Allis Chalmers 4W-220
Power
220 hp
Production
1982-1984
Engine
Turbocharged intercooled diesel, 6-cylinder
Transmission
Power Director
Weight
21475 lbs [9741 kg]
Drive
4WD
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Introduction
Allis Chalmers 4W-220 Four-Wheel Drive Tractor
The Allis Chalmers 4W-220 is a heavy-duty four-wheel drive tractor manufactured between 1982 and 1984. Designed for large-scale agricultural operations, this model integrates substantial mechanical power with advanced hydraulic capabilities to handle demanding field tasks.
Engine and Performance
The tractor is powered by an Allis Chalmers 670 HI engine, a 7.0-liter turbocharged and intercooled 6-cylinder diesel unit. It produces 220 horsepower at a rated speed of 2400 RPM. The engine features a liquid cooling system and a dry-type air cleaner. With a compression ratio of 15.5:1, it is engineered for consistent performance under high-load conditions.
Transmission and Drivetrain
The 4W-220 utilizes a Power Director transmission system, offering 20 forward and 4 reverse gears. This configuration includes a two-speed power shift, allowing operators to adjust speeds without manual clutching. Power is delivered to all four wheels via planetary final drives, supported by wet disc brakes to ensure reliable deceleration.
Hydraulics and PTO
The hydraulic system is of a closed-center load-sensing design, providing a total flow capacity of 74.9 gpm (283.5 lpm), with 21 gpm (79.5 lpm) dedicated to the selective control valves (SCV). It is equipped with three valves as standard. The independent rear PTO operates at 1000 RPM, utilizing a 1.75-inch shaft to drive various high-power implements.
Dimensions and Operator Environment
The machine features a 126-inch wheelbase and a shipping weight of 21,475 lbs. The operator environment consists of a standard cab equipped with air-conditioning to maintain comfort during extended operation. The rear hitch is compatible with Category IV/III implements, providing flexibility for heavy-duty trailing equipment.
Conclusion
The Allis Chalmers 4W-220 is a robust tractor suited for intensive primary tillage and heavy pulling operations. Its combination of a high-capacity hydraulic system and a multi-speed transmission makes it a reliable choice for large acreage farming requirements from the early 1980s.
Production Information of Allis Chalmers, 4W-220
- Four-wheel Drive (4WD) tractor
| Manufacturer | Allis Chalmers |
|---|---|
| Original price | $74,490 |
Dimension and Tires Information of Allis Chalmers, 4W-220
| Rear axle | 119.5 inch length [3035 mm] |
|---|---|
| Wheelbase | 126 inches [320 cm] |
| Shipping weight | 21475 lbs [9741 kg] |
| Height (cab) | 129.4 inches [328 cm] |
| Length | 129.4 inches [328 cm] |
| Front axle | 95.5 inch length [2425 mm] |
| Clearance (front axle) | 25.8 inches [65 cm] |
| Height (hood) | 86.6 inches [219 cm] |
| Rear axle | 95.5 inch length [2425 mm] |
| Front axle | 119.5 inch length [3035 mm] |
| Clearance (rear axle) | 29.9 inches [75 cm] |
| Ag rear | 23.1x30 |
|---|---|
| Ag front | 18.4x38 |
| Ag front(optional) | 30.5x32 |
| Ag front(optional) | 24.5x32 |
| Ag rear | 18.4x38 |
| Ag rear(optional) | 24.5x32 |
| Ag rear(optional) | 20.8x38 |
| Ag front | 23.1x30 |
| Ag front(optional) | 20.8x38 |
| Ag front(optional) | 30.5x32 |
Engine Specifications of Allis Chalmers, 4W-220
- Allis Chalmers 670 HI
- Liquid-cooled inline
- 6-cylinder
- Turbocharged intercooled diesel
| Air cleaner | Dry |
|---|---|
| Idle RPM | 800-2630 |
| Displacement | 426 ci [7.0 L] |
| Bore/Stroke | 4.25x5.00 inches [108 x 127 mm] |
| Power | 220 hp [164.1 kW] |
| Rated RPM | 2400 |
| Compression | 15.5:1 |
| Coolant capacity | 41 qts [38.8 L] |
| Oil capacity | 21 qts [19.9 L] |
| Starter volts | 12 |
Transmission Information of Allis Chalmers, 4W-220
Transmission variants 1
| Transmission | Power Director |
|---|---|
| Type | Two-speed power shift |
| Gears | 20 forward and 4 reverse |
Mechanical Specs of Allis Chalmers, 4W-220
- Four-wheel drive
- Cab standard with air-conditioning.
- Wet disc brakes
| Final drives | Planetary |
|---|
Power Information of Allis Chalmers, 4W-220
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 (1.75) |
Hydraulics Specifications of Allis Chalmers, 4W-220
| Type | Closed center load-sensing |
|---|---|
| Total flow | 74.9 gpm [283.5 lpm] |
| Valves | 3 |
| SCV flow | 21 gpm [79.5 lpm] |
Three-Point Hitch of Allis Chalmers, 4W-220
| Rear Type(optional) | IV/III |
|---|
Electrical System of Allis Chalmers, 4W-220
| Ground | Negative |
|---|---|
| Charging system | Alternator |
| Battery volts | 12 |
Where it sits
With 220 HP, the Allis Chalmers 4W-220 sits between 7580 (206 HP) and 4W-305 (305 HP) in Allis Chalmers's range. Its power puts it in the 90th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the Allis Chalmers 4W-220 have?
The Allis Chalmers 4W-220 delivers 220 HP.
What years was the Allis Chalmers 4W-220 produced?
The Allis Chalmers 4W-220 was produced in 1982-1984.
What engine does the Allis Chalmers 4W-220 have?
The Allis Chalmers 4W-220 is powered by a Turbocharged intercooled diesel, 6-cylinder engine.
What transmission does the Allis Chalmers 4W-220 use?
The Allis Chalmers 4W-220 uses a Power Director transmission.
How much does the Allis Chalmers 4W-220 weigh?
The Allis Chalmers 4W-220 weighs 21475 lbs [9741 kg].
Is the Allis Chalmers 4W-220 4WD?
The Allis Chalmers 4W-220 is available in 4WD.