Challenger 55

Production: 1996 - 1998  

Production
Manufacturer:	Challenger (a part of Caterpillar)
Type:	Agricultural Crawler tractor
Original price:	$133,000 (1998 )

Challenger 55 Power
Drawbar (claimed):	191 hp 142.4 kW
PTO (claimed):	225 hp 167.8 kW

Mechanical
Chassis:	crawler
Steering:	differential power
Brakes:	wet disc
Cab:	Cab standard with air-conditioning.
Transmissions:	16-speed full power shift
32-speed creeper

Hydraulics
Type:	variable-displacement load-sensing pressure-compensated
Pressure:	2750 psi 189.6 bar
Valves:	3 or 4
Pump flow:	31.2 gpm 118.1 lpm
55 gpm 208.2 lpm *Optional.

Tractor hitch
Rear Type:	III/II
Control:	draft control
Rear lift:	12500 lbs 5670 kg
15000 lbs 6804 kg *Optional.

Power Take-off (PTO)
Rear PTO:	independent
Clutch:	electro-hydraulic wet disc
Rear RPM:	1000 (1.75)
Engine RPM:	1000@1900

Electrical
Ground:	negative
Charging system:	alternator
Battery volts:	12

Engine Detail
Caterpillar 3126
turbocharged diesel
6-cylinder
liquid-cooled
Displacement:	442 ci 7.2 L
Bore/Stroke:	4.33x5.00 inches 110 x 127 mm
Rated RPM:	2100
Starter volts:	12
Coolant capacity:	34.4 qts 32.6 L

Dimensions
Wheelbase:	86 inches 218 cm
Length:	211 inches 535 cm
Width:	91 inches 231 cm
Height (cab):	120 inches 304 cm
Height (exhaust):	125 inches 317 cm
Weight:	26000 lbs 11793 kg
Gauge:	60/68/72/76/80/88/90 inches 152/172/182/193/203/223/228 cm