Compare/International Harvester 786 vs International Harvester A-766

International Harvester 786 vs International Harvester A-766

Verdict: International Harvester 786 vs International Harvester A-766

The International Harvester 786 and the International Harvester A-766 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 80 hp. International Harvester A-766 is the lighter machine (4,672 kg vs 10,600 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 786 is the newer design (1980 vs 1972). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Best match

Clear

Rated power

80 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

18.4-34 rear tires.Reference

Four gears (1-4) in two ranges (low/high) with the Torque Amplifier (TA) power shift. The TA allows a shift-on-the-move between direct drive and a lower speed.Reference

Total built

1,844Reference

—

Final drives

bull gearReference

spur gearReference

Steering

power assistReference

—

Engine

Drawbar (tested)

51.5 kWReference

—

Displacement

5.9 LReference

5.1 LReference

Bore/Stroke

98 x 129 mmReference

98 x 111 mmReference

Air cleaner

dual dry elementReference

dual stage dryReference

Rated RPM

2400Reference

2300Reference

Coolant capacity

22.7 LReference

—

Oil capacity

85.2 LReference

—

Power at rated engine speed

59.8 kWReference

—

Max power

51.5 kWReference

—

Fuel tank

—

140.0 LReference

Engine

—

73.1 kWReference

Power

—

73.1 kWReference

Compression

—

16:1Reference

Torque

—

336.3 NmReference

Torque RPM

—

1600Reference

Starter

—

electricReference

Starter volts

—

12Reference

Transmission

Torque AmplifierReference

Gears

16 forward and 8 reverseReference

Oil type

IH Hy-Tran/B-6Reference

—

Clutch

—

dry discReference

PTO & Hydraulics

PTO (tested)

59.8 kWReference

—

Hydraulic system

85.2 LReference

—

Type

two-speed power shiftReference

Capacity

85.2 LReference

—

Rear Type

II/IReference

IIReference

Rear PTO

independentReference

Rear PTO Type

540/1000 (1.375)Reference

540/1000Reference

Power at rated PTO speed

57.7 kWReference

—

PTO (claimed)

—

59.7 kWReference

Pump flow

—

45.4 lpmReference

Capacities

Fuel

83.3 LReference

—

Dimensions

Wheelbase

256 cmReference

266 cmReference

Weight

10600 to 11590 poundsReference

4672 kgReference

Front tire

9.5L-15Reference

Rear tire

18.4-34Reference

Ag front

9.5L-15Reference

Ag rear

18.4-34Reference

Length

419 cmReference

395 cmReference

Width

259 cmReference

231 cmReference

Height (ROPS)

284 cmReference

—

Shipping weight

4808 kgReference

—

Operating weight

5257 kgReference

4672 kgReference

Ground clearance

33 cmReference

—

Bar rear axle

82 mmReference

—

Height (steering wheel)

—

215 cmReference

Ballasted weight

—

5388 kgReference

Front tread

—

152 to 213 cmReference

Rear tread

—

142 to 254 cmReference

786 Serial Numbers

1980

6601Reference

—

1981

8936Reference

—

Location:

Serial number plate on the right-frame of the tractor frame.Reference

Left side of clutch housingReference

Electrical

Ground

negativeReference

—

Charging system

alternatorReference

—

Charging amps

61 (with cab)Reference

—

Batteries

2Reference

—

Battery CCA

470Reference

—

Battery volts

12Reference

—

Test results

Fuel use

18.5 l/hourReference

—

Max pull

4521 kgReference

—

Speeds

A-766 Serial Numbers

1972

—

501Reference

1973

—

1140Reference

1974

—

1811Reference

1975

—

2553Reference

1976

—

3270Reference

1977

—

3999Reference

1978

—

4604Reference

Final

—

4771Reference

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.