Compare/Hesston 640 vs Hesston 70-90

Hesston 640 vs Hesston 70-90

Verdict: Hesston 640 vs Hesston 70-90

The Hesston 640 and the Hesston 70-90 are both tractors — here is how they stack up on the figures that matter. Hesston 640 leads on rated power with 63 hp against 62 hp. Hesston 640 is the lighter machine (2,145 kg vs 6,798 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Hesston 70-90 is the newer design (1985 vs 1981). In short: choose the Hesston 640 for outright pulling power, or the Hesston 70-90 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

Hesston

Fit score

Best match

Clear

Hesston

Fit score

Best match

Clear

Rated power

63 hp

62 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Hesston (a part of Fiat)Reference

FiatReference

liquid-cooledReference

With 18.4-30 rear tires.Reference

Original price

$17,700 (1984)Reference

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Drive

4x4 MFWD 4WD optionalReference

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Distributor

—

HesstonReference

Final drives

—

planetaryReference

Differential lock

—

mechanical rearReference

Engine

Drawbar (claimed)

40.8 kWReference

—

Displacement

3.5 LReference

3.6 LReference

Fuel tank

—

79.9 LReference

Engine

—

52.2 kWReference

Drawbar (tested)

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40.2 kWReference

Bore/Stroke

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100 x 115 mmReference

Power

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52.2 kWReference

Fuel system

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direct injectionReference

Pre-heating

—

ether injectionReference

Compression

—

17:1Reference

Rated RPM

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2500Reference

Starter

—

electricReference

Starter volts

—

12Reference

Power at rated engine speed

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46.4 kWReference

Max power

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40.2 kWReference

Transmission

Gears

8 forward and 2 reverseReference

20 forward and 8 reverseReference

Clutch

—

279.4mm dry discReference

PTO & Hydraulics

PTO (claimed)

47.0 kWReference

46.2 kWReference

Type

open centerReference

creeperReference

Valves

1Reference

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Rear Type

I/IIReference

IIReference

Rear PTO

independentReference

Rear PTO Type

540Reference

540 (1.375)Reference

PTO (tested)

—

46.4 kWReference

Pressure

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186.3 barReference

Rear valves

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2 or 3Reference

Pump flow

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41.6 lpmReference

Rear lift

—

2364 kgReference

Engine RPM

—

540@2198Reference

Power at rated PTO speed

—

46.2 kWReference

Dimensions

Weight

2145 kgReference

6798 to 7436 poundsReference

Front tire

7.50-16Reference

Rear tire

14.9-30Reference

16.9-30Reference

Ag front

7.50-16Reference

—

Ag rear

14.9-30Reference

13.6-38Reference

2WD Wheelbase

—

226 cmReference

4WD Wheelbase

—

227 cmReference

2WD Ag front

—

9.5L-15Reference

4WD Ag front

—

12.4-24Reference

2WD Length

—

343 cmReference

4WD Length

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356 cmReference

2WD Front tread

—

140 to 191 cmReference

4WD Front tread

—

162 to 195 cmReference

Rear tread

—

139 to 200 cmReference

2WD

—

3083 kgReference

4WD

—

3372 kgReference

Operating

—

3220 kgReference

Ballasted

—

3526 kgReference

Variants

70-90DT

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4WDReference

Electrical

Ground

—

negativeReference

Charging system

—

alternatorReference

Charging amps

—

65Reference

Battery volts

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12Reference

Hesston 70-90 Height

2WD Hood

—

147 cmReference

4WD Hood

—

163 cmReference

ROPS

—

257 cmReference

Cab

—

252 cmReference

Test results

Fuel use

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14.4 l/hourReference

Max pull

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2829 kgReference

Speeds

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.