M-R-S A-80

Name: M-R-S A-80
Brand: M-R-S

Power

134 hp

Production

1964-1967

Engine

Detroit Diesel 4-71, 4-cylinder

Weight

15800 lbs [7166 kg]

Drive

4WD

100–140 HP 1960s

Introduction

M-R-S A-80 Four-Wheel Drive Tractor

The M-R-S A-80 is a heavy-duty four-wheel drive tractor manufactured between 1964 and 1967 in Flora, Mississippi, USA. Designed for demanding agricultural and earthmoving applications, this machine is characterized by its significant weight and specialized steering system.

Engine and Performance

The tractor is powered by a liquid-cooled Detroit Diesel 4-71, a 4-cylinder diesel engine with a displacement of 283.7 cubic inches (4.6 liters). It produces 134 horsepower (99.9 kW) at a rated speed of 2000 RPM. The engine utilizes an electric starter system for reliable ignition.

Transmission and Drivetrain

The drivetrain features a 4x4 configuration, providing power to all four wheels for enhanced traction. The transmission system offers 10 forward speeds and 2 reverse speeds, allowing for a variety of operating ranges. The machine is equipped with power four-wheel steering, which improves maneuverability for a tractor of this size.

Dimensions and Chassis

With a wheelbase of 100 inches (254 cm) and a total weight of 15,800 lbs (7,166 kg), the A-80 is built for stability during heavy traction work. The tractor stands 132 inches (335 cm) high and measures 195 inches (495 cm) in length. It features a ground clearance of 14 inches (35 cm) and is fitted with 16.9x30 agricultural tires on both the front and rear axles. The operator station is of the open type.

Conclusion

"The M-R-S A-80 is designed for heavy-duty agricultural operations requiring high drawbar pull and all-wheel traction. Its robust mechanical design and specific four-wheel steering capabilities position it as a specialized machine for operators needing sustained power and stability in varied field conditions."

Introduction

Production Information of M-R-S, A-80

The production information of the tractor (A-80) includes details about its manufacturing.

Four-wheel Drive (4WD) tractor

Built in Flora, Mississippi, USA


Manufacturer	M-R-S

Dimension and Tires Information of M-R-S, A-80

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


Front tread	80 inches [203 cm]
Wheelbase	100 inches [254 cm]
Weight	15800 lbs [7166 kg]
Height (cab)	132 inches [335 cm]
Length	195 inches [495 cm]
Rear tread	80 inches [203 cm]
Ground clearance	14 inches [35 cm]
Width	111 inches [281 cm]


Ag front	16.9x30
Ag rear	16.9x30

Engine Specifications of M-R-S, A-80

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

Detroit Diesel 4-71

Liquid-cooled

Diesel

4-cylinder


Power	134 hp [99.9 kW]
Displacement	283.7 ci [4.6 L]
Rated RPM	2000
Bore/Stroke	4.25x5.00 inches [108 x 127 mm]
Starter type	Electric

Transmission Information of M-R-S, A-80Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Gears	10 forward and 2 reverse

Mechanical Specs of M-R-S, A-80Y

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

Power four-wheel steering

Open operator station.


Drive	4x4 4WD

Power Information of M-R-S, A-80Y

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


Engine	134 hp [99.9 kW]
Drawbar (claimed)	115 hp [85.8 kW]

Frequently asked questions

How much horsepower does the M-R-S A-80 have?

The M-R-S A-80 delivers 134 HP.

What years was the M-R-S A-80 produced?

The M-R-S A-80 was produced in 1964-1967.

What engine does the M-R-S A-80 have?

The M-R-S A-80 is powered by a Detroit Diesel 4-71, 4-cylinder engine.

How much does the M-R-S A-80 weigh?

The M-R-S A-80 weighs 15800 lbs [7166 kg].

Is the M-R-S A-80 4WD?

The M-R-S A-80 is available in 4WD.

More M-R-S models

A-80B141 HP · 1967 - 1980 A-90123 HP · 1962 - 1963 A-95186 HP · 1966 - 1980 A-85202 HP · 1977 - 1980 A-92238 HP · 1977 - 1980 A-110unknown HP · 1964 A-105unknown HP · 1964 - 1967 A-100unknown HP · 1962 - 1980

View all 10 M-R-S models →

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