Challenger 75 Specs ( 1991-1992 )
Overview
The Challenger 75 is a 325 hp agricultural crawler tractor manufactured between 1991 and 1992, featuring a 10.3L Caterpillar 6-cylinder turbocharged diesel engine. It is equipped with a 10-speed full power shift transmission and a hydrostatic differential steering system, operating on a 106-inch wheelbase with a total weight of 34,370 lbs.
Ideal Applications
Tested Performance Results:
According to OCED Tractor Test 1654, the tractor achieved a maximum PTO power of 301.85 hp and a maximum drawbar pull of 34,309 lbs using the 10-speed full power shift transmission.
Ground Engagement Configuration:
The crawler drive system utilizes 27.5-inch wide tracks providing 5,898 square inches of ground contact, resulting in a calculated ground pressure of 5.4 psi.
Hydraulic and Hitch Capacity:
This model features a closed hydraulic system with a 26 gpm pump flow and 4 valves, supporting rear hitch types Category III and IV.
Production
| Description | Agricultural Crawler tractor |
|---|---|
| Manufacturer | Challenger (a part of Caterpillar) |
Engine
| Engine type | Caterpillar 10.3L 6-cyl diesel |
|---|---|
| Fuel tank | 220 gal (832.7 L) |
| Bore/Stroke | 4.92x5.5 inches (125 x 140 mm) |
| Compression | 16:1 |
| Coolant capacity | 44 qts (41.6 L) |
| Description | Caterpillar / turbocharged diesel / 6-cylinder / liquid-cooled |
| Displacement | 629 ci (10.3 L) |
| Power | 325 hp (242.4 kW) |
| Rated RPM | 2100 |
| Starter volts | 12 |
| Drawbar (claimed) | 260 hp (193.9 kW) |
| Drawbar (tested) | 251.01 hp (187.2 kW) |
| PTO (claimed) | 281 hp (209.5 kW) |
| PTO (tested) | 301.85 hp (225.1 kW) |
Transmission
| Gears | 10 forward and 2 reverse |
|---|---|
| Transmission type | 10-speed full power shift |
| Type | full power shift |
Mechanical
| Cab | Cab standard |
|---|---|
| Description | Hydraulic caliper disc brakes |
| Drive | crawler |
| Steering | hydrostatic differential steering |
Hydraulics
| Pump flow | 26 gpm (98.4 lpm) |
|---|---|
| Type | closed |
| Valves | 4 |
Hitch
| Rear Type | III,IV |
|---|
PTO
| Rear PTO Type | 1000 |
|---|
Dimensions & Tires
| Operating weight | 34,370 lbs (15590 kg) |
|---|---|
| Wheelbase | 106 inches (269 cm) |
Challenger 75 Tracks
| Area on ground | 5898 in² (3.8 m²) |
|---|---|
| Ground pressure | 5.4 psi (0.4 bar) |
| Length on ground | 107 inches (271 cm) |
| Width | 27.5 inches (69 cm) / 24.5 inches (62 cm) / 35.5 inches (90 cm) |
Dimensions & Tracks
| Description | 27.5-inch tracks |
|---|---|
| Weight | 34,370 lbs (15590 kg) |
| Wheelbase | 106 inches (269 cm) |
OCED Tractor Test 1654
| Description | Diesel 10-speed crawlerOctober 4 - 11, 1991Link: OCED Tractor Test 1654 file / PTO performance / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
|---|---|
| Fuel use | 16.2 gal/hour (61.3 l/hour) / 15.6 gal/hour (59.0 l/hour) / 15.7 gal/hour (59.4 l/hour) / 15.7 gal/hour (59.4 l/hour) |
| Max power | 301.85 hp (225.1 kW) / 251.01 hp (187.2 kW) |
| Max pull | 34,309 lbs (15562 kg) |
| Power at rated engine speed | 281.36 hp (209.8 kW) |
| Power at rated PTO speed | 285.55 hp (212.9 kW) |
References
| Description | Challenger 75 published in 1991, by Caterpillar |
|---|