Compare/Big Bud 400 vs Big Bud 400/20

Big Bud 400 vs Big Bud 400/20

Verdict: Big Bud 400 vs Big Bud 400/20

The Big Bud 400 and the Big Bud 400/20 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 400 hp. Big Bud 400/20 is the lighter machine (18,144 kg vs 19,822 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Big Bud 400 is the newer design (1986 vs 1979). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Big Bud

Fit score

Best match

Clear

Big Bud

Fit score

Best match

Clear

Rated power

400 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Big BudReference

liquid-cooledReference

Total built

3Reference

—

Drive

4x4 4WDReference

—

Steering

hydrostatic powerReference

—

Final drives

—

planetaryReference

Engine

298.3 kWReference

Displacement

14.6 LReference

12.1 LReference

Bore/Stroke

137 x 165 mmReference

123 x 127 mmReference

Power

298.3 kWReference

Rated RPM

2100Reference

Starter type

electricReference

—

Fuel tank

—

2081.8 LReference

Compression

—

19:1Reference

Starter

—

electricReference

Starter volts

—

24Reference

Transmission

Type

full power shiftReference

gearReference

Gears

12 forward and 2 reverseReference

Transmission

—

Fuller Roadranger RT 12513Reference

Dimensions

Weight

19822 kgReference

18144 kgReference

Wheelbase

—

381 cmReference

Front tire

—

24.5-32Reference

Rear tire

—

24.5-32Reference

Ag front

—

30.5-32Reference

Ag rear

—

30.5-32Reference

Length

—

679 cmReference

Width

—

304 cmReference

Height (cab)

—

367 cmReference

Height (exhaust)

—

396 cmReference

Shipping weight

—

18144 kgReference

Max weight

—

22680 kgReference

Ground clearance

—

36 cmReference

Electrical

Ground

negativeReference

Charging system

—

alternatorReference

Charging amps

—

75Reference

Battery volts

—

12Reference

Variants

400/20

—

gear shiftReference

400/30

—

power shiftReference

PTO & Hydraulics

Valves

—

4Reference

Pump flow

—

136.3 lpmReference

Steering flow

—

132.5 lpmReference

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.