Challenger 65

The Challenger 65 is a tractor produced by Challenger. It is equipped with a 638 ci 10.5 L engine. The listed engine power is Diesel (net): 256 hp / 190.9 kW; Diesel (gross): 270 hp / 201.3 kW. Transmission: 10 forward and 2 reverse. Drive type: crawler. Operating weight: 33200 lbs 15059 kg.

Overview

	1987 - 1990 Agricultural Crawler tractor

Production
Manufacturer	Challenger (a part of Caterpillar)
Agricultural Crawler tractor

Challenger 65 Engine
Caterpillar 10.5L 6-cyl diesel
Engine details ...

Challenger 65 Transmission
10-speed full power shift
Transmission details ...

Challenger 65 Power
Engine (gross)	270 hp 201.3 kW
Engine (net)	256 hp 190.9 kW
Drawbar (claimed)	202 hp 150.6 kW
PTO (claimed)	235 hp 175.2 kW
Drawbar (tested)	213.73 hp 159.4 kW
PTO (tested)	237.91 hp 177.4 kW
Performance test details ...

Mechanical
Drive	crawler
Steering	hydrostatic differential steering
Hydraulic caliper disc brakes
Cab standard with air-conditioning.

Capacity
Fuel	186 gal 704.0 L
Hydraulic system	16 gal 60.6 L

Hydraulics
Type	closed center
Capacity	16 gal 60.6 L
Pressure	2500 psi 172.4 bar
Valves	4
Pump flow	27.2 gpm 103.0 lpm

Tractor hitch
Rear Type	III
Rear lift	12300 lbs 5579 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000

Dimensions & Tracks
Wheelbase	106 inches 269 cm
Weight	33200 lbs 15059 kg
24.5-inch tracks
Full dimensions and tracks ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	105
Batteries	2
Battery volts	12

References
Make Farming More Efficient published in 1990, by Caterpillar
Challenger 65 published in 1987, by Caterpillar
Speaking From Experience... published in 1989, by Caterpillar

Engine

Engine Detail — 638 ci / 10.5 L Diesel

Manufacturer	Caterpillar 3306 DITA
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled
Displacement	638 ci 10.5 L
Bore/Stroke	4.75x6.00 inches 121 x 152 mm
Power (net)	256 hp 190.9 kW
Power (gross)	270 hp 201.3 kW
Fuel system	direct injection
Air cleaner	dual paper elements with aspirator
Compression	15:1
Rated RPM	2100
Starter volts	12
Oil capacity	28 qts 26.5 L
Coolant capacity	44 qts 41.6 L

Transmission

Transmission — 10 forward and 2 reverse full power shift

Type	full power shift
Gears	10 forward and 2 reverse
Oil capacity	72 qts 68.1 L

Dimensions

Challenger 65 Tracks
Width	24.5 inches 62 cm
Length on ground	106 inches 269 cm
Area on ground	5193 in² 3.4 m²
Ground pressure	5.7 psi 0.4 bar

Dimensions
Wheelbase	106 inches 269 cm
Length	225 inches 571 cm
Width	113 inches 287 cm
Height (cab)	127 inches 322 cm
Height (exhaust)	135 inches 342 cm
Operating weight	33200 lbs 15059 kg
Ground clearance	14.9 inches 37 cm
Gauge	84.6 inches 214 cm

Tests

OCED Tractor Test 1613
Diesel 10-speed crawler September 1 - 30, 1988 Link: OCED Tractor Test 1613 file
PTO performance
Max power	237.91 hp 177.4 kW
Fuel use	14.0 gal/hour 53.0 l/hour
Power at rated engine speed	232.29 hp 173.2 kW
Fuel use	14.4 gal/hour 54.5 l/hour
Power at rated PTO speed	236.30 hp 176.2 kW
Fuel use	14.4 gal/hour 54.5 l/hour
Drawbar performance
Max power	213.73 hp 159.4 kW
Fuel use	14.0 gal/hour 53.0 l/hour
Gear 3 used for power test.
Max pull	32,684 lbs 14825 kg
Gear 1 used for pull test.

Photos

Challenger 65, left side.

Challenger 65, rear view.