Allis Chalmers 8550

Name: Allis Chalmers 8550
Brand: Allis Chalmers

Power

300 hp

Production

1978-1981

Engine

Turbocharged diesel, 6-cylinder 24-valve

Transmission

Power Director

Drive

4WD

Over 200 HP 1970s 1980s

From the same series:

Introduction

Allis Chalmers 8550: The 300 HP Powerhouse You Need

Unleash unparalleled productivity with the Allis Chalmers 8550, a 4WD titan engineered for the most demanding agricultural tasks. From 1978 to 1981, this machine set benchmarks in power and performance, making it a legendary choice for serious farmers.

Engine Powerhouse

At its heart, the 8550 boasts the formidable Allis Chalmers 6120T engine. This 12.0 L, 6-cylinder, 24-valve turbocharged diesel powerhouse delivers a staggering 300 hp at 2500 RPM, ensuring you have the grunt to tackle any job, no matter how tough. With a compression ratio of 16.25:1 and liquid cooling, this engine is built for endurance and efficiency.

Transmission and Control

Experience seamless power delivery with the Power Director transmission, offering a robust 20 forward and 4 reverse gears through a partial power shift system. Coupled with hydrostatic power steering, the 8550 provides exceptional maneuverability and precise control, even in tight spaces or challenging conditions.

Hydraulics and Hydraulics

Equipped with a closed-center hydraulic system and a powerful pump flow of 74.9 GPM, the 8550 is ready to handle any implement. With 3 or 4 valves available, you have the flexibility to connect and operate a wide array of modern agricultural machinery with ease and efficiency.

Operator Comfort

Step into the Acousta Cab II, the standard for operator comfort during long working days. Featuring both heating and air conditioning, this cab ensures a pleasant environment regardless of the weather. An optional radio and 8-track tape deck were also available, adding a touch of entertainment to your operations.

Durability and Braking

Built to last, the 8550 features hydraulic wet disc brakes, providing reliable and powerful stopping capability. The four-wheel drive system ensures maximum traction and stability, allowing you to operate with confidence in any field condition.

Conclusion

"The Allis Chalmers 8550 is more than just a tractor; it's a statement of power, reliability, and endurance. If you're looking for a machine that can handle the heavy lifting and keep going season after season, the 8550 is an exceptional choice that continues to prove its worth in the field."

Introduction

Production Information of Allis Chalmers, 8550

The production information of the tractor (8550) includes details about its manufacturing.

Four-wheel Drive (4WD) tractor


Manufacturer	Allis Chalmers
Original price	$86,753

Dimension and Tires Information of Allis Chalmers, 8550

This section sums up the dimension and tires information of the tractor.


Rear tread	62 to 123 inches [157 to 312 cm]
Wheelbase	126 inches [320 cm]
Ground clearance	17 inches [43 cm]
	119.5 inches (long axle) [303 cm]
Length	285 inches [723 cm]
Front tread	62 to 123 inches [157 to 312 cm]
Width	95.5 inches [242 cm]


	24.5x32
Ag front	18.4x38
	23.1x30
	20.8x38
Ag rear	18.4x38
Ag rear	20.8x34
	24.5x32
Ag front	20.8x34
	30.5x32
	23.1x30
	20.8x38
	30.5x32

Engine Specifications of Allis Chalmers, 8550

Get the specifications for the engine and if different options are available.

Allis Chalmers 6120T

Liquid-cooled inline

Turbocharged diesel

6-cylinder 24-valve


Coolant capacity	72 qts [68.1 L]
	60 qts (3 filter) [56.8 L]
Air cleaner	Dry
Intake valve clearance	0.015 inches (hot) [0.381 mm]
Rated RPM	2500
Idle RPM	775-2800
Compression	16.25:1
Displacement	731 ci [12.0 L]
Power	300 hp [223.7 kW]
Bore/Stroke	5.25x6.25 inches [133 x 159 mm]
Oil capacity	46 qts (2 filter) [43.5 L]
Exhaust valve clearance	0.020 inches (hot) [0.508 mm]
Starter volts	12
Firing order	1-5-3-6-2-4

Transmission Information of Allis Chalmers, 8550Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Transmission	Power Director
Type	Partial power shift
Gears	20 forward and 4 reverse

Mechanical Specs of Allis Chalmers, 8550Y

This section summarizes all mechanical information such as the brake system and other specifications.

Four-wheel drive

Acousta Cab II standard with heat and air-conditioning. Optional radio and 8 track tape deck.

Hydraulic wet discs brakes


Steering	Hydrostatic power

Power Information of Allis Chalmers, 8550Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent
Rear PTO Type	1000

Hydraulics Specifications of Allis Chalmers, 8550

Hydraulic system type, pressure, pump flow and valves.


Type	Closed center
Valves	3 or 4
Pump flow	74.9 gpm [283.5 lpm]

Three-Point Hitch of Allis Chalmers, 8550

Hitch category and rear/front lift capacity.


Rear Type	IV/III

Electrical System of Allis Chalmers, 8550

Battery voltage, charging system and ground.


Ground	Negative
Battery volts	12
Charging system	Alternator
Batteries	4

Frequently asked questions

How much horsepower does the Allis Chalmers 8550 have?

The Allis Chalmers 8550 delivers 300 HP.

What years was the Allis Chalmers 8550 produced?

The Allis Chalmers 8550 was produced in 1978-1981.

What engine does the Allis Chalmers 8550 have?

The Allis Chalmers 8550 is powered by a Turbocharged diesel, 6-cylinder 24-valve engine.

What transmission does the Allis Chalmers 8550 use?

The Allis Chalmers 8550 uses a Power Director transmission.

Is the Allis Chalmers 8550 4WD?

The Allis Chalmers 8550 is available in 4WD.

More Allis Chalmers models

4W-305305 HP · 1982 - 1985 HD21225 HP · 1954 - 1965 4W-220220 HP · 1982 - 1984 440218 HP · 1973 - 1977 7080210 HP · 1975 - 1981 7580206 HP · 1976 - 1981 7060192 HP · 1974 - 1981 8070189 HP · 1982 - 1985

View all 94 Allis Chalmers models →

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