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Challenger 55

Challenger 55 tractor
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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.
Challenger 55tractorcrawler tractorCaterpillar engineagricultural tractortractor specifications
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

Type:creeper
Gears:32 forward and 18 reverse

Full power shift

Type:full power shift
Gears:16 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)

Related Models

Challenger 45

Model:45