The M-R-S A-80 is a tractor with a rated power output of 134 hp, positioning it at the high-powered end of its class. Manufactured from 1964 to 1967, this model features a 4-cylinder diesel liquid-cooled engine and a four-wheel drive system paired with a 10-speed gearbox. The tractor has a listed operating weight of 7166 kg and is suitable for operations covering an area of 200–800 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
134 hp
Weight
7166 kg
Catalogue coverage
Variants represented
2
Richest spec table
32 rows
Recorded power
134 hp
Recorded weight
7166 kg
Transmissions
10-speed
Production years
1964-1967
Verified variants
0
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Overview
ManufacturerM-R-SReference
Four-wheel Drive (4WD) tractorReference
Built in Flora, Mississippi, USAReference
Drive4x4 4WDReference
Power four-wheel steeringReference
Open operator station.Reference
Engine
Detroit Diesel 4.6L 4-cyl dieselReference
Engine99.9 kWReference
Drawbar (claimed)85.8 kWReference
Detroit Diesel 4-71Reference
dieselReference
4-cylinderReference
liquid-cooledReference
Displacement4.6 LReference
Bore/Stroke108 x 127 mmReference
Power99.9 kWReference
Rated RPM2000Reference
Starter typeelectricReference
Transmission
10-speedReference
Gears10 forward and 2 reverseReference
Dimensions
Wheelbase254 cmReference
Weight7166 kgReference
Front tire16.9x30Reference
Rear tire16.9x30Reference
Ag front16.9x30Reference
Ag rear16.9x30Reference
Length495 cmReference
Width281 cmReference
Height (cab)335 cmReference
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.
