CaseIH STX425QT Quadtrac

Last Updated: September 2024

Overview

The CaseIH STX425QT Quadtrac is a powerful 4WD tractor built for heavy-duty farming tasks. It features a unique Quadtrac system, which uses four tracks instead of wheels for better traction and less soil compaction. The tractor is equipped with a 16-speed forward and 2-speed reverse full power shift transmission, making it easy to change gears for different jobs.

Under the hood, the STX425QT boasts a Cummins QSX15 engine. This 6-cylinder diesel engine is turbocharged and aftercooled, providing an impressive 425 horsepower. It has a large displacement of 915 cubic inches, which is above average for tractors in its class. The engine is liquid-cooled to keep it running smoothly even during long workdays. With its 44-inch wide frame and heavy operating weight of 53,264 pounds, this tractor is built to handle tough field conditions. It also features a rear hitch with category IVN/III compatibility and a pressure flow compensated hydraulic system for efficient implement control.
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Key Specifications

Power Output: 425 hp (316.9 kW)

Transmission: Full power shift

Drive Type: 4WD

Operating Weight: 53264 lb (24160 kg)

Fuel Type: Diesel

CaseIH STX425QT Quadtrac vs. Similar Tractors

Power Output

The Power Output for the CaseIH STX425QT Quadtrac is Excellent. It is greater than 98% of similar Utility tractors in our database.

Horsepower distribution of Utility tractors

(across 6.6K+ tractors in our database)

Operating Weight

The Operating Weight for the CaseIH STX425QT Quadtrac is Excellent. It is greater than 100% of similar Utility tractors in our database.

Operating weight distribution of Utility tractors

(across 6.4K+ tractors in our database)

Engine Displacement

The Engine Displacement for the CaseIH STX425QT Quadtrac is Excellent. It is greater than 99% of similar Utility tractors in our database.

Engine displacement distribution of Utility tractors

(across 1K+ tractors in our database)

Engine Rated RPM

The Engine Rated RPM for the CaseIH STX425QT Quadtrac is Below Average. It is greater than 11% of similar Utility tractors in our database.

Engine rated RPM distribution of Utility tractors

(across 1K+ tractors in our database)

Technical Specifications

Engine

Manufacturer
Cummins
Model
QSX15
Cooling Type
Liquid-cooled
Fuel Type
Diesel
Induction Type
Turbocharged aftercooled
Cylinders
6
Displacement
915 ci (15.0 L)
Bore
5.39 in (136.9 mm)
Stroke
6.65 in (168.9 mm)
Rated RPM
2000
Power Output
425 hp (316.9 kW)

Transmission

Type
Full power shift
Forward Gears
16
Reverse Gears
2

Drivetrain

Chassis
4x4 (Quadtrac)
Drive Type
4WD
Steering Type
Hydrostatic power