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Tractor · 2001Unverified

CaseIH STX440QT Quadtrac

Name: CaseIH STX440QT Quadtrac
Brand: CaseIH

CaseIH STX440QT Quadtrac — Steiger STX Series · 399 hp. Reference specifications; pending source verification.

The CaseIH STX440QT Quadtrac is a tractor with a rated power of 399 hp, positioning it at the powerful end of its class. Manufactured in 2001, this model features a 6-cylinder turbocharged diesel liquid-cooled engine, paired with a tracked undercarriage and a hydrostatic transmission. The tractor's listed operating weight is 23285 kg, making it suitable for operations covering 1,500+ acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

399 hp

Max power

335.8 kW

Weight

23285 kg

Catalogue coverage

Variants represented

Richest spec table

58 rows

Recorded power

399 hp

Recorded weight

23285 kg

Transmissions

16-speed full power shift

Production years

2001-2001

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerCaseIHReference

Articulated Crawler tractorReference

Built in Fargo, North Dakota, USAReference

Drivearticulated crawlerReference

Final drivesinboard planetaryReference

Steeringhydrostatic powerReference

Integrated hydraulic wet disc brakesReference

Surveyor Cab standard.Reference

Engine

Cummins 14.9L 6-cyl dieselReference

Fuel tank1135.5 LReference

Engine328.1 kWReference

Drawbar (tested)257.8 kWReference

Cummins QSX15Reference

turbocharged aftercooled dieselReference

6-cylinderReference

liquid-cooledReference

Displacement14.9 LReference

Bore/Stroke137 x 169 mmReference

Power328.1 kWReference

Air cleanerdual paper elementsReference

Compression16.5:1Reference

Rated RPM2000Reference

Torque2237.4 NmReference

Torque RPM1400Reference

Starter volts12Reference

Max power335.8 kWReference

Power at rated engine speed297.6 kWReference

Max power257.8 kWReference

Transmission

16-speed full power shiftReference

Typefull power shiftReference

Gears16 forward and 2 reverseReference

Clutchelectro-hydraulic wet discReference

PTO & Hydraulics

PTO (tested)335.8 kWReference

Typeclosed center load sensingReference

Rear valves4 to 7Reference

Pump flow151.4 lpmReference

Pump flow208.2 lpmReference

Rear TypeIVNReference

Rear lift (at 24"/610mm)8845 kgReference

Rear PTOindependentReference

Rear PTO Type1000Reference

Dimensions

Weight23285 kgReference

TracksReference

Width111 cmReference

Operating weight23285 kgReference

Max weight24160 kgReference

Rear axle114 mmReference

Electrical

GroundnegativeReference

Charging systemalternatorReference

Batteries2Reference

Battery volts12Reference

Test results

Diesel 16-speed CrawlerOctober 4 - 19, 2000Link: OCED Tractor Test 1785 fileReference

PTO performanceReference

Fuel use84.4 l/hourReference

Fuel use83.3 l/hourReference

Drawbar performanceReference

Fuel use83.6 l/hourReference

Gear 4 used for power test.Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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