Compare/Challenger MT851 vs Challenger MT865

Challenger MT851 vs Challenger MT865

Verdict: Challenger MT851 vs Challenger MT865

The Challenger MT851 and the Challenger MT865 are both tractors — here is how they stack up on the figures that matter. Challenger MT851 leads on rated power with 504 hp against 500 hp. Challenger MT865 is the lighter machine (18,597 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 MT851 is the newer design (2021 vs 2002). In short: choose the Challenger MT851 for outright pulling power, or the Challenger MT865 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

500 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Challenger (a part of AGCO)Reference

liquid-cooled inlineReference

Gear 3 used for pull test.Reference

Drive

crawlerReference

Variants

1151 Vario MT

similar Fendt modelReference

—

Engine

Fuel tank

1324.8 LReference

—

Exhaust fluid (DEF)

135.1 LReference

—

Engine (gross)

376.0 kWReference

372.9 kWReference

Displacement

15.3 LReference

15.8 LReference

Bore/Stroke

138 x 170 mmReference

140 x 171 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

—

Drawbar (tested)

—

282.4 kWReference

Emissions

—

Tier 2Reference

Power (gross)

—

372.9 kWReference

Air cleaner

—

dual paper elementsReference

Compression

—

15.5:1Reference

Max power

—

282.4 kWReference

Power at rated engine speed

—

331.2 kWReference

Transmission

Accu-VTReference

CaterpillarReference

Gears

infinite forward and reverseReference

16 forward and 4 reverseReference

Clutch

—

hydraulic wet discReference

PTO & Hydraulics

Type

continuously-variable transmissionReference

full power shiftReference

Pressure

200.0 barReference

Rear valves

4 to 8Reference

4 to 6Reference

Pump flow

439.8 lpmReference

223.3 lpmReference

Rear PTO

independentReference

Rear PTO Type

1000/1000EReference

1000 (1.75)Reference

PTO (claimed)

—

310.2 kWReference

PTO (tested)

—

390.4 kWReference

Hydraulic system

—

264.9 LReference

Capacity

—

264.9 LReference

SCV flow

—

113.6 lpmReference

Rear Type

—

IVNReference

Rear lift

—

8845 kgReference

Power at rated PTO speed

—

366.1 kWReference

Dimensions

Wheelbase

299 cmReference

Weight

19051 kgReference

18597 kgReference

Length

675 cmReference

Width

294 cmReference

360 cmReference

Height

375 cmReference

—

Max weight

26762 kgReference

—

Ground clearance

35 cmReference

47 cmReference

Gauge

223 to 325 cmReference

228 to 325 cmReference

Height (cab)

—

350 cmReference

Height (exhaust)

—

352 cmReference

Shipping

—

18597 kgReference

Ballasted

—

22680 kgReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

325Reference

160Reference

Batteries

3Reference

4Reference

Battery volts

12Reference

Capacities

Fuel

—

1249.0 LReference

Max capacity

—

27216 kgReference

MT865 Serial Numbers

2002

—

BDS20000Reference

2003

—

BDS30000Reference

2004

—

BDS40000Reference

Location:

—

Serial number plate on the left side of the tractor frame.Reference

Challenger MT865 Tracks

Test results

Fuel use

—

101.4 l/hourReference

Max pull

—

19601 kgReference

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.