CaseIH STX425QT Quadtrac
The CaseIH STX425QT Quadtrac is a tractor produced by Caseih. It is equipped with a 915 ci 15.0 L engine. The rated power output is 425 hp 316.9 kW. Transmission: 16 forward and 2 reverse. Drive type: articulated crawler.
Engine Power
425 hp
316.9 kW
Drive & Traction
articulated crawler
Fuel & Capacities
300 gal
1135.5 L
Transmission
16 forward and 2 reverse
Caseih STX425QT Quadtrac Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 2002 - 2006
Steiger STX SeriesArticulated Crawler tractor |
|---|---|
2002 - 2006 | |
Steiger STX Series | |
Articulated Crawler tractor | |
Production | |
|---|---|
Manufacturer | CaseIH |
Articulated Crawler tractor | |
Built in Fargo, North Dakota, USA | |
Variants | |
|---|---|
STX425 | wheeled tractor |
STX425QT | crawler tractor |
CaseIH STX425QT Engine | |
|---|---|
Cummins 15.0L 6-cyl diesel | |
Fuel tank | 300 gal
1135.5 L |
Engine details ...  | |
CaseIH STX425QT Transmission | |
|---|---|
16-speed full power shift | |
Transmission details ...  |
CaseIH STX425QT Power | |
|---|---|
Engine | 425 hp
316.9 kW |
PTO (claimed) | 370 hp
275.9 kW |
Mechanical | |
|---|---|
Drive | articulated crawler |
Final drives | inboard planetary |
Steering | hydrostatic power |
Integrated hydraulic wet disc brakes | |
Surveyor Cab standard. | |
Hydraulics | |
|---|---|
Type | pressure flow compensated (PFC) |
Rear valves | 4 to 7 |
Pump flow | 40 gpm
151.4 lpm |
55 gpmOptOptional
208.2 lpm | |
Tractor hitch | |
|---|---|
Rear Type | IVN/III |
Rear lift (at 24"/610mm) | 19500 lbs
8845 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent OptOptional |
Rear PTO Type | 1000 (1.75) |
Dimensions & Tracks | |
|---|---|
Wheelbase | 154 inches
391 cm |
30-inch tracks | |
Full dimensions and tracks ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Battery volts | 12 |
References | |
|---|---|
 | |
STX Series Steiger Tractors published in 2002, by CaseIH* | |
STX Series Steiger Tractors published in 2002, by CaseIH* | |
*Publication contains known errors. |
Engine
Engine Detail — 915 ci / 15.0 L Diesel
Manufacturer | Cummins QSX15 |
Configuration | turbocharged aftercooled diesel, 6-cylinder, liquid-cooled |
Displacement | 915 ci
15.0 L |
Bore/Stroke | 5.39x6.65 inches
137 x 169 mm |
Power | 425 hp
316.9 kW |
Air cleaner | dual paper elements |
Rated RPM | 2000 |
Torque | 1594 lb-ft
2161.5 Nm |
Torque RPM | 1400 |
Starter volts | 12 |
CaseIH STX425QT Engine | |
|---|---|
 |
Transmission
Transmission — 16 forward and 2 reverse full power shift
Type | full power shift |
Gears | 16 forward and 2 reverse |
Clutch | electro-hydraulic wet disc |
Dimensions
CaseIH STX425QT Tracks | |
|---|---|
Width | 30 inches
76 cm |
Width | 36 inches
91 cm |
Dimensions | |
|---|---|
Wheelbase | 154 inches
391 cm |
Width | 44 inches (frame)
111 cm |
Front axle | 4.5 inch diameter
114 mm |
Rear axle | 4.5 inch diameter
114 mm |
CaseIH STX425QT Weight | |
|---|---|
Max capacity | 53264 lbs
24160 kg |
Max Drawbar | 5300 lbs
2404 kg |
11000 lbs (optional)
4989 kg | |
Photos
CaseIH STX425QT Quadtrac tractor photo
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