Compare/Caterpillar D7D vs Caterpillar D8

Caterpillar D7D vs Caterpillar D8

Verdict: Caterpillar D7D vs Caterpillar D8

The Caterpillar D7D and the Caterpillar D8 are both tractors — here is how they stack up on the figures that matter. Caterpillar D8 leads on rated power with 115 hp against 110 hp. Caterpillar D7D is the lighter machine (11,036 kg vs 16,565 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Caterpillar D7D holds more fuel (246.0 L vs 215.7 L) for longer stints between fills. Caterpillar D7D is the newer design (1959 vs 1937). In short: choose the Caterpillar D8 for outright pulling power, or the Caterpillar D7D 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

Caterpillar

Fit score

Best match

Clear

Caterpillar

Fit score

Best match

Clear

Rated power

110 hp

115 hp

Confidence

40%

Guide price

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Overview

Manufacturer

CaterpillarReference

Gear 1 used for pull test.Reference

Diesel 6-speed crawlerOctober 11 - 16, 1940Link: Nebraska Tractor Test 357 fileReference

Drive

crawlerReference

Steering

manual clutchesReference

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Engine

Fuel tank

246.0 LReference

215.7 LReference

Drawbar (tested)

81.9 kWReference

82.1 kWReference

Displacement

13.6 LReference

20.4 LReference

Bore/Stroke

146 x 203 mmReference

Air cleaner

oil bathReference

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Compression

15.7:1Reference

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Rated RPM

1200Reference

850Reference

Starter type

2-cylinder pony engineReference

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Max power

81.9 kWReference

82.1 kWReference

Engine

—

85.8 kWReference

Belt (tested)

—

95.4 kWReference

Power

—

85.8 kWReference

Belt power (max)

—

95.4 kWReference

Transmission

Type

gearReference

Gears

5 forward and 4 reverseReference

6 forward and 2 reverseReference

Clutch

dry metallic discReference

—

Oil capacity

37.9 LReference

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Dimensions

Weight

11036 kgReference

16565 kgReference

Length

412 cmReference

472 cmReference

Height (hood)

203 cmReference

—

Shipping weight

11036 kgReference

—

Ground clearance

39 cmReference

—

Clearance (drawbar)

43 cmReference

—

Gauge

187 cmReference

198 cmReference

Height

—

213 cmReference

Caterpillar D7D Tracks

Width

246 cmReference

256 cmReference

Test results

Fuel use

31.4 l/hourReference

—

Max pull

12825 kgReference

11887 kgReference

Belt fuel use (max)

—

32.6 l/hourReference

D8 Serial Numbers

1937

—

1H1500Reference

1938

—

1H2727Reference

1939

—

1H3906Reference

1940

—

1H5729Reference

1941

—

1H7693Reference

Caterpillar D8 Tracks

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.