CaseIH STX450 Four-wheel Drive (4WD) tractor Specs & Features

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CaseIH STX450 Four-wheel Drive (4WD) tractor Technical Specifications

CaseIH STX450 is a Row-Crop tractor that was produced by the John Deere between 2002 – 2005.

Below you will find detailed technical specifications for CaseIH STX450 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

CaseIH STX450 Production

Manufacturer:
Manufacturer:	CaseIH
Type:	Four-wheel Drive (4WD) tractor
Factory:	Fargo, North Dakota, USA
The New Holland TJ450 is the same as the CaseIH STX450.

CaseIH STX450 Power

Engine:
Engine:	450 hp 335.6 kW
Drawbar (claimed):	360 hp 268.5 kW
PTO (claimed):	395 hp 294.6 kW
Drawbar (tested):	371.35 hp 276.9 kW
PTO (tested):	454.23 hp 338.7 kW

CaseIH STX450 Electrical

Ground:	negative
Charging system:	alternator
Battery volts:	12

CaseIH STX450 Mechanical

Chassis:

4×4 articulated 4WD

Final drives:

compound planetary

Steering:

hydrostatic power

Brakes:

integrated hydraulic wet disc

Cab:

Surveyor Cab standard.

Transmission:

16-speed full power shift

Hydraulics

Type:	pressure flow compensated (PFC)
Rear valves:	4 to 7
Pump flow:	40 gpm 151.4 lpm
	55 gpm 208.2 lpm *Optional

Tracktor Hitch

Rear Type:	IVN/III
Rear lift (at 24″/610mm):	19500 lbs 8845 kg

Power Take-off (PTO)

Rear PTO:	independent*Optional
Rear RPM:	1000 (1.75)

CaseIH STX450 Engine detail

Engine Detail
Cummins QSX15
turbocharged aftercooled diesel
6-cylinder
liquid-cooled
Displacement:	912 ci 14.9 L
Bore/Stroke:	5.39×6.65 inches 137 x 169 mm
Power:	450 hp 335.6 kW
Air cleaner:	dual paper elements
Compression:	16.5:1
Rated RPM:	2000
Torque:	1669 lb-ft 2263.2 Nm
Torque RPM:	1400
Starter volts:	12

CaseIH STX450 Transmission overview

Engine Oil

Type:	full power shift
Gears:	16 forward and 2 reverse
Clutch:	electro-hydraulic wet disc

CaseIH STX450 Dimensions

Wheelbase:	154 inches 391 cm
Width:	44 inches 111 cm (frame)
Front axle:	4.5 inch diameter 114 mm
Rear axle:	4.5 inch diameter 114 mm

CaseIH STX450QT Weight
Operating:	51335 lbs 23285 kg
Max capacity:	53264 lbs 24160 kg
Max Drawbar:	5300 lbs 2404 kg
	11000 lbs 4989 kg (optional)

CaseIH STX450 Tests

OCED Tractor Test 1785

OCED Tractor Test 1785
Diesel 16-speed Crawler October 4 – 19, 2000 Link: OCED Tractor Test 1785 file
PTO performance
Max power:	450.29 hp 335.8 kW
Fuel use:	22.3 gal/hour 84.4 l/hour
Power at rated engine speed:	399.14 hp 297.6 kW
Fuel use:	22.0 gal/hour 83.3 l/hour
Drawbar performance
Max power:	345.68 hp 257.8 kW
Fuel use:	22.1 gal/hour 83.6 l/hour
Gear 4 used for power test.
Max pull:	38412 lbs 17423 kg
Gear 3 used for pull test.

FAQ

Is CaseIH STX450 a good tractor?

The CaseIH STX450 is one of the great tractors in the CaseIH stable, and it has earned CaseIH a fantastic reputation.

How much oil does a CaseIH STX450 take?

Check out the CaseIH STX450 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year CaseIH made the STX425

The CaseIH STX450 was an agricultural tractor model made from 2002 – 2005