Challenger
Challenger 55
The Challenger 55 is an agricultural crawler tractor produced from 1996 to 1998 by Challenger, a part of Caterpillar. It features a Caterpillar 7.2L 6-cylinder turbocharged diesel engine, delivering 191 hp drawbar and 225 hp PTO power. The tractor has a 16-speed full power shift transmission with an optional 32-speed creeper. It rides on crawler tracks available in multiple widths and includes advanced hydraulics, a rear hitch with draft control, and an independent rear PTO. The cab comes standard with air-conditioning, and the tractor uses wet disc brakes and differential power steering.
Power250 hp[P]
Founded1996 - 1998
Model55
Technical Specifications
Detailed specifications and technical data for Challenger 55
Power
| PTO (claimed) | 225 hp (167.8 kW) |
|---|---|
| Drawbar (claimed) | 191 hp (142.4 kW) |
Engine
| Type | turbocharged diesel |
|---|---|
| Model | Caterpillar 3126 |
| Cooling | liquid-cooled |
| Cylinders | 6-cylinder |
| Fuel tank | 125 gal (473.1 L) |
| Rated RPM | 2100 |
| Bore/Stroke | 4.33x5.00 inches (110 x 127 mm) |
| Displacement | 442 ci (7.2 L) |
| Starter volts | 12 |
| Coolant capacity | 34.4 qts (32.6 L) |
Tracks
| Widths | 16 inches (40 cm), 18 inches (45 cm), 20 inches (50 cm), 25 inches (63 cm), 32 inches (81 cm) |
|---|
Dimensions
| Gauge | 60/68/72/76/80/88/90 inches (152/172/182/193/203/223/228 cm) |
|---|---|
| Width | 91 inches (231 cm) |
| Length | 211 inches (535 cm) |
| Weight | 26000 lbs (11793 kg) |
| Wheelbase | 86 inches (218 cm) |
| Height (cab) | 120 inches (304 cm) |
| Height (exhaust) | 125 inches (317 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging system | alternator |
Hydraulics
| Type | variable-displacement load-sensing pressure-compensated |
|---|---|
| Valves | 3 or 4 |
| Pressure | 2750 psi (189.6 bar) |
| Pump flow | 31.2 gpm (118.1 lpm), 55 gpm* (208.2 lpm) *Optional |
Mechanical
| Cab | standard with air-conditioning |
|---|---|
| Drive | crawler |
| Brakes | Wet disc brakes |
| Steering | differential power |
Production
| Type | Agricultural Crawler tractor |
|---|---|
| Original price | $133,000 in 1998 |
| Years produced | 1996 - 1998 |
Transmission
| Creeper | Typecreeper Gears32 forward and 18 reverse |
|---|---|
| Full power shift | Typefull power shift Gears16 forward and 9 reverse |
| Transmission options | 16-speed full power shift, 32-speed creeper |
Tractor hitch
| Control | draft control |
|---|---|
| Rear Type | III/II |
| Rear lift | 12500 lbs (5670 kg), 15000 lbs* (6804 kg) *Optional |
Power Take-off (PTO)
| Clutch | electro-hydraulic wet disc |
|---|---|
| Rear PTO | independent |
| Engine RPM | 1000@1900 |
| Rear PTO Type | 1000 (1.75) |