Case IH CaseIH STX450 4WD
Series: Other models
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The Case IH CaseIH STX450 is a tractor from the Case IH 4WD Tractor series. The six-cylinder engine, displacing 14.9 litres, produces 456 hp (335.6 kW). Rated speed is 2,000 rpm.
Unladen, it tips the scales at 17,838 kg.
Within the range, rated power spans from 127 to 456 hp; with 456 hp, the CaseIH STX450 sits at the top. Below it ranks the Magnum 340 with 345 hp.
Technical data
Engine
| Engine model | 14.9L 6-cyl dieselcorrect |
|---|---|
| Power | 456.2 hp (335.6 kW)correct |
| Rated speed | 2,000 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 14,900.8 cm³correct |
Dimensions and weights
| Unladen weight | 17,837.5 kgcorrect |
|---|
Drivetrain and chassis
| Forward gears | 16correct |
|---|---|
| Reverse gears | 2correct |
| System voltage | 12 Vcorrect |
Working data
| Pump flow | 151.4 l/mincorrect |
|---|---|
| Fuel tank capacity | 1,135.6 lcorrect |
Where this model stands
Power-to-weight ratio: 18.8 kW/t (336 kW / 17.8 t)
Power class: Heavy (> 180 hp)
Stronger than 99% of the tractors in the register — out of 15,240 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Case IH CaseIH STX450 have?
The Case IH CaseIH STX450 delivers 456 hp.
How much does the Case IH CaseIH STX450 weigh?
The unladen weight is 17,838 kg.
What engine does the Case IH CaseIH STX450 have?
6 cylinders, 14,901 cm³ displacement.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 12 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: [1]
Tractor in 3D section
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