Challenger MT845C

The Challenger MT845C is a tractor produced by Challenger. It is equipped with a 923 ci 15.1 L engine. The listed engine power is Diesel (gross): 440 hp / 328.1 kW. Transmission: Caterpillar Powershift. Drive type: crawler. Operating weight: 41,000 lbs 18597 kg.

Engine Power

Diesel (gross): 440 hp / 328.1 kW

Drive & Traction

crawler

Fuel & Capacities

305 gal 1154.4 L

Transmission

Caterpillar Powershift

Operating Weight

41,000 lbs 18597 kg

Overview

	2009 - 2013 MT800C SeriesAgricultural Crawler tractor MT800C Series Agricultural Crawler tractor

Production
Manufacturer	Challenger (a part of AGCO)
Agricultural Crawler tractor
Built in Jackson, Minnesota, USA
Original price was $397,457 in 2013

Challenger MT845C Engine
Caterpillar 15.1L 6-cyl diesel
Fuel tank	305 gal 1154.4 L
Engine details ...

Challenger MT845C Transmission
16-speed full power shift
Transmission details ...

Challenger MT845C Power
Engine (gross)	440 hp 328.1 kW
PTO (claimed)	360 hp 268.5 kW
Drawbar (tested)	331.68 hp 247.3 kW
PTO (tested)	442.53 hp 330.0 kW
Performance test details ...

Mechanical
Drive	crawler
Steering	speed sensitive differential
Hydraulic wet discs brakes
Trailer brakes	hydraulic OptOptional
Cab standard with air-conditioning.

Hydraulics
Type	closed center pressure-flow compensated
Pressure	2900 psi 200.0 bar
Valves	4 to 6
SCV flow	36 gpm 136.3 lpm
Total flow	43.5 gpm 164.6 lpm
	59 gpmOptOptional 223.3 lpm

Tractor hitch
Rear Type	III/IVN
	IV
Rear lift	19500 lbs 8845 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000 (1.75)

Dimensions & Tracks
Wheelbase	118 inches 299 cm
Weight	41,000 lbs 18597 kg
30-inch tracks
Full dimensions and tracks ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	185
Batteries	4
Battery CCA	1000
Battery volts	12

References

Challenger MT800C/MT900C published in 2008, by AGCO

Engine

Engine Detail — 923 ci / 15.1 L Diesel

Manufacturer	Caterpillar C15 ACERT
Configuration	turbocharged aftercooled diesel, 6-cylinder 24-valve, liquid-cooled
Displacement	923 ci 15.1 L
Bore/Stroke	5.4x6.75 inches 137 x 171 mm
Emissions	Tier III
Power (gross)	440 hp 328.1 kW
Fuel system	mechanical electric injector unit (MEUI)
Rated RPM	2100
Starter	electric
Starter volts	12

Challenger MT845C Engine

Transmission

Transmission — Caterpillar Powershift

Transmission	Caterpillar Powershift
Type	full power shift
Gears	16 forward and 4 reverse
Clutch	hydraulic wet discs

Dimensions

Challenger MT845C Tracks
Width	30 inches 76 cm
Width	18 inches 45 cm
Width	36 inches 91 cm

Dimensions
Wheelbase	118 inches 299 cm
Length	270 inches 685 cm
Width	141.8 inches 360 cm
Height (cab)	138.1 inches 350 cm
Shipping weight	41,000 lbs 18597 kg
Max weight	50,000 lbs 22680 kg
Clearance (drawbar)	14.4 inches 36 cm
Gauge	90 to 128 inches 228 to 325 cm

Tests

OCED Tractor Test 1953
Diesel 16-speed crawler May 12 - 20, 2009 Link: OCED Tractor Test 1953 file
PTO performance
Max power	442.53 hp 330.0 kW
Fuel use	24.8 gal/hour 93.9 l/hour
Power at rated engine speed	390.78 hp 291.4 kW
Fuel use	24.0 gal/hour 90.8 l/hour
Power at rated PTO speed	417.21 hp 311.1 kW
Fuel use	24.8 gal/hour 93.9 l/hour
Drawbar performance
Max power	331.68 hp 247.3 kW
Fuel use	24.1 gal/hour 91.2 l/hour
Gear 6 used for power test.
Max pull	42616 lbs 19330 kg
Gear 3 used for pull test.

Photos

Challenger MT845C tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT845C based on its 440 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁	Commercial / Field Scale	High horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙	Commercial / Field Scale	Broad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Challenger MT845C.

Estimated Continuous Field Runtime: 13.3 hrs

Approximately 13.3 hours of continuous field operation at ~75% rated power on a full tank (305 gal / 1154.6 L).

Estimated 75% Load Fuel Burn~22.9 gal/hr (86.6 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours