Compare/International Harvester 3688 vs International Harvester TD-24

International Harvester 3688 vs International Harvester TD-24

Verdict: International Harvester 3688 vs International Harvester TD-24

The International Harvester 3688 and the International Harvester TD-24 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 111 hp. International Harvester 3688 is the lighter machine (11,300 kg vs 17,395 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 3688 is the newer design (1981 vs 1947). In short: choose the International Harvester 3688 for outright pulling power, or the International Harvester TD-24 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Best match

Clear

Rated power

114 hp

111 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

With 18.4-34R1 rear tires.Reference

Diesel 8-speed crawlerSeptember 3 - 14, 1957Link: Nebraska Tractor Test 630 fileReference

Total built

2,572Reference

7,500Reference

Final drives

bull gearReference

—

Differential lock

rearReference

—

Drive

—

crawlerReference

Steering

—

hydraulicReference

Variants

3688 Hi-Clear

high-clearance modelReference

—

Engine

Drawbar (claimed)

74.7 kWReference

82.8 kWReference

Drawbar (tested)

74.0 kWReference

125.3 kWReference

Displacement

7.1 LReference

17.9 LReference

Bore/Stroke

109 x 127 mmReference

146 x 178 mmReference

Air cleaner

dual dry elmementReference

—

Compression

16:1Reference

15.22:1Reference

Rated RPM

2400Reference

1375Reference

Idle RPM

900-2400Reference

—

Starter volts

12Reference

24Reference

Coolant capacity

24.6 LReference

140.1 LReference

Oil capacity

85.2 LReference

28.4 LReference

Power at rated engine speed

84.8 kWReference

—

Max power

74.0 kWReference

125.3 kWReference

Fuel tank

—

321.7 LReference

Aux. fuel

—

8.1 LReference

Starter

—

gasoline-ignitionReference

Transmission

Gears

16 forward and 8 reverseReference

8 forward and reverseReference

Clutch

355.6mm cerametallic discReference

dry discReference

PTO & Hydraulics

PTO (claimed)

84.3 kWReference

—

PTO (tested)

84.8 kWReference

—

Hydraulic system

85.2 LReference

—

Type

partial power shiftReference

gearReference

Capacity

85.2 LReference

—

Valves

2 to 4Reference

—

Pump flow

68.1 lpmReference

—

Total flow

102.2 lpmReference

—

Steering flow

45.4 lpmReference

—

Rear Type

IIReference

—

Control

draft sensingReference

—

Rear PTO

independentReference

—

Rear PTO Type

540/1000 (1.375)Reference

—

Engine RPM

1000@2100Reference

—

Power at rated PTO speed

83.9 kWReference

—

Capacities

Fuel

189.2 LReference

—

Dimensions

Wheelbase

266 cmReference

—

Weight

11300 to 13200 poundsReference

17395 kgReference

Front tire

11L-15Reference

—

Rear tire

18.4-34Reference

—

Ag front

11L-15Reference

—

Ag rear

18.4-34Reference

—

Length

467 cmReference

463 cmReference

Width

259 cmReference

Height (cab)

284 cmReference

—

Shipping weight

5125 kgReference

17395 kgReference

Operating weight

5987 kgReference

—

Ground clearance

33 cmReference

—

Rear axle

82 by 2997 mmReference

—

Front tread

152 to 213 cmReference

—

Rear tread

167 to 326 cmReference

—

Height

—

242 cmReference

3688 Serial Numbers

1981

501Reference

—

1982

1743Reference

—

1983

2482Reference

—

1984

2695Reference

—

1985

3068Reference

—

Location:

Serial number plate on the right side of the tractor frame, ahead of the rear axle.Reference

—

Electrical

Ground

negativeReference

—

Battery volts

12Reference

—

Test results

Fuel use

26.9 l/hourReference

—

Max pull

5556 kgReference

18656 kgReference

Speeds

TD-24 Serial Number Location

TD-24 Serial Numbers

1947

—

506 (TDE)Reference

1948

—

515 (TDE)Reference

1949

—

1501 (TDE)Reference

1950

—

1967 (TDE)Reference

1951

—

2915 (TDE)Reference

1952

—

4120 (TDE)Reference

1953

—

50075 (TDE)Reference

1954

—

6049 (TDE)Reference

1955

—

601 (241 TC)Reference

1956

—

826 (241 TC)Reference

1957

—

1249 (241 TC)Reference

1958

—

1420 (241 TC)Reference

1959

—

1598 (241 TC)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.