Compare/Yanmar AC-18 vs Yanmar YMG1800

Yanmar AC-18 vs Yanmar YMG1800

Verdict: Yanmar AC-18 vs Yanmar YMG1800

The Yanmar AC-18 and the Yanmar YMG1800 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 1,676 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Yanmar YMG1800 holds more fuel (20.4 L vs 18.2 L) for longer stints between fills. Yanmar AC-18 is the newer design (2002 vs 1981). 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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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Yanmar

Fit score

Best match

Clear

Yanmar

Fit score

Best match

Clear

Rated power

18 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

YanmarReference

liquid-cooledReference

With 8.3-22 rear tires.Reference

Drive

crawlerReference

—

Engine

Fuel tank

18.2 LReference

20.4 LReference

Engine

13.4 kWReference

13.3 kWReference

Displacement

1.0 LReference

1.3 LReference

Bore/Stroke

74 x 78 mmReference

80 x 85 mmReference

Power

13.4 kWReference

13.3 kWReference

Rated RPM

2600Reference

2400Reference

Starter

electricReference

Starter volts

12Reference

Transmission

Type

hydrostaticReference

—

Gears

infinite forward and reverse (2-range)Reference

12 forward and 4 reverseReference

Dimensions

Weight

645 kgReference

1676 to 1786 poundsReference

Length

220 cmReference

242 cmReference

Width

119 cmReference

114 cmReference

Height

176 cmReference

—

Ground clearance

34 cmReference

—

Wheelbase

—

147 cmReference

Front tire

—

5-14Reference

2WD:4.00-12:8.3-22 4WD} Rear tire

—

8.3-22Reference

2WD Standard tires (ag)

—

Front: 5-14. Rear: 8.3-22Reference

Height (exhaust)

—

178 cmReference

2WD Weight

—

760 kgReference

4WD Weight

—

810 kgReference

2WD Ground clearance

—

32 cmReference

4WD Ground clearance

—

29 cmReference

2WD Front tread

—

84 cmReference

4WD Front tread

—

91 cmReference

Rear tread

—

89/102 cmReference

Electrical

Ground

negativeReference

Battery volts

12Reference

Battery AH

—

70Reference

Variants

YMG1800D

—

4WDReference

PTO & Hydraulics

Rear Type

—

JIS0Reference

Rear PTO Type

—

540 (1.375)Reference

Engine RPM

—

1096@2400Reference

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.