Compare/Allis Chalmers 7030 vs Allis Chalmers D21 Series II

Allis Chalmers 7030 vs Allis Chalmers D21 Series II

Verdict: Allis Chalmers 7030 vs Allis Chalmers D21 Series II

The Allis Chalmers 7030 and the Allis Chalmers D21 Series II are both tractors — here is how they stack up on the figures that matter. Allis Chalmers 7030 leads on rated power with 131 hp against 128 hp. Allis Chalmers D21 Series II is the lighter machine (4,309 kg vs 5,638 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 7030 is the newer design (1973 vs 1963). In short: choose the Allis Chalmers 7030 for outright pulling power, or the Allis Chalmers D21 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

Allis Chalmers

Fit score

Best match

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

131 hp

128 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

With 18.4x38 rear tires.Reference

With 18.4x34 rear tires.Reference

Total built

3,396Reference

2,409Reference

Original price

$17,035Reference

—

Final drives

planetaryReference

—

Differential lock

hydraulic rearReference

—

Engine

Drawbar (claimed)

82.0 kWReference

—

Drawbar (tested)

82.2 kWReference

86.8 kWReference

Displacement

7.0 LReference

Bore/Stroke

108 x 127 mmReference

Air cleaner

dryReference

—

Compression

16:1Reference

16.0:1Reference

Rated RPM

2300Reference

2200Reference

Starter volts

12Reference

—

Power at rated engine speed

97.7 kWReference

95.3 kWReference

Max power

82.2 kWReference

86.8 kWReference

Fuel tank

—

196.8 LReference

Plows

—

7Reference

Firing order

—

1-5-3-6-2-4Reference

Oil capacity

—

87.1 LReference

Coolant capacity

—

29.3 LReference

Intake valve clearance

—

0.381 mmReference

Exhaust valve clearance

—

0.381 mmReference

Transmission

Allis-Chalmers Power Director XXReference

Power DirectorReference

Gears

20 forward and 4 reverseReference

8 forward and 2 reverseReference

Clutch

—

dry discReference

PTO & Hydraulics

PTO (claimed)

97.7 kWReference

90.2 kWReference

PTO (tested)

97.7 kWReference

95.3 kWReference

Type

partial power shiftReference

sliding gearReference

Pump flow

51.1 lpmReference

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Total flow

170.3 lpmReference

—

Steering flow

36.0 lpmReference

—

Rear Type

III/IIReference

Rear PTO

independentReference

Rear PTO Type

540/1000 (1.375)Reference

1000Reference

Power at rated PTO speed

97.8 kWReference

—

Dimensions

Wheelbase

269 cmReference

244 cmReference

Weight

5638 kgReference

4309 kgReference

Front tire

11.00-16Reference

7.50x20Reference

Rear tire

20.8-38Reference

18.4x34Reference

Ag front

11.00-16Reference

11.00x16Reference

Ag rear

20.8-38Reference

24.5x32Reference

Length

414 cmReference

407 cmReference

Width

242 cmReference

232 cmReference

Height

294 cmReference

—

Operating weight

5638 kgReference

—

Ballasted weight

7511 kgReference

5307 kgReference

Bar rear axle

91 mmReference

—

Shipping weight

—

4309 kgReference

Clearance (front axle)

—

54 cmReference

Clearance (rear axle)

—

67 cmReference

Rear axle

—

82 mmReference

Steering wheel

—

229 cmReference

Allis Chalmers 7030 attachments

7030 Serial Numbers

1973

1001Reference

—

1974

2595Reference

—

Location:

Above PTO shieldReference

—

Final

4398Reference

4609 (Series II)Reference

Test results

Fuel use

32.2 l/hourReference

29.9 l/hourReference

Max pull

5719 kgReference

6922 kgReference

Speeds

D21 Serial Number Location

D21 Serial Numbers

1963

—

100 (Series I)Reference

1964

—

1417 (Series I)Reference

1965

—

2130 (Series II)Reference

1966

—

2408 (Series II)Reference

1967

—

2863 (Series II)Reference

1968

—

3777 (Series II)Reference

1969

—

4498 (Series II)Reference

Electrical

Ground

—

negativeReference

Charging system

—

Delco-Remy generatorReference

Charging amps

—

32Reference

Batteries

—

4Reference

Battery volts

—

12Reference

Battery AH

—

95Reference

Allis Chalmers D21 Height

Hood

—

182 cmReference

Exhaust

—

270 cmReference

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.