Compare/Allis Chalmers 4W-220 vs Allis Chalmers 8550

Allis Chalmers 4W-220 vs Allis Chalmers 8550

Verdict: Allis Chalmers 4W-220 vs Allis Chalmers 8550

The Allis Chalmers 4W-220 and the Allis Chalmers 8550 are both tractors — here is how they stack up on the figures that matter. Allis Chalmers 8550 leads on rated power with 254 hp against 180 hp. Allis Chalmers 4W-220 is the lighter machine (9,741 kg vs 26,400 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 4W-220 holds more fuel (757.0 L vs 643.5 L) for longer stints between fills. Allis Chalmers 4W-220 is the newer design (1982 vs 1978). In short: choose the Allis Chalmers 8550 for outright pulling power, or the Allis Chalmers 4W-220 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

Clear

Rated power

180 hp

254 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

With 20.8x38 tires.Reference

Allis 8550 speeds with 18.4x38 tires.Reference

Original price

$74,490Reference

$86,753Reference

Final drives

planetaryReference

—

Steering

—

hydrostatic powerReference

Engine

Fuel tank

757.0 LReference

643.5 LReference

Engine

164.1 kWReference

223.7 kWReference

Displacement

7.0 LReference

12.0 LReference

Bore/Stroke

108 x 127 mmReference

133 x 159 mmReference

Power

164.1 kWReference

223.7 kWReference

Air cleaner

dryReference

Compression

15.5:1Reference

16.25:1Reference

Rated RPM

2400Reference

2500Reference

Idle RPM

800-2630Reference

775-2800Reference

Starter volts

12Reference

Oil capacity

19.9 LReference

56.8 LReference

Coolant capacity

38.8 LReference

68.1 LReference

Drawbar (claimed)

—

156.6 kWReference

Drawbar (tested)

—

162.5 kWReference

Firing order

—

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

Intake valve clearance

—

0.381 mmReference

Exhaust valve clearance

—

0.508 mmReference

Power at rated engine speed

—

189.3 kWReference

Max power

—

162.5 kWReference

Transmission

Power DirectorReference

Gears

20 forward and 4 reverseReference

PTO & Hydraulics

PTO (claimed)

134.2 kWReference

186.4 kWReference

Type

two-speed power shiftReference

partial power shiftReference

Valves

3Reference

3 or 4Reference

SCV flow

79.5 lpmReference

—

Total flow

283.5 lpmReference

—

Rear Type

IV/IIIReference

Rear PTO

independentReference

Rear PTO Type

1000 (1.75)Reference

1000Reference

PTO (tested)

—

189.3 kWReference

Pump flow

—

283.5 lpmReference

Dimensions

Wheelbase

320 cmReference

Weight

9741 kgReference

26400 to 27040 poundsReference

Front tire

18.4x38Reference

Rear tire

18.4x38Reference

Ag front

20.8x38Reference

30.5x32Reference

Ag rear

20.8x38Reference

30.5x32Reference

Length

328 cmReference

723 cmReference

Height (hood)

219 cmReference

—

Height (cab)

328 cmReference

—

Shipping weight

9741 kgReference

—

Clearance (front axle)

65 cmReference

—

Clearance (rear axle)

75 cmReference

—

Front axle

3035 mmReference

—

Rear axle

3035 mmReference

—

Width

—

303 cmReference

Ground clearance

—

43 cmReference

Front tread

—

157 to 312 cmReference

Rear tread

—

157 to 312 cmReference

Shipping

—

11975 kgReference

Operating

—

12265 kgReference

Ballasted

—

13317 kgReference

4W-220 Serial Numbers

1982

1001Reference

—

1983

1081Reference

—

1984

1145Reference

—

Location:

Front frame, on rear left sideReference

Front frame, rear left sideReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Battery volts

12Reference

Batteries

—

4Reference

Speeds

8550 Serial Numbers

1978

—

1083Reference

1979

—

1342Reference

1980

—

1553Reference

1981

—

1723Reference

Allis Chalmers 8550 Height

Hood

—

229 cmReference

Cab

—

353 cmReference

Exhaust

—

391 cmReference

Test results

Fuel use

—

66.2 l/hourReference

Max pull

—

11893 kgReference

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.