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Years in Production / 1978
Upton
HT-14/350
Explore the specifications, hardware, and original references for the Upton HT-14/350.

No photo
350hp
Source index power
2WD Only
Drive
1978
Production years
Upton
Manufacturer
HT-14/350 / 01
At a glance
Production
Standard-tread tractor
Built in Corowa, New South Wales, Australia
The Upton HT-14/350 is one of the largest two-wheel drive tractors ever built. The rear axle has a 65,000 pound capacity and the tractor is was originally equipped with 20-ply earthmover tires. Over 80% of its 25-ton weight was carried on the rear.
- Manufacturer
- Upton
- Total Built
- 1
- Original Price
- $70,000 (1978)
Capacity
- Fuel
- 350 gal1324.8 L
- Hydraulic System
- 56 gal212.0 L
Hydraulics
- Capacity
- 56 gal212.0 L
- Pressure
- 2031 psi140.0 bar
- Total Flow
- 48.08 gpm182.0 lpm
Mechanical
Two-wheel drive
Westinghouse drums brakes
Cab standard with air-conditioning and stereo.
HT-14/350 / 02
Under the hood
Engine Detail
Cummins NTC-350
aftercooled turbocharged diesel
6-cylinder
liquid-cooled
- Displacement
- 855 ci14.0 L
- Bore Stroke
- 5.50x6.00 inches140 x 152 mm
- Power
- 350 hp261.0 kW
- Compression Ratio
- 14:1
- Rated Rpm
- 2100
- Cylinders
- 6
- Cooling
- liquid-cooled
HT-14/350 / 03
Gears & controls
Transmission
- Transmission
- Spicer
- Gears
- 14 forward and 4 reverse
HT-14/350 / 04
Size. Stance. Footprint.
Dimensions And Tires
- Wheelbase
- 154 inches391 cm
- Weight
- 40480 to 51000 pounds
- Front Tire
- 18.4x26
- Rear Tire
- 33.5x33
Tires And Tracks
- Front Ag
- 18.4x26
- Rear Ag
- 33.5x33