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Tractor · 1967Unverified

M-R-S A-80B

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

M-R-S A-80B — Four-wheel Drive (4WD) tractor · 141 hp. Reference specifications; pending source verification.

The M-R-S A-80B is a tractor with a rated output of approximately 141 horsepower, positioning it within the higher power range of its class. It was manufactured from 1967 to 1980. The tractor features a 4-cylinder diesel liquid-cooled engine and a four-wheel drive system with a 20-speed gearbox. Its listed operating weight is 7711 kg, and it is suitable for operations spanning 200–800 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

141 hp

Catalogue coverage

Variants represented

Richest spec table

42 rows

Recorded power

141 hp

Recorded weight

7711 kg

Transmissions

20-speed

Production years

1967-1980

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerM-R-SReference

Four-wheel Drive (4WD) tractorReference

Built in Flora, Mississippi, USAReference

Drive4x4 4WDReference

Power four-wheel steeringReference

Open operator station. Cab optional with available air-conditioning..Reference

Engine

Detroit Diesel 4.6L 4-cyl dieselReference

Engine105.1 kWReference

Drawbar (claimed)91.7 kWReference

Detroit Diesel 4-71Reference

dieselReference

4-cylinderReference

liquid-cooledReference

Displacement4.6 LReference

Bore/Stroke108 x 127 mmReference

Power105.1 kWReference

Rated RPM2100Reference

Torque496.3 NmReference

Torque RPM1600Reference

Starter typeelectricReference

Oil capacity14.2 LReference

Coolant capacity39.7 LReference

Transmission

20-speedReference

Gears20 forward and 4 reverseReference

Clutch381mm dry discReference

PTO & Hydraulics

Pump flow75.7 lpmReference

Dimensions

Wheelbase299 cmReference

Front tire18.4-26Reference

Rear tire18.4-26Reference

Ag front18.4-26Reference

Ag rear18.4-26Reference

Ag front18.00-26Reference

Ag front23.1-26Reference

Ag rear18.00-26Reference

Ag rear23.1-26Reference

Length495 cmReference

Width281 cmReference

Height297 cmReference

Max weight7711 kgReference

Ground clearance35 cmReference

Front tread203 cmReference

Rear tread203 cmReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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