Overview
The Upton HT-14/350 is a 350 hp two-wheel drive farm tractor powered by an 855 ci Cummins 6-cylinder diesel engine. Produced in Corowa, Australia, this machine features a 14-speed Spicer transmission and a standard air-conditioned cab. It is characterized by an operating weight of 51,000 pounds and a 350-gallon fuel capacity.
Ideal Applications
Chassis and Load Specifications:
The tractor is built on a 154-inch wheelbase with a 65,000-pound capacity rear axle that carries over 80 percent of its 51,000-pound operating weight.
Engine and Fuel Systems:
The 14.0L Cummins aftercooled turbocharged engine is rated at 2100 RPM and is supported by a 350-gallon fuel tank and a 56-gallon hydraulic reservoir.
Hydraulic and Transmission Layout:
The hydraulic system provides a total flow of 48.08 gpm at 2031 psi, while the Spicer transmission provides 14 forward and 4 reverse gears.
Production
| Description | Standard-tread tractor / Built in Corowa, New South Wales, Australia |
|---|---|
| Drive type | 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 |
| Original price | $70,000 (1978) |
| Total built | 1 |
Engine
| Engine type | Cummins 14.0L 6-cyl diesel |
|---|---|
| Bore/Stroke | 5.50x6.00 inches (140 x 152 mm) |
| Compression | 14:1 |
| Description | Cummins NTC-350 / aftercooled turbocharged diesel / 6-cylinder / liquid-cooled |
| Displacement | 855 ci (14.0 L) |
| Power | 350 hp (261.0 kW) |
| Rated RPM | 2100 |
Transmission
| Gears | 14 forward and 4 reverse |
|---|---|
| Transmission | Spicer |
| Transmission type | 14-speed |
Mechanical
| Cab | Cab standard with air-conditioning and stereo. |
|---|---|
| Description | Westinghouse drums brakes |
| Drive type | Two-wheel drive |
Capacity
| Fuel | 350 gal (1324.8 L) |
|---|---|
| Hydraulic system | 56 gal (212.0 L) |
Hydraulics
| Capacity | 56 gal (212.0 L) |
|---|---|
| Pressure | 2031 psi (140.0 bar) |
| Total flow | 48.08 gpm (182.0 lpm) |
Dimensions & Tires
| Ground clearance | 19 inches (48 cm) |
|---|---|
| Height | 137 inches (347 cm) |
| Length | 258 inches (655 cm) |
| Operating weight | 51,000 lbs (23133 kg) |
| Weight | 40,480 lbs (18361 kg) |
| Wheelbase | 154 inches (391 cm) |
| Width | 141 inches (358 cm) |
| Front tire | 18.4x26 |
| Rear tire | 33.5x33 |
| Weight | 40480 to 51000 pounds |
| Wheelbase | 154 inches (391 cm) |
| Ag front | 18.4x26 |
| Ag rear | 33.5x33 |