CaseIH STX380QT Quadtrac
The CaseIH STX380QT Quadtrac is a tractor produced by Caseih. It is equipped with a 786 ci 12.9 L engine. The listed engine power is Diesel (listed): 380 hp / 283.4 kW. Transmission: 16 forward and 2 reverse. Drive type: articulated crawler. Operating weight: 54000 lbs 24494 kg.
Engine Power
Diesel (listed): 380 hp / 283.4 kW
Drive & Traction
articulated crawler
Fuel & Capacities
300 gal
1135.5 L
Transmission
16 forward and 2 reverse
Operating Weight
54000 lbs
24494 kg
Overview
 | 2006
Quadtrac SeriesArticulated Crawler tractor
Quadtrac Series
Articulated Crawler tractor |
|---|
Production | |
|---|---|
Manufacturer | CaseIH |
Articulated Crawler tractor | |
Built in Fargo, North Dakota, USA | |
Variants | |
|---|---|
STX380 | wheeled tractor |
STX380QT | crawler |
CaseIH STX380QT Engine | |
|---|---|
Iveco 12.9L 6-cyl diesel | |
Fuel tank | 300 gal
1135.5 L |
Engine details ...  | |
CaseIH STX380QT Transmission | |
|---|---|
16-speed full power shift | |
Transmission details ...  |
CaseIH STX380QT Power | |
|---|---|
Engine | 380 hp
283.4 kW |
PTO (claimed) | 335 hp
249.8 kW |
Mechanical | |
|---|---|
Drive | articulated crawler |
Final drives | offset 3-planetary |
Steering | hydrostatic power |
Integrated hydraulic wet disc brakes | |
Surveyor cab standard with air-conditioning. Optional luxury cab with leather trim and seating. | |
Hydraulics | |
|---|---|
Type | pressure flow compensated |
Pump flow | 40 gpm
151.4 lpm |
55 gpm (High-Flow)
208.2 lpm | |
90 gpm (Twin-Flow)
340.7 lpm | |
Tractor hitch | |
|---|---|
Rear Type | IVN |
Rear lift (at 24"/610mm) | 19728 lbs
8948 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 |
Battery volts | 12 |
References | |
|---|---|
 | |
STX Steiger published in 2006, by CaseIH | |
STX Series Steiger Tractors published in 2006, by CaseIH |
Engine
Engine Detail — 786 ci / 12.9 L Diesel
Manufacturer | Iveco |
Configuration | turbocharged diesel, 6-cylinder 24-valve, liquid-cooled |
Displacement | 786 ci
12.9 L |
Bore/Stroke | 5.314x5.906 inches
135 x 150 mm |
Power | 380 hp
283.4 kW |
Rated RPM | 2000 |
Starter volts | 12 |
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 STX380QT Tracks | |
|---|---|
Width | 30 inches
76 cm |
Width | 36 inches
91 cm |
Dimensions | |
|---|---|
Wheelbase | 154 inches
391 cm |
Max weight | 54000 lbs
24494 kg |
Photos
CaseIH STX380QT Quadtrac tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Caseih STX380QT Quadtrac based on its 380 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁 | Commercial / Field Scale | High horsepower articulated/4WD field plowing. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙 | Commercial / Field Scale | Broad-acre grain tillage for high-drawbar tractors. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Caseih STX380QT Quadtrac.
Estimated Continuous Field Runtime: 15.2 hrs
Approximately 15.2 hours of continuous field operation at ~75% rated power on a full tank (300 gal / 1135.6 L).
Estimated 75% Load Fuel Burn~19.8 gal/hr (74.8 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Caseih STX380QT Quadtrac Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Caseih STX380QT Quadtrac.
Converted Equivalents:
Horsepower (HP)380 hp
Kilowatts (kW)283.4 kW
Metric Horsepower (PS / CV)385.3 PS
Direct Competitor Comparison
Compare CaseIH STX380QT Quadtrac against same-era industry alternatives in the same horsepower class.
Current Model
Caseih
CaseIH STX380QT Quadtrac
Engine Power:Diesel (listed): 380 hp / 283.4 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 4786
Engine Power:350
Production Years:1978 - 1981
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