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International Harvester 15-30 vs International Harvester Cub 185 Lo-Boy

Verdict: International Harvester 15-30 vs International Harvester Cub 185 Lo-Boy

The International Harvester 15-30 and the International Harvester Cub 185 Lo-Boy are both tractors — here is how they stack up on the figures that matter. International Harvester 15-30 leads on rated power with 15 hp against 14 hp. International Harvester Cub 185 Lo-Boy is the lighter machine (679 kg vs 4,077 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester Cub 185 Lo-Boy is the newer design (1974 vs 1917). In short: choose the International Harvester 15-30 for outright pulling power, or the International Harvester Cub 185 Lo-Boy 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 15-30 Tractor
International Harvester
62
Fit score
Best match
Clear
International Harvester Cub 185 Lo-Boy Tractor
International Harvester
62
Fit score
Best match
Clear
Rated power
15 hp
14 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
Gear 1 used for pull test.Reference
Optional creeper range for the standard transmission.Reference
Factories
Chicago, Illinois, USAReference
Total built
6,024Reference
Engine
Fuel tank
109.8 LReference
Drawbar (claimed)
11.2 kWReference
Belt (claimed)
22.4 kWReference
Drawbar (tested)
19.3 kWReference
Belt (tested)
27.5 kWReference
Displacement
11.4 LReference
1.0 LReference
Bore/Stroke
133 x 203 mmReference
67 x 70 mmReference
Rated RPM
575Reference
2300Reference
Coolant capacity
151.4 LReference
9.2 LReference
Belt power (max)
27.5 kWReference
Max power
19.3 kWReference
Fuel system
Zenith 68YY7 carburetorReference
Compression
7.5:1Reference
Firing order
1-3-4-2Reference
Starter volts
12Reference
Oil capacity
6.6 LReference
Sparkplug gap
0.584 mmReference
Transmission
Type
gearReference
creeperReference
Gears
2 forward and 1 reverseReference
6 forward and 2 reverseReference
Dimensions
Weight
4077 kgReference
679 kgReference
Front tire
40x7Reference
4.00-12Reference
Rear tire
66x14Reference
8.3-24Reference
Ag front
40x7 steelReference
4.00-12Reference
Ag rear
66x14 steelReference
9.5x24Reference
Length
356 cmReference
238 cmReference
Width
215 cmReference
132 cmReference
Height
299 cmReference
124 cmReference
Wheelbase
162 cmReference
Lawn/turf front
20x8.00-10Reference
Lawn/turf rear
12.4-16Reference
Ground clearance
33 cmReference
Front tread
106 cmReference
Rear tread
106 cmReference
15-30 Serial Number Location
15-30 Serial Numbers
1917
TV101Reference
1918
EC501Reference
1919
EC1366Reference
1920
EC3018Reference
1921
EC4086Reference
Final
EC4906Reference
Test results
Max pull
2263 kgReference
PTO & Hydraulics
PTO (claimed)
10.4 kWReference
Hydraulic system
6.6 LReference
Capacity
6.6 LReference
Pressure
137.9 barReference
Pump flow
7.6 lpmReference
Rear Type
I (optional)Reference
Rear PTO
independentReference
Clutch
mechanical dry discReference
Rear PTO Type
1600 (counter-clockwise)Reference
Capacities
Fuel
30.3 LReference
International Harvester 185 Lo-Boy attachments
185 Lo-Boy Serial Number Location
185 Lo-Boy Serial Numbers
1974
37001Reference
1975
37316Reference
1976
42241Reference
Links
Electrical
Ground
negativeReference
Charging amps
15 (generator)Reference
Battery volts
12Reference

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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