Head to head · Sub-Compact

AGCO ST40 vs John Deere 990

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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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John DeereModel B

John Deere 990

Utility

power
40.4 hp
displacement
122 ci
Cylinders
4
Forward gears
9
Full 990 specs
AGCOAGCO ST40
vs
John DeereJohn Deere 990

How they compare

Headline specs vs. the whole Sub-Compact

n = 584–816

Engine Power

▲ 990 higher · +0.3 hp (<1%)
ST4040.1 hp
99040.4 hp
Median Sub-Compact Tractor26.9 hp

ST40 is in the 77th percentile; 990 is in the 77th · 816 models

Engine Displacement

▲ 990 higher · +30.6 ci (+33%)
ST4091.4 ci
990122 ci
Median Sub-Compact Tractor91.4 ci

ST40 is in the 50th percentile; 990 is in the 68th · 757 models

Cylinders

▲ 990 higher · +1 (+33%)
ST403
9904
Median Sub-Compact Tractor3

ST40 is in the 50th percentile; 990 is in the 90th · 802 models

Forward Gears

▲ ST40 higher · +7 (+78%)
ST4016
9909
Median Sub-Compact Tractor9

ST40 is in the 89th percentile; 990 is in the 50th · 616 models

ST40 (A)990 (B)Median Sub-Compact Tractor

Full comparison

Every spec, side by side

General Information

SpecAGCO ST40John Deere 990Difference
ManufacturerAGCOJohn Deere—
ModelST40990—
CategorySub-CompactUtility—

Engine

SpecAGCO ST40John Deere 990Difference
ManufacturerIsekiYanmar—
ModelE3CD4TNE84—
Power Output40.1hp40.4hp▲ 990+0.3 hp · <1%
Rated RPM2,600RPM2,700RPM▲ 990+100 RPM · +4%
Cylinders34▲ 990+1 · +33%
Displacement91.4ci122ci▲ 990+30.6 ci · +33%
Bore3.4in3.3in▲ ST40+0.1 in · +3%
Stroke3.3in3.5in▲ 990+0.2 in · +6%

Transmission

SpecAGCO ST40John Deere 990Difference
TypeMultiple options available (synchronized shuttle, power shuttle, hydrostatic)Partially synchronized—

Dimensions & Weight

SpecAGCO ST40John Deere 990Difference
Length122in123in▲ 990+1 in · <1%
Width60.2in83.9in▲ 990+23.7 in · +39%
Height94.4inNot recorded—
Operating Weight3,323lb2,594lb▲ ST40+729 lb · +28%

Hydraulics

SpecAGCO ST40John Deere 990Difference
System TypeOpen CenterOpen centerSame
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAGCO ST40John Deere 990Difference
TypeRear PTO: 540, Mid PTO: SAE 15 1.0Live—
Speed 1540rpm540rpmSame

Tires

SpecAGCO ST40John Deere 990Difference
Rear Tire Size13.6-24Not recorded—

Hitch & Towing

SpecAGCO ST40John Deere 990Difference
Hitch TypeRearThree-Point Hitch—
Hitch CategoryIISame
Hitch PositionRearNot recorded—
Hitch CapacityNot recorded1,572lb—

Chassis & Drive

SpecAGCO ST40John Deere 990Difference
Chassis Type4WDNot recorded—
Drive Type4WDNot recorded—
Steering TypePowerPowerSame
Brake TypeNot recordedWet disc—

Electrical

SpecAGCO ST40John Deere 990Difference
Starter TypeElectricElectricSame

Capacities

SpecAGCO ST40John Deere 990Difference
Coolant1.7gal1.5gal▲ ST40+0.2 gal · +13%

Operator Station

SpecAGCO ST40John Deere 990Difference
TypeROPSOpen with ROPS—

Category context

Both models against the field

Engine Power

median 26.9 hp
A · 77th percentile (40.1 hp)B · 77th percentile (40.4 hp)

Engine Displacement

median 91.4 ci
A · 50th percentile (91.4 ci)B · 68th percentile (122 ci)

Cylinders

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

Forward Gears

median 9
A · 89th percentile (16)B · 50th percentile (9)

Operating Weight

median 2,700 lb
A · 63rd percentile (3,323 lb)B · 47th percentile (2,594 lb)
A · ST40B · 990Median Sub-Compact Tractor
Full spec pageAGCO ST40Full spec pageJohn Deere 990