Head to head · Articulated

CaseIH STX425QT Quadtrac vs John Deere 9R 390

John Deere 9R 390 Tractor
John DeereModel B

John Deere 9R 390

Four-Wheel Drive

power
371 hp
displacement
826 ci
Cylinders
6
Forward gears
18
Full 9R 390 specs
CaseIHCaseIH STX425QT Quadtrac
vs
John DeereJohn Deere 9R 390

How they compare

Headline specs vs. the whole Articulated

n = 57–62

Engine Power

▲ STX425QT Quadtrac higher · +54 hp (+15%)
STX425QT Quadtrac425 hp
9R 390371 hp
Median Articulated Tractor450 hp

STX425QT Quadtrac is in the 38th percentile; 9R 390 is in the 25th · 62 models

Engine Displacement

▲ STX425QT Quadtrac higher · +89 ci (+11%)
STX425QT Quadtrac915 ci
9R 390826 ci
Median Articulated Tractor827 ci

STX425QT Quadtrac is in the 78th percentile; 9R 390 is in the 47th · 61 models

Cylinders

= Effectively tied
STX425QT Quadtrac6
9R 3906
Median Articulated Tractor6

STX425QT Quadtrac is in the 50th percentile; 9R 390 is in the 50th · 61 models

Forward Gears

▲ 9R 390 higher · +2 (+13%)
STX425QT Quadtrac16
9R 39018
Median Articulated Tractor16

STX425QT Quadtrac is in the 50th percentile; 9R 390 is in the 97th · 59 models

STX425QT Quadtrac (A)9R 390 (B)Median Articulated Tractor

Full comparison

Every spec, side by side

General Information

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
ManufacturerCaseIHJohn Deere—
ModelSTX425QT Quadtrac9R 390—
CategoryArticulatedFour-Wheel Drive—

Engine

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
ManufacturerCumminsJohn Deere—
ModelQSX15JD14—
Power Output425hp371hp▲ STX425QT Quadtrac+54 hp · +15%
Rated RPM2,000RPM2,100RPM▲ 9R 390+100 RPM · +5%
Cylinders66Same
Displacement915ci826ci▲ STX425QT Quadtrac+89 ci · +11%
Bore5.4in5.2in▲ STX425QT Quadtrac+0.2 in · +4%
Stroke6.7in6.5in▲ STX425QT Quadtrac+0.2 in · +3%

Transmission

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
TypeFull power shiftFull power shiftSame

Dimensions & Weight

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
LengthNot recorded313in—
Width44inNot recorded—
HeightNot recorded147in—
Operating Weight53,264lb46,800lb▲ STX425QT Quadtrac+6,464 lb · +14%

Hydraulics

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
System TypePressure flow compensated (PFC)Closed center pressure/flow compensated—
Steering TypeHydrostatic powerNot recorded—

Hitch & Towing

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
Hitch CategoryIVN/IIICategory 4N—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
Chassis Type4x4 (Quadtrac)Not recorded—
Drive Type4WDNot recorded—
Steering TypeHydrostatic powerNot recorded—

Electrical

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
Starter TypeElectric, 12 voltsElectric—

Capacities

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
CoolantNot recorded14.9gal—

Operator Station

SpecCaseIH STX425QT QuadtracJohn Deere 9R 390Difference
TypeNot recordedCab—

Category context

Both models against the field

Engine Power

median 450 hp
A · 38th percentile (425 hp)B · 25th percentile (371 hp)

Engine Displacement

median 827 ci
A · 78th percentile (915 ci)B · 47th percentile (826 ci)

Cylinders

median 6
A · 50th percentile (6)B · 50th percentile (6)

Forward Gears

median 16
A · 50th percentile (16)B · 97th percentile (18)

Operating Weight

median 51,335 lb
A · 57th percentile (53,264 lb)B · 38th percentile (46,800 lb)
A · STX425QT QuadtracB · 9R 390Median Articulated Tractor
Full spec pageCaseIH STX425QT QuadtracFull spec pageJohn Deere 9R 390