Compare/International Harvester Hydro 186 vs International Harvester TD-18A Series 182

International Harvester Hydro 186 vs International Harvester TD-18A Series 182

Verdict: International Harvester Hydro 186 vs International Harvester TD-18A Series 182

The International Harvester Hydro 186 and the International Harvester TD-18A Series 182 are both tractors — here is how they stack up on the figures that matter. International Harvester Hydro 186 leads on rated power with 105 hp against 103 hp. International Harvester TD-18A Series 182 is the lighter machine (9,752 kg vs 11,500 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester Hydro 186 is the newer design (1976 vs 1949). In short: choose the International Harvester Hydro 186 for outright pulling power, or the International Harvester TD-18A Series 182 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Best match

Clear

Rated power

105 hp

103 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

18.4-34 rear tires.Reference

1550 RPM diesel 6-speed crawlerSeptember 3 - 14, 1957Link: Nebraska Tractor Test 629 fileReference

Original price

$33,900 (1981)Reference

—

Final drives

bull gearReference

—

Steering

power assistReference

hydraulic steering clutchesReference

Total built

—

22,016Reference

Drive

—

crawlerReference

Variants

Hydro 186 Hi-Clear

high clearanceReference

—

Engine

Drawbar (claimed)

61.1 kWReference

81.3 kWReference

Drawbar (tested)

59.5 kWReference

79.5 kWReference

Displacement

7.1 LReference

11.3 LReference

Bore/Stroke

109 x 127 mmReference

121 x 165 mmReference

Air cleaner

dual dry elementReference

—

Rated RPM

2400Reference

1550 (late)Reference

Coolant capacity

24.6 LReference

98.4 LReference

Oil capacity

107.9 LReference

—

Power at rated engine speed

78.3 kWReference

—

Max power

59.5 kWReference

79.5 kWReference

Fuel tank

—

227.1 LReference

Aux. fuel

—

5.0 LReference

Belt (claimed)

—

87.2 kWReference

Belt (tested)

—

90.7 kWReference

Compression

—

15.04:1Reference

Starter

—

gasoline-startReference

Starter volts

—

12Reference

Belt power (max)

—

90.7 kWReference

PTO & Hydraulics

PTO (claimed)

77.6 kWReference

—

PTO (tested)

78.3 kWReference

—

Hydraulic system

107.9 LReference

—

Type

closed centerReference

gearReference

Capacity

107.9 LReference

—

Valves

2Reference

—

Pump flow

45.4 lpmReference

—

Rear Type

IIReference

—

Rear lift (at 24"/610mm)

3020 kgReference

—

Rear PTO

independentReference

—

Rear PTO Type

540/1000 (1.375)Reference

—

Engine RPM

1000@2100Reference

—

Power at rated PTO speed

74.8 kWReference

—

Capacities

Fuel

83.3 LReference

—

Diameter

—

29 cmReference

RPM

—

906Reference

Speed

—

849.78 meters/minReference

Dimensions

Wheelbase

269 cmReference

—

Weight

11500 to 13135 poundsReference

9752 kgReference

Front tire

10.00-16Reference

—

Rear tire

18.4-34Reference

—

Ag front

10.00-16Reference

—

Ag rear

18.4-34Reference

—

2WD Length

424 cmReference

—

4WD Length

429 cmReference

—

Width

248 cmReference

241 cmReference

Height (cab)

317 cmReference

—

Ground clearance

66 cmReference

—

Bar rear axle

82 mmReference

—

Shipping

5601 kgReference

—

Operating

5958 kgReference

—

Length

—

421 cmReference

Height

—

269 cmReference

Hydro 186 Serial Numbers

1976

8601Reference

—

1977

8813Reference

—

1978

9806Reference

—

1979

10626Reference

—

1980

11465Reference

—

1981

12279Reference

—

Location:

Rear axle.Reference

upper-left dashReference

Electrical

Ground

negativeReference

—

Charging system

alternatorReference

—

Charging amps

61 (with cab)Reference

—

Batteries

2Reference

—

Battery CCA

470Reference

—

Battery volts

12Reference

—

Test results

Fuel use

27.6 l/hourReference

—

Max pull

5131 kgReference

12134 kgReference

Belt fuel use (max)

—

34.1 l/hourReference

Transmission

hydrostaticReference

—

Gears

variable, two-range forward and reverseReference

6 forward and 2 reverseReference

Oil type

IH Hy-Tran/B-6Reference

—

Speeds

TD-18A Serial Numbers

1949

—

22536 (TDR)Reference

1950

—

22837 (TDR)Reference

1951

—

24668 (TDR)Reference

1952

—

27245 (TDR)Reference

1953

—

29201 (TDR)Reference

1954

—

32089 (TDR)Reference

1955

—

33650 (TD181)Reference

1956

—

36101 (TD182)Reference

1957

—

37882 (TD182)Reference

1958

—

38805 (TD182)Reference

Final

—

38861 (TD182)Reference

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.