Compare/Caterpillar D8R Series II vs Caterpillar D9G

Caterpillar D8R Series II vs Caterpillar D9G

Verdict: Caterpillar D8R Series II vs Caterpillar D9G

The Caterpillar D8R Series II and the Caterpillar D9G are both industrial tractors — here is how they stack up on the figures that matter. Caterpillar D9G leads on rated power with 385 hp against 338 hp. Caterpillar D9G is the lighter machine (29,211 kg vs 65,202 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Caterpillar D8R Series II is the newer design (1995 vs 1961). In short: choose the Caterpillar D9G for outright pulling power, or the Caterpillar D8R Series II 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

Caterpillar

Fit score

Best match

Clear

Caterpillar

Fit score

Best match

Clear

Rated power

338 hp

385 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

CaterpillarReference

liquid-cooled inlineReference

liquid-cooledReference

Drive

crawlerReference

Final drives

double reduction planetaryReference

planetaryReference

Engine

Engine (gross)

252.0 kWReference

—

Engine (net)

231.2 kWReference

287.1 kWReference

Displacement

14.6 LReference

24.1 LReference

Bore/Stroke

137 x 165 mmReference

159 x 203 mmReference

Power (net)

231.2 kWReference

287.1 kWReference

Power (gross)

252.0 kWReference

—

Rated RPM

2000Reference

1330Reference

Starter

electricReference

Starter volts

24Reference

Oil capacity

155.2 LReference

42.6 LReference

Coolant capacity

93.7 LReference

151.4 LReference

Transmission

Gears

3 forward and reverseReference

Capacities

Fuel

624.5 LReference

757.0 LReference

PTO & Hydraulics

Hydraulic system

71.9 LReference

54.9 LReference

Type

power shiftReference

Capacity

71.9 LReference

54.9 LReference

Pump flow

227.9 lpmReference

582.9 lpmReference

Steering flow

112.0 lpmReference

—

Dimensions

Weight

65202 to 83500 poundsReference

29211 kgReference

Length

454 cmReference

551 cmReference

8SU dozer length

640 cmReference

—

8A dozer length

657 cmReference

—

8U dozer length

678 cmReference

—

Width

330 cmReference

304 cmReference

Height (cab)

351 cmReference

—

Height (exhaust)

350 cmReference

—

Shipping weight

29575 kgReference

29211 kgReference

Operating weight

37875 kgReference

—

Gauge

233 cmReference

228 cmReference

Height

—

261 cmReference

Caterpillar D8R attachments

Electrical

Charging system

alternatorReference

Charging amps

100Reference

50Reference

Batteries

4Reference

—

Battery CCA

750Reference

—

Battery volts

12Reference

—

Caterpillar D8R Tracks

Suspended width

55 cmReference

—

Suspended length on ground

320 cmReference

—

Suspended area on ground

3.6 m²Reference

—

Suspended ground pressure

0.9 barReference

—

Non-suspended width

55 cmReference

—

Non-suspended length on ground

325 cmReference

—

Non-suspended area on ground

3.6 m²Reference

—

Non-suspended ground pressure

0.9 barReference

—

LGP width

96 cmReference

—

LGP length on ground

325 cmReference

—

LGP area on ground

6.3 m²Reference

—

LGP ground pressure

0.5 barReference

—

Variants

DD9G

—

dual D9G tractorsReference

Caterpillar D9G attachments

Caterpillar D9G Tracks

Length on ground

—

462 cmReference

Area on ground

—

4.1 m²Reference

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.