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Years in Production / 2005–2008
Challenger
MT845B
Explore the specifications, hardware, and original references for the Challenger MT845B.
400hp
Source index power
Tracks
Drive
2005–2008
Production years
Challenger
Manufacturer
MT845B / 01
At a glance
Overview
2005 - 2008
MT800B Series
Agricultural Crawler tractor
Production
Agricultural Crawler tractor
Built in Jackson, Minnesota, USA
- Manufacturer
- Challenger (a part of AGCO)
Mechanical
Hydraulic wet disc brakes
Cab standard with air-conditioning.
- Drive
- crawler
Hydraulics
- Type
- closed center PFC
- Pressure
- 2900 psi200.0 bar
- Rear Valves
- 4 to 6
- Total Flow
- 43.5 gpm164.6 lpm
- Total Flow
- 59 gpmOptOptional223.3 lpm
Hitch
- Rear Type
- III/IVN
- Rear Lift
- 19500 lbs8845 kg
Pto
- Rear Pto
- independent
- Rear Type
- 1000 (1.75)
Electrical
- Ground
- negative
- Charging Amps
- 185
- Batteries
- 4
- Battery Cca
- 1000
- Battery Volts
- 12
MT845B / 02
Under the hood
Engine Detail
Caterpillar C15
turbocharged diesel
6-cylinder 24-valve
liquid-cooled inline
- Displacement
- 928 ci15.2 L
- Bore Stroke
- 5.402x6.752 inches137 x 172 mm
- Emissions
- Tier III
- Power Gross
- 400 hp298.3 kW
- Air Cleaner
- dual paper elements
- Compression Ratio
- 16.5:1
- Rated Rpm
- 2100
- Torque
- 1423 lb-ft1929.6 Nm
- Torque Rpm
- 1300
- Starter Volts
- 12
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Options
Caterpillar 15.2L 6-cyl diesel
- Fuel Tank
- 305 gal1154.4 L
- Fuel Tank
- 330 galOptOptional1249.0 L
MT845B / 03
Gears & controls
Transmission
- Transmission
- Cat Powershift
- Transmission Type
- full power shift
- Gears
- 16 forward and 4 reverse
- Clutch
- hydraulic wet disc
Challenger Mt845b Transmission
16-speed full power shift
MT845B / 04
Size. Stance. Footprint.
Dimensions
- Length
- 265.9 in675 cm
- Width
- 140.9 in357 cm
- Height
- 138.1 in350 cm
- Wheelbase
- 118 in299 cm
- Ground clearance
- 14.4 in36 cm
Tires And Tracks
27.5-inch tracks
- Wheelbase
- 118 inches299 cm
- Weight
- 41000 to 43075 pounds
Tires And Tracks
- Width
- 27.5 inches69 cm
- Width
- 30 inches76 cm
- Width
- 36 inches91 cm
MT845B / 05
Tests (NTTL)
Oced Tractor Test1861
Diesel 16-speed crawlerOctober 4 - 26, 2005Link: OCED Tractor Test 1861 file
PTO performance
Drawbar performance
Gear 6 used for power test.
Gear 3 used for pull test.
- Max Power
- 402.32 hp300.0 kW
- Max Power
- 313.27 hp233.6 kW
- Fuel Use
- 23.5 gal/hour88.9 l/hour
- Fuel Use
- 23.3 gal/hour88.2 l/hour
- Fuel Use
- 23.8 gal/hour90.1 l/hour
- Fuel Use
- 23.6 gal/hour89.3 l/hour
- Power At Rated Engine Speed
- 359.53 hp268.1 kW
- Power At Rated Pto Speed
- 387.05 hp288.6 kW
- Max Pull
- 42532 lbs19292 kg