Compare/Allis Chalmers 190XT vs Allis Chalmers D21 Series I

Allis Chalmers 190XT vs Allis Chalmers D21 Series I

Verdict: Allis Chalmers 190XT vs Allis Chalmers D21 Series I

The Allis Chalmers 190XT and the Allis Chalmers D21 Series I are both tractors — here is how they stack up on the figures that matter. Allis Chalmers D21 Series I leads on rated power with 103 hp against 94 hp. Allis Chalmers D21 Series I is the lighter machine (4,309 kg vs 7,675 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 190XT is the newer design (1964 vs 1963). In short: choose the Allis Chalmers D21 Series I for outright pulling power, or the Allis Chalmers 190XT 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

Allis Chalmers

Fit score

Best match

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

94 hp

103 hp

Confidence

40%

Guide price

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Overview

Manufacturer

Allis ChalmersReference

With 15.5-38 rear tires.Reference

With 18.4x34 rear tires.Reference

Total built

22419Reference

1,129Reference

Original price

$8,672Reference

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Engine

Drawbar (tested)

59.0 kWReference

69.4 kWReference

Displacement

4.9 LReference

7.0 LReference

Bore/Stroke

98 x 108 mmReference

108 x 127 mmReference

Air cleaner

dryReference

Compression

9:1Reference

16.0:1Reference

Rated RPM

2200Reference

Firing order

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

Starter

electricReference

—

Starter volts

12Reference

—

Coolant capacity

17.0 LReference

19.9 LReference

Sparkplug gap

0.508 mmReference

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Point gap

0.406 mmReference

—

Intake valve clearance

0.381 mmReference

Exhaust valve clearance

0.381 mmReference

Oil capacity

36.0 LReference

87.1 LReference

Power at rated engine speed

66.8 kWReference

76.9 kWReference

Max power

57.2 kWReference

69.4 kWReference

Fuel tank

—

196.8 LReference

Engine

—

88.7 kWReference

Drawbar (claimed)

—

69.4 kWReference

Plows

—

7Reference

Power

—

88.7 kWReference

Transmission

Power DirectorReference

Gears

8 forward and 2 reverseReference

Clutch

dry discReference

PTO & Hydraulics

PTO (tested)

69.8 kWReference

76.9 kWReference

Hydraulic system

34.1 LReference

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Type

two-speed power shiftReference

sliding gearReference

Capacity

34.1 LReference

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Pressure

137.9 barReference

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Pump flow

45.4 lpmReference

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Steering flow

45.4 lpmReference

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Steering press.

103.4 barReference

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Rear Type

IIReference

III/IIReference

Rear PTO

independentReference

Rear PTO Type

1000 (1.375)Reference

1000Reference

Engine RPM

1000@2136Reference

—

Power at rated PTO speed

61.4 kWReference

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PTO (claimed)

—

76.8 kWReference

Capacities

Fuel

196.8 LReference

—

Diameter

22 cmReference

—

Width

222 cmReference

232 cmReference

RPM

1845Reference

—

Speed

1324.97 meters/minReference

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Dimensions

Wheelbase

266 cmReference

244 cmReference

Weight

7675 to 7945 poundsReference

4309 kgReference

Front tire

7.50-16Reference

7.50x20Reference

Rear tire

16.4-34Reference

18.4x34Reference

Ag front

9.00-10 (single)Reference

11.00x16Reference

Ag rear

15.5-38Reference

24.5x32Reference

Length

400 cmReference

407 cmReference

Clearance (front axle)

55 cmReference

54 cmReference

Clearance (rear axle)

65 cmReference

67 cmReference

Rear axle

82 mmReference

—

Front tread

152 to 213 cmReference

—

Rear tread

152 to 223 cmReference

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Operating

3603 kgReference

—

Ballasted

5125 kgReference

—

Steering wheel

208 cmReference

229 cmReference

Shipping weight

—

4309 kgReference

Ballasted weight

—

5307 kgReference

190XT Serial Number Location

190XT Serial Numbers

1964

1001Reference

1417 (Series I)Reference

1965

2485Reference

2130 (Series II)Reference

1966

8219Reference

2408 (Series II)Reference

1967

19001 (Series II)Reference

2863 (Series II)Reference

1968

23001 (Series III)Reference

3777 (Series II)Reference

1969

23234Reference

4498 (Series II)Reference

1970

25901Reference

—

1971

29136Reference

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Electrical

Ground

negativeReference

Charging system

generatorReference

Delco-Remy generatorReference

Batteries

2 (diesel)Reference

4Reference

Battery volts

12 (gas/opt)Reference

12Reference

Battery AH

190 (diesel optional)Reference

95Reference

Charging amps

—

32Reference

Allis Chalmers 190XT Height

Hood

160 cmReference

182 cmReference

Exhaust

270 cmReference

Test results

Fuel use

32.2 l/hourReference

26.9 l/hourReference

Max pull

4172 kgReference

6731 kgReference

Speeds

D21 Serial Numbers

1963

—

100 (Series I)Reference

Location:

—

Serial number on the left side of the Allis-Chalmers D21, stamped into the flange near the starter mounting.Reference

Final

—

4609 (Series II)Reference

Allis Chalmers D21 Height

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.