Compare/International Harvester 5488 vs International Harvester 6788

International Harvester 5488 vs International Harvester 6788

Verdict: International Harvester 5488 vs International Harvester 6788

The International Harvester 5488 and the International Harvester 6788 are both tractors — here is how they stack up on the figures that matter. International Harvester 5488 leads on rated power with 187 hp against 171 hp. International Harvester 6788 is the lighter machine (7,674 kg vs 14,710 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the International Harvester 5488 for outright pulling power, or the International Harvester 6788 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

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Best match

Clear

Rated power

187 hp

171 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

With 20.8-38 rear tires.Reference

With 18.4-38 tires.Reference

Total built

3,951Reference

347Reference

Original price

$78,340 (1985 4WD )Reference

—

Final drives

planetaryReference

—

Differential lock

mechanical rearReference

—

Engine

Drawbar (claimed)

121.5 kWReference

105.9 kWReference

Drawbar (tested)

121.9 kWReference

105.9 kWReference

Displacement

7.6 LReference

Bore/Stroke

109 x 136 mmReference

Rated RPM

2400Reference

2500Reference

Idle RPM

800-2660Reference

—

Starter volts

12Reference

—

Oil capacity

164.7 LReference

89.4 LReference

Coolant capacity

31.2 LReference

32.2 LReference

Power at rated engine speed

139.6 kWReference

127.2 kWReference

Max power

121.9 kWReference

105.9 kWReference

Engine

—

149.1 kWReference

Power

—

149.1 kWReference

Transmission

Synchro Tri-Six (STS)Reference

—

Gears

18 forward and 6 reverseReference

12 forward and 6 reverseReference

PTO & Hydraulics

PTO (claimed)

138.0 kWReference

126.8 kWReference

PTO (tested)

139.6 kWReference

127.2 kWReference

Hydraulic system

164.6 LReference

89.3 LReference

Type

partial power shiftReference

two-range power shiftReference

Capacity

164.6 LReference

89.3 LReference

Valves

2Reference

2 to 4Reference

Pump flow

151.4 lpmReference

68.1 lpmReference

Total flow

310.4 lpmReference

—

Steering flow

45.4 lpmReference

Rear Type

IIIReference

III/IIReference

Rear lift

3663 kgReference

—

Rear PTO

independentReference

Rear PTO Type

1000Reference

Power at rated PTO speed

—

124.1 kWReference

Capacities

Fuel

329.3 LReference

526.1 LReference

Dimensions

Wheelbase

283 cmReference

279 cmReference

Weight

14710 to 17240 poundsReference

7674 kgReference

Front tire

14L-16.1Reference

18.4-38Reference

Rear tire

20.8-38Reference

18.4-38Reference

Ag front

14L-16.1Reference

18.4-38Reference

Ag rear

20.8-38Reference

18.4-38Reference

Length

499 cmReference

579 cmReference

Width

289 cmReference

284 cmReference

Height

294 cmReference

—

Ground clearance

46 cmReference

72 cmReference

Bar rear axle

101 by 2895 mmReference

82 mmReference

Front tread

157 to 218 cmReference

—

2WD Shipping

6672 kgReference

—

4WD Shipping

7214 kgReference

—

Operating

7820 kgReference

—

Shipping weight

—

7674 kgReference

5488 Serial Number Location

5488 Serial Numbers

1981

501Reference

8801Reference

1982

523Reference

8810Reference

1983

2416Reference

8840Reference

1984

3112Reference

8871Reference

1985

4390Reference

8946Reference

Final

4452Reference

—

Electrical

Ground

negativeReference

—

Battery volts

12Reference

—

Test results

Fuel use

43.5 l/hourReference

40.5 l/hourReference

Max pull

8457 kgReference

8649 kgReference

Speeds

6788 Serial Numbers

Location:

—

transmission housing, right sideReference

International Harvester 6788 Height

Hood

—

202 cmReference

Cab

—

289 cmReference

Exhaust

—

318 cmReference

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.