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International Harvester 1086 vs International Harvester 6388
Verdict: International Harvester 1086 vs International Harvester 6388
The International Harvester 1086 and the International Harvester 6388 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 131 hp. International Harvester 6388 is the lighter machine (7,239 kg vs 12,300 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 6388 is the newer design (1981 vs 1976). 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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Fit & specs
International Harvester
85
Fit score
Best match
Clear
International Harvester
85
Fit score
Best match
Clear
Rated power
131 hp
131 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
The transmission features three ranges (low, high, and reverse) with four gears (1-4) in each range. The Torque Amplifier (TA) provides an additional high/low selection for each speed. The range and gear can be shifted only when the tractor is stopped. The TA can be shifted while the tractor is in motion.Reference
With 16.9-38 tires.Reference
Total built
47,420Reference
272Reference
Final drives
bull gearReference
—
Differential lock
mechanical rearReference
—
Steering
power assistReference
articulated hydrostatic powerReference
Variants
1086 Hi-Clear
high clearanceReference
—
Engine
Drawbar (claimed)
85.0 kWReference
85.0 kWReference
Drawbar (tested)
84.3 kWReference
83.3 kWReference
Displacement
6.8 LReference
7.1 LReference
Bore/Stroke
109 x 121 mmReference
109 x 127 mmReference
Air cleaner
dual dry elementReference
—
Rated RPM
2400Reference
2400Reference
Coolant capacity
23.7 LReference
32.2 LReference
Oil capacity
85.2 LReference
89.4 LReference
Power at rated engine speed
98.0 kWReference
97.4 kWReference
Max power
84.3 kWReference
83.3 kWReference
Engine
—
117.1 kWReference
Power
—
117.1 kWReference
Starter volts
—
12Reference
Transmission
Gears
16 forward and 8 reverseReference
16 forward and 8 reverseReference
Transmission
Torque AmplifierReference
—
Oil type
IH Hy-Tran/B-6Reference
—
PTO & Hydraulics
PTO (claimed)
96.9 kWReference
96.9 kWReference
PTO (tested)
98.0 kWReference
97.4 kWReference
Hydraulic system
85.2 LReference
89.3 LReference
Type
two-speed power shiftReference
two-range power shiftReference
Capacity
85.2 LReference
89.3 LReference
Valves
2Reference
2 to 4Reference
Pump flow
45.4 lpmReference
68.1 lpmReference
Rear Type
IIIReference
III/IIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000 (1.375)Reference
540/1000Reference
Engine RPM
1000@2100Reference
—
Power at rated PTO speed
99.7 kWReference
95.9 kWReference
Steering flow
—
45.4 lpmReference
Capacities
Fuel
83.3 LReference
526.1 LReference
Dimensions
Wheelbase
269 cmReference
279 cmReference
Weight
12300 to 13030 poundsReference
7239 kgReference
Front tire
10.00-16Reference
16.9-38Reference
Rear tire
18.4-38Reference
16.9-38Reference
2WD Ag front
10.00-16Reference
—
4WD Ag front
13.6-24Reference
—
Ag rear
18.4-38Reference
16.9-38Reference
2WD Length
426 cmReference
—
4WD Length
429 cmReference
—
Width
248 cmReference
258 cmReference
Height (cab)
320 cmReference
—
Ground clearance
66 cmReference
69 cmReference
Bar rear axle
88 mmReference
82 mmReference
Shipping
5910 kgReference
—
2WD Operating
5767 kgReference
—
Ag front
—
16.9-38Reference
Length
—
576 cmReference
Shipping weight
—
7239 kgReference
1086 Serial Number Location
1086 Serial Numbers
1976
8601Reference
—
1977
14725Reference
—
1978
25672Reference
—
1979
34731Reference
—
1980
42186Reference
—
1981
51671Reference
8801Reference
Electrical
Ground
negativeReference
—
Charging system
alternatorReference
—
Charging amps
61 (with cab)Reference
—
Batteries
2Reference
—
Battery CCA
470Reference
—
Battery volts
12Reference
—
Test results
Fuel use
32.2 l/hourReference
31.4 l/hourReference
Max pull
6124 kgReference
7604 kgReference
Speeds
6388 Serial Numbers
1982
—
8962Reference
1983
—
9060Reference
1984
—
9241Reference
1985
—
9361Reference
Location:
—
transmission housing, right sideReference
International Harvester 6388 Height
Hood
—
200 cmReference
Cab
—
287 cmReference
Exhaust
—
315 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.