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International Harvester 3488 vs International Harvester 3688
Verdict: International Harvester 3488 vs International Harvester 3688
The International Harvester 3488 and the International Harvester 3688 are both tractors — here is how they stack up on the figures that matter. International Harvester 3688 leads on rated power with 114 hp against 113 hp. International Harvester 3688 is the lighter machine (11,300 kg vs 11,600 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 3688 for outright pulling power, or the International Harvester 3488 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
85
Fit score
Best match
Clear
International Harvester
85
Fit score
Best match
Clear
Rated power
113 hp
114 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
Gear 2.3 MPH (LO) used for pull test.Reference
With 18.4-34R1 rear tires.Reference
Total built
465Reference
2,572Reference
Final drives
—
bull gearReference
Differential lock
—
rearReference
Engine
Drawbar (claimed)
61.9 kWReference
74.7 kWReference
Drawbar (tested)
60.0 kWReference
74.0 kWReference
Displacement
7.6 LReference
7.1 LReference
Bore/Stroke
109 x 136 mmReference
109 x 127 mmReference
Air cleaner
dual paper elementsReference
dual dry elmementReference
Compression
15.7:1Reference
16:1Reference
Rated RPM
2400Reference
2400Reference
Idle RPM
900-2400Reference
900-2400Reference
Starter volts
12Reference
12Reference
Coolant capacity
28.4 LReference
24.6 LReference
Oil capacity
107.9 LReference
85.2 LReference
Power at rated engine speed
83.9 kWReference
84.8 kWReference
Max power
60.0 kWReference
74.0 kWReference
Transmission
Gears
infinite forward and reverse (2-range)Reference
16 forward and 8 reverseReference
Clutch
—
355.6mm cerametallic discReference
PTO & Hydraulics
PTO (claimed)
83.5 kWReference
84.3 kWReference
PTO (tested)
83.9 kWReference
84.8 kWReference
Hydraulic system
107.9 LReference
85.2 LReference
Type
hydrostaticReference
partial power shiftReference
Capacity
107.9 LReference
85.2 LReference
Valves
2 or 3Reference
2 to 4Reference
Pump flow
68.1 lpmReference
68.1 lpmReference
Total flow
102.2 lpmReference
102.2 lpmReference
Steering flow
45.4 lpmReference
45.4 lpmReference
Rear Type
IIReference
IIReference
Control
draft sensingReference
draft sensingReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000Reference
540/1000 (1.375)Reference
Engine RPM
1000@2100Reference
1000@2100Reference
Power at rated PTO speed
79.9 kWReference
83.9 kWReference
Capacities
Fuel
189.2 LReference
189.2 LReference
Dimensions
Wheelbase
266 cmReference
266 cmReference
Weight
11600 to 12880 poundsReference
11300 to 13200 poundsReference
Front tire
10.00-16Reference
11L-15Reference
Rear tire
18.4-34Reference
18.4-34Reference
Ag front
10.00-16Reference
11L-15Reference
Ag rear
18.4-34Reference
18.4-34Reference
Length
467 cmReference
467 cmReference
Width
259 cmReference
259 cmReference
Height (cab)
284 cmReference
284 cmReference
Shipping weight
5261 kgReference
5125 kgReference
Operating weight
5842 kgReference
5987 kgReference
Ground clearance
33 cmReference
33 cmReference
Rear axle
82 by 2997 mmReference
82 by 2997 mmReference
Front tread
152 to 213 cmReference
152 to 213 cmReference
Rear tread
167 to 290 cmReference
167 to 326 cmReference
3488 Serial Numbers
Location:
Serial number plate on the right side of the tractor frame, ahead of the rear axle.Reference
Serial number plate on the right side of the tractor frame, ahead of the rear axle.Reference
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Test results
Fuel use
30.7 l/hourReference
26.9 l/hourReference
Max pull
5512 kgReference
5556 kgReference
Variants
3688 Hi-Clear
—
high-clearance modelReference
3688 Serial Numbers
1981
—
501Reference
1982
—
1743Reference
1983
—
2482Reference
1984
—
2695Reference
1985
—
3068Reference
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.