Compare/Challenger MT851 vs Challenger MT975C

Challenger MT851 vs Challenger MT975C

Verdict: Challenger MT851 vs Challenger MT975C

The Challenger MT851 and the Challenger MT975C are both tractors — here is how they stack up on the figures that matter. Challenger MT975C leads on rated power with 518 hp against 504 hp. Challenger MT975C is the lighter machine (18,038 kg vs 19,051 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Challenger MT975C holds more fuel (1476.2 L vs 1324.8 L) for longer stints between fills. Challenger MT851 is the newer design (2021 vs 2009). In short: choose the Challenger MT975C for outright pulling power, or the Challenger MT851 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

Challenger

Fit score

Best match

Clear

Challenger

Fit score

Best match

Clear

Rated power

504 hp

518 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Challenger (a part of AGCO)Reference

liquid-cooled inlineReference

Gear 5 used for pull test.Reference

Drive

crawlerReference

—

Final drives

—

inboard planetaryReference

Differential lock

—

electro-hydraulic front and rear optionalReference

Variants

1151 Vario MT

similar Fendt modelReference

—

Engine

Fuel tank

1324.8 LReference

1476.2 LReference

Exhaust fluid (DEF)

135.1 LReference

—

Engine (gross)

376.0 kWReference

—

Displacement

15.3 LReference

18.1 LReference

Bore/Stroke

138 x 170 mmReference

145 x 183 mmReference

Rated Power (gross)

376.0 kWReference

—

Rated RPM

1730Reference

2100Reference

Torque

2500.5 NmReference

—

Torque RPM

1450Reference

—

Starter

electricReference

Starter volts

24Reference

12Reference

Oil change

500 hReference

—

Engine

—

436.2 kWReference

Drawbar (tested)

—

390.0 kWReference

Emissions

—

Tier IIIReference

Power

—

436.2 kWReference

Max power

—

390.0 kWReference

Power at rated engine speed

—

386.4 kWReference

Fuel Type

—

dieselReference

No of Cylinders

—

6 cylinderReference

Rated engine speed

—

2,100 RPMReference

Emissions compliance

—

Tier IIIReference

Bore and stroke

—

5.71x7.2 inchesReference

Cooling system

—

liquid-cooledReference

Transmission

Accu-VTReference

Caterpillar PowershiftReference

Gears

infinite forward and reverseReference

16 forward and 4 reverseReference

Transmission Type

—

PowershiftReference

forward and reverse options

—

Powershift -16F and 4RReference

Wheel Drive

—

4WDReference

Track Drive type

—

inboard planetaryReference

PTO & Hydraulics

Type

continuously-variable transmissionReference

full power shiftReference

Pressure

200.0 barReference

Rear valves

4 to 8Reference

—

Pump flow

439.8 lpmReference

136.3 lpmReference

Rear PTO

independentReference

Rear PTO Type

1000/1000EReference

1000 (1.75)Reference

PTO (claimed)

—

316.9 kWReference

PTO (tested)

—

436.0 kWReference

Valves

—

4 to 6Reference

Total flow

—

223.3 lpmReference

Power at rated PTO speed

—

411.9 kWReference

Dimensions

Wheelbase

299 cmReference

394 cmReference

Weight

19051 kgReference

18038 kgReference

Length

675 cmReference

756 cmReference

Width

294 cmReference

508 cmReference

Height

375 cmReference

—

Max weight

26762 kgReference

27216 kgReference

Ground clearance

35 cmReference

—

Gauge

223 to 325 cmReference

—

Front tire

—

710/70R42Reference

Rear tire

—

710/70R42Reference

Ag front

—

480/80R46Reference

Ag rear

—

480/80R46Reference

Height (cab)

—

383 cmReference

Shipping weight

—

18038 kgReference

Front axle

—

144 by 2997 mmReference

Bar rear axle

—

144 by 2997 mmReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

325Reference

185Reference

Batteries

3Reference

4Reference

Battery volts

12Reference

Battery CCA

—

1000Reference

Total cold cranking amps

—

1,000 CCAReference

Test results

Fuel use

—

126.8 l/hourReference

Max pull

—

20905 kgReference

General

Make & Model

—

Challenger (a part of AGCO)Reference

Cruise control

—

AvailableReference

Rear Axle Type

—

Bar 5.7 by 118 inchesReference

Front Axle Type

—

Bar: 5.7 by 118 inchesReference

Country of manufacturer

—

USAReference

Capacities

Capacity

—

1,106 ciReference

Hydraulics

Capacity Valves

—

24 valveReference

Pump Rated Output (total)

—

59 gpmReference

Hydraulics Type

—

closed center pressure-flow compensatedReference

Maximum operating pressure

—

2,900 psiReference

Remote Valves

—

4 to 6 valvesReference

PTO

PTO Power

—

425 hpReference

Rear PTO Power

—

AvailableReference

Rear PTO RPM

—

1,000 RPMReference

Dimensions & weight

Height Over Cab

—

383.5 cmReference

Overall Length

—

756.9 cmReference

Overall Width

—

508 cmReference

Overall weight

—

18,038 kgReference

Wheels & tyres

Rear Wheel Type

—

710/70R42Reference

Front Wheel Type

—

710/70R42Reference

Operator station

Cab Availability

—

AvailableReference

Seat Suspension

—

TRUEReference

Steering & brakes

Steering type

—

Articulated powerReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.