Head to head · Sub-Compact

AGCO ST40 vs Yanmar AF342

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AGCOModel A

AGCO ST40

Sub-Compact

power
40.1 hp
displacement
91.4 ci
Cylinders
3
Forward gears
16
Full ST40 specs
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YanmarModel B

Yanmar AF342

Utility

power
42 hp
displacement
134 ci
Cylinders
4
Forward gears
16
Full AF342 specs
AGCOAGCO ST40
vs
YanmarYanmar AF342

How they compare

Headline specs vs. the whole Sub-Compact

n = 584–816

Engine Power

▲ AF342 higher · +1.9 hp (+5%)
ST4040.1 hp
AF34242 hp
Median Sub-Compact Tractor26.9 hp

ST40 is in the 77th percentile; AF342 is in the 80th · 816 models

Engine Displacement

▲ AF342 higher · +42.6 ci (+47%)
ST4091.4 ci
AF342134 ci
Median Sub-Compact Tractor91.4 ci

ST40 is in the 50th percentile; AF342 is in the 73rd · 757 models

Cylinders

▲ AF342 higher · +1 (+33%)
ST403
AF3424
Median Sub-Compact Tractor3

ST40 is in the 50th percentile; AF342 is in the 90th · 802 models

Forward Gears

= Effectively tied
ST4016
AF34216
Median Sub-Compact Tractor9

ST40 is in the 89th percentile; AF342 is in the 89th · 616 models

ST40 (A)AF342 (B)Median Sub-Compact Tractor

Full comparison

Every spec, side by side

General Information

SpecAGCO ST40Yanmar AF342Difference
ManufacturerAGCOYanmar—
ModelST40AF342—
CategorySub-CompactUtility, Sub-Compact—

Engine

SpecAGCO ST40Yanmar AF342Difference
ManufacturerIsekiYanmar—
ModelE3CD4TNE88—
Power Output40.1hp42hp▲ AF342+1.9 hp · +5%
Rated RPM2,600RPM2,600RPMSame
Cylinders34▲ AF342+1 · +33%
Displacement91.4ci134ci▲ AF342+42.6 ci · +47%
Bore3.4inNot recorded—
Stroke3.3inNot recorded—

Transmission

SpecAGCO ST40Yanmar AF342Difference
TypeMultiple options available (synchronized shuttle, power shuttle, hydrostatic)Power shuttle—

Dimensions & Weight

SpecAGCO ST40Yanmar AF342Difference
Length122in130in▲ AF342+8 in · +7%
Width60.2in59.1in▲ ST40+1.1 in · +2%
Height94.4in77.4in▲ ST40+17 in · +22%
Operating Weight3,323lb3,197lb▲ ST40+126 lb · +4%

Hydraulics

SpecAGCO ST40Yanmar AF342Difference
System TypeOpen CenterNot recorded—
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAGCO ST40Yanmar AF342Difference
TypeRear PTO: 540, Mid PTO: SAE 15 1.0Not recorded—
Speed 1540rpmNot recorded—

Tires

SpecAGCO ST40Yanmar AF342Difference
Rear Tire Size13.6-24Not recorded—

Hitch & Towing

SpecAGCO ST40Yanmar AF342Difference
Hitch TypeRearNot recorded—
Hitch CategoryIISame
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAGCO ST40Yanmar AF342Difference
Chassis Type4WD4x4 MFWD 4WD—
Drive Type4WD4WDSame
Steering TypePowerPowerSame

Electrical

SpecAGCO ST40Yanmar AF342Difference
Starter TypeElectricElectricSame

Capacities

SpecAGCO ST40Yanmar AF342Difference
Coolant1.7galNot recorded—

Operator Station

SpecAGCO ST40Yanmar AF342Difference
TypeROPSNot recorded—

Category context

Both models against the field

Engine Power

median 26.9 hp
A · 77th percentile (40.1 hp)B · 80th percentile (42 hp)

Engine Displacement

median 91.4 ci
A · 50th percentile (91.4 ci)B · 73rd percentile (134 ci)

Cylinders

median 3
A · 50th percentile (3)B · 90th percentile (4)

Forward Gears

median 9
A · 89th percentile (16)B · 89th percentile (16)

Operating Weight

median 2,700 lb
A · 63rd percentile (3,323 lb)B · 60th percentile (3,197 lb)
A · ST40B · AF342Median Sub-Compact Tractor
Full spec pageAGCO ST40Full spec pageYanmar AF342