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International Harvester 3788 vs International Harvester 5488

Verdict: International Harvester 3788 vs International Harvester 5488

The International Harvester 3788 and the International Harvester 5488 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 5488 is the lighter machine (14,710 kg vs 16,520 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 5488 is the newer design (1981 vs 1980). In short: choose the International Harvester 5488 for outright pulling power, or the International Harvester 3788 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
International Harvester 3788 Tractor
International Harvester
85
Fit score
Best match
Clear
International Harvester 5488 Tractor
International Harvester
85
Fit score
Best match
Clear
Rated power
171 hp
187 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
With 18.4-38 rear tires.Reference
With 20.8-38 rear tires.Reference
Total built
2,496Reference
3,951Reference
Steering
hydrostatic powerReference
Original price
$78,340 (1985 4WD )Reference
Final drives
planetaryReference
Differential lock
mechanical rearReference
Engine
Fuel tank
340.7 LReference
Drawbar (claimed)
108.9 kWReference
121.5 kWReference
Drawbar (tested)
105.9 kWReference
121.9 kWReference
Displacement
7.6 LReference
7.6 LReference
Bore/Stroke
109 x 136 mmReference
109 x 136 mmReference
Rated RPM
2500Reference
2400Reference
Idle RPM
780-2750Reference
800-2660Reference
Starter volts
12Reference
12Reference
Oil capacity
18.9 LReference
164.7 LReference
Coolant capacity
32.2 LReference
31.2 LReference
Power at rated engine speed
127.2 kWReference
139.6 kWReference
Max power
105.9 kWReference
121.9 kWReference
Transmission
Transmission
Torque AmplifierReference
Synchro Tri-Six (STS)Reference
Gears
12 forward and 6 reverseReference
18 forward and 6 reverseReference
Clutch
356mm hydraulic dry discReference
PTO & Hydraulics
PTO (claimed)
127.2 kWReference
138.0 kWReference
PTO (tested)
127.2 kWReference
139.6 kWReference
Type
two-range power shiftReference
partial power shiftReference
Valves
2Reference
2Reference
Pump flow
45.4 lpmReference
151.4 lpmReference
Rear Type
IIIReference
IIIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000Reference
1000Reference
Engine RPM
1000@2100Reference
Power at rated PTO speed
124.1 kWReference
Hydraulic system
164.6 LReference
Capacity
164.6 LReference
Total flow
310.4 lpmReference
Steering flow
45.4 lpmReference
Rear lift
3663 kgReference
Dimensions
Wheelbase
279 cmReference
283 cmReference
Weight
16520 to 18620 poundsReference
14710 to 17240 poundsReference
Front tire
18.4-38Reference
14L-16.1Reference
Rear tire
18.4-38Reference
20.8-38Reference
Ag front
18.4-38Reference
14L-16.1Reference
Ag rear
18.4-38Reference
20.8-38Reference
Length
579 cmReference
499 cmReference
Width
258 cmReference
289 cmReference
Height (cab)
294 cmReference
Clearance (front axle)
58 cmReference
Clearance (rear axle)
67 cmReference
Front axle
82 mmReference
Bar rear axle
82 mmReference
101 by 2895 mmReference
Shipping
7493 kgReference
Operating
8446 kgReference
7820 kgReference
Height
294 cmReference
Ground clearance
46 cmReference
Front tread
157 to 218 cmReference
2WD Shipping
6672 kgReference
4WD Shipping
7214 kgReference
3788 Serial Numbers
1980
8801Reference
1981
10866Reference
501Reference
Location:
Right side of tractor frame, by rear axle.Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
Charging amps
100Reference
Batteries
2Reference
Battery volts
12Reference
12Reference
Capacities
Max capacity
10659 kgReference
Fuel
329.3 LReference
Test results
Fuel use
40.5 l/hourReference
43.5 l/hourReference
Max pull
8649 kgReference
8457 kgReference
Speeds
5488 Serial Number Location
5488 Serial Numbers
1982
523Reference
1983
2416Reference
1984
3112Reference
1985
4390Reference
Final
4452Reference

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.

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