Compare/Yanmar AC-18 vs Yanmar YM187

Yanmar AC-18 vs Yanmar YM187

Verdict: Yanmar AC-18 vs Yanmar YM187

The Yanmar AC-18 and the Yanmar YM187 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 1,523 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Yanmar YM187 holds more fuel (20.1 L vs 18.2 L) for longer stints between fills. Yanmar AC-18 is the newer design (2002 vs 1986). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

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

Three gears (1-3) plus reverse (R) in three ranges. Dashboard-mounted gear shifter.Reference

Drive

crawlerReference

—

Steering

—

power optionalReference

Engine

Fuel tank

18.2 LReference

20.1 LReference

Engine

13.4 kWReference

Displacement

1.0 LReference

0.9 LReference

Bore/Stroke

74 x 78 mmReference

72 x 74 mmReference

Power

13.4 kWReference

Rated RPM

2600Reference

Starter

electricReference

Starter volts

12Reference

Compression

—

23:1Reference

Firing order

—

1-3-2Reference

Oil capacity

—

3.2 LReference

Coolant capacity

—

4.2 LReference

Transmission

Type

hydrostaticReference

three-speed power shiftReference

Gears

infinite forward and reverse (2-range)Reference

9 forward and 3 reverseReference

Clutch

—

dry discReference

Dimensions

Weight

645 kgReference

1523 to 1658 poundsReference

Length

220 cmReference

270 cmReference

Width

119 cmReference

127 cmReference

Height

176 cmReference

—

Ground clearance

34 cmReference

—

Wheelbase

—

146 cmReference

Front tire

—

6.50-10Reference

2WD Rear tire

—

12.4-16Reference

2WD Standard tires (ag)

—

Front: 6.50-10. Rear: 12.4-16Reference

4WD Standard tires (ag)

—

Front: 6-12. Rear: 12.4-16Reference

Lawn/turf front

—

20x8.00-10Reference

Lawn/turf rear

—

31x15.5-15Reference

2WD Weight

—

690 kgReference

4WD Weight

—

752 kgReference

2WD Clearance (drawbar)

—

32 cmReference

4WD Clearance (drawbar)

—

27 cmReference

2WD Front tread

—

83 cmReference

4WD Front tread

—

87 cmReference

Rear tread

—

95 to 105 cmReference

2WD Steering wheel

—

133 cmReference

4WD Steering wheel

—

134 cmReference

Electrical

Ground

negativeReference

Battery volts

12Reference

Variants

YM187

—

2WDReference

YM187D

—

4WDReference

PTO & Hydraulics

Rear Type

—

IReference

Control

—

position controlReference

Rear lift (at ends)

—

469 kgReference

Rear PTO Type

—

540/1000 (1.375)Reference

Yanmar YM187 attachments

Attachment overview

60" Mower deck

Cutting width

—

152 cmReference

Cut height

—

5 to 10 cmReference

Yanmar YBH670 Backhoe

Backhoe type

—

Yanmar YBH670 BackhoeReference

Bucket width

—

60 cmReference

Digging depth

—

200 cmReference

Loading height

—

132 cmReference

Swing Arc

—

180°Reference

Bucket force

—

1179 kgReference

Dipperstick force

—

733 kgReference

Yanmar YM187 Height

ROPS

—

215 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.