference
PTO & Hydraulics
Rear PTO Type
—
540 (1.375)Reference
Engine RPM
—
-745@2500Reference
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.