CaseIH STX450
The CaseIH STX450 is a powerful tractor built for big jobs on the farm. It has a strong Cummins engine with 450 horsepower, which is a lot of power for tough work. The engine has 6 cylinders and uses diesel fuel. It's cooled by liquid to keep it running smoothly even when working hard. This tractor is big and heavy, weighing 39,325 pounds. It's about 26 feet long and 12.5 feet tall. The STX450 has a full power shift transmission with 16 forward gears and 2 reverse gears, giving the driver lots of control. It uses hydrostatic power steering, making it easier to turn such a large machine. The tractor has a rear hitch for attaching tools and a rear PTO (power take-off) for running equipment. Its hydraulic system is pressure flow compensated, which helps it handle heavy loads well.

Quick specs
- Category
- Four-Wheel Drive
- Engine Power Output
- 450hp
- Operating Weight
- 39,325 lb
- Transmission
- Full Power Shift
At a glance
How the STX450 compares
vs. Four-Wheel Drive medianDistribution
Engine Power (hp)
Across all Four-Wheel Drive tractors
This model
The STX450 ranks at the 64th percentile for engine power among recorded four-wheel drive tractors.
Overview
About the CaseIH STX450
The CaseIH STX450 is a powerful tractor built for big jobs on the farm. It has a strong Cummins engine with 450 horsepower, which is a lot of power for tough work. The engine has 6 cylinders and uses diesel fuel. It's cooled by liquid to keep it running smoothly even when working hard. This tractor is big and heavy, weighing 39,325 pounds. It's about 26 feet long and 12.5 feet tall. The STX450 has a full power shift transmission with 16 forward gears and 2 reverse gears, giving the driver lots of control. It uses hydrostatic power steering, making it easier to turn such a large machine. The tractor has a rear hitch for attaching tools and a rear PTO (power take-off) for running equipment. Its hydraulic system is pressure flow compensated, which helps it handle heavy loads well.
Full specifications
Every recorded spec
General
| Manufacturer | CaseIH |
|---|---|
| Model | STX450 |
| Category | Four-Wheel Drive tractor |
| Operating weight | 39,325lb |
Engine
| Make | Cummins |
|---|---|
| Model | QSX 15 |
| Power | 450hp |
| Cylinders | 6 |
| Displacement | 912ci |
| Bore | 5.39in |
| Stroke | 6.65in |
Transmission
| Type | Full Power Shift |
|---|---|
| Forward gears | 16 |
| Reverse gears | 2 |
Chassis & drive
| Steering | Hydrostatic Power |
|---|
Hydraulics
| Type | Pressure Flow Compensated (PFC) |
|---|
Power take-off
| Rear PTO | 1000 (1.75) |
|---|
Dimensions
| Length | 317.5in |
|---|---|
| Width | 44in |
| Height | 152.1in |
| Operating weight | 39,325lb |
Head to head
STX450 vs. Four-Wheel Drive median
How the CaseIH STX450 compares to other Four-Wheel Drive tractors
| Spec | This model | Four-Wheel Drive median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 450 hp | 375 hp | +20% | 64th |
| Engine Displacement | 912 ci | 826 ci | +10% | 78th |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 16 | 16 | at median | 50th |
| Operating Weight | 39,325 lb | 37,428 lb | +5% | 55th |
| Length | 318 in | 275 in | +15% | 91st |
| Width | 44 in | 116 in | -62% | 12th |
| Height | 152 in | 143 in | +7% | 87th |
Medians and percentiles are computed from the four-wheel drive tractors in our database with a recorded value for each spec (sample sizes 71–162 models).
Compare to tractors with similar specs
Commonly compared CaseIH tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| CaseIH Steiger 450 | 450 hp | 36,048 lb | — | Compare → |
| CaseIH Steiger 470 | 470 hp | 40,159 lb | — | Compare → |
| CaseIH Steiger 470 Quadtrac | 470 hp | 46,500 lb | — | Compare → |
| CaseIH STX425 | 425 hp | — | — | Compare → |
| CaseIH Steiger 420 | 420 hp | 40,159 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Big Bud 450 | 450 hp | 40,000 lb | — | Compare → |
| Big Bud 450/20 | 450 hp | 41,500 lb | — | Compare → |
| Big Bud 450/50 | 450 hp | 41,500 lb | — | Compare → |
| Big Bud KT400 | 450 hp | 40,000 lb | — | Compare → |
| Big Bud KT450 | 450 hp | 43,000 lb | — | Compare → |
Explore
CaseIH siblings
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Gallery
CaseIH STX450 photos




FAQ
Common questions
How much horsepower does the CaseIH STX450 have?
The CaseIH STX450 produces 450 hp from its 6-cylinder engine. Engine displacement is 912 ci.
How much does the CaseIH STX450 weigh?
The CaseIH STX450 weighs about 39,325 lb in operating condition.
What transmission is in the CaseIH STX450?
Transmission on the CaseIH STX450 is Full Power Shift, with 16 forward speeds.
What hydraulics does the CaseIH STX450 have?
The CaseIH STX450 uses a Pressure Flow Compensated (PFC) hydraulic system.
What maintenance does the CaseIH STX450 require?
Like any tractor, the CaseIH STX450 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.

