M-R-S A-90
The M-R-S A-90 is a tractor produced by M R S. It is equipped with a 401 ci 6.6 L engine. The rated power output is 123 hp 91.7 kW. Transmission: 10 forward and 2 reverse. Drive type: 4x4 4WD. Operating weight: 24000 lbs 10886 kg.
Engine Power
123 hp
91.7 kW
Drive & Traction
4x4 4WD
Fuel & Capacities
Diesel
Transmission
10 forward and 2 reverse
Operating Weight
24000 lbs
10886 kg
M R S M-R-S A-90 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1962 - 1963
Four-wheel Drive (4WD) tractor |
|---|---|
1962 - 1963 | |
Four-wheel Drive (4WD) tractor | |
Production | |
|---|---|
Manufacturer | M-R-S |
Four-wheel Drive (4WD) tractor | |
Built in Flora, Mississippi, USA | |
M-R-S A-90 Engine | |
|---|---|
Cummins 6.6L 6-cyl diesel | |
Engine details ...  |
M-R-S A-90 Transmission | |
|---|---|
10-speed | |
Transmission details ...  |
M-R-S A-90 Power | |
|---|---|
Engine | 123 hp
91.7 kW |
Drawbar (claimed) | 90 hp
67.1 kW |
Mechanical | |
|---|---|
Drive | 4x4 4WD |
Power four-wheel steering | |
Open operator station. | |
Dimensions & Tires | |
|---|---|
Wheelbase | 100 inches
254 cm |
Weight | 24000 lbs
10886 kg |
Front tire | 18.4x26 |
Rear tire | 18.4x26 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 401 ci / 6.6 L Diesel
Manufacturer | Cummins JN-130-CI |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 401 ci
6.6 L |
Bore/Stroke | 4.125x5.00 inches
105 x 127 mm |
Power | 123 hp
91.7 kW |
Rated RPM | 2200 |
Starter type | electric |
Transmission
Transmission — 10 forward and 2 reverse
Gears | 10 forward and 2 reverse |
 | |
Dimensions
M-R-S A-90 Tires | |
|---|---|
Ag front | 18.4x26 |
Ag rear | 18.4x26 |
Dimensions | |
|---|---|
Wheelbase | 100 inches
254 cm |
Height | 114 inches
289 cm |
Weight | 24000 lbs
10886 kg |
Ground clearance | 16 inches
40 cm |
Front tread | 75 inches
190 cm |
Rear tread | 75 inches
190 cm |
M R S M-R-S A-90 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for M R S M-R-S A-90.
Converted Equivalents:
Horsepower (HP)123 hp
Kilowatts (kW)91.7 kW
Metric Horsepower (PS / CV)124.7 PS
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