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M-R-S A-90

M-R-S A-90 tractor
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The M-R-S A-90 is a four-wheel drive (4WD) tractor produced by M-R-S in Flora, Mississippi, USA from 1962 to 1963. It features a Cummins 6.6L 6-cylinder liquid-cooled diesel engine producing 123 hp (91.7 kW) with a 10-speed transmission (10 forward and 2 reverse gears). The tractor has a wheelbase of 100 inches (254 cm), weighs 24000 lbs (10886 kg), and uses 18.4x26 tires on both front and rear. It includes power four-wheel steering and an open operator station.
M-R-S A-90M-R-S tractor4WD tractorCummins enginefarm tractor specifications1962 tractor1963 tractor
Power123 hp
Founded1962 - 1963
ModelA-90

Technical Specifications

Detailed specifications and technical data for M-R-S A-90

Power

Engine:123 hp (91.7 kW)
Drawbar (claimed):90 hp (67.1 kW)

Tires

Rear tire:18.4x26
Front tire:18.4x26

Engine

Type:diesel
Model:Cummins JN-130-CI
Power:123 hp (91.7 kW)
Cooling:liquid-cooled
Cylinders:6-cylinder
Rated RPM:2200
Bore/Stroke:4.125x5.00 inches (105 x 127 mm)
Displacement:401 ci (6.6 L)
Starter type:electric

Dimensions

Height:114 inches (289 cm)
Weight:24000 lbs (10886 kg)
Wheelbase:100 inches (254 cm)
Rear tread:75 inches (190 cm)
Front tread:75 inches (190 cm)
Ground clearance:16 inches (40 cm)

Mechanical

Drive:4x4 4WD
Operator station:Open operator station
Power four-wheel steering:Yes

Production

Type:Four-wheel Drive (4WD) tractor
Built in:Flora, Mississippi, USA
Manufacturer:M-R-S
Years produced:1962 - 1963

Transmission

Gears:10 forward and 2 reverse