M-R-S A-80B: all source data
All 43 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | M-R-S |
|---|
| (no label) | Four-wheel Drive (4WD) tractor |
|---|
| (no label) | Built in Flora, Mississippi, USA |
|---|
Engine| (no label) | Detroit Diesel 4.6L 4-cyl diesel |
|---|
Transmission| (no label) | 20-speed |
|---|
Power| Engine | 141 hp | 105.1 kW |
|---|
| Drawbar (claimed) | 123 hp | 91.7 kW |
|---|
Mechanical| Drive | 4x4 4WD |
|---|
| (no label) | Power four-wheel steering |
|---|
| (no label) | Open operator station. Cab optional with available air-conditioning.. |
|---|
Hydraulics| Pump flow | 20 gpm | 75.7 lpm |
|---|
Dimensions| Wheelbase | 118 inches | 299 cm |
|---|
| Front tire | 18.4-26 |
|---|
| Rear tire | 18.4-26 |
|---|
Engine
Engine detail| (no label) | Detroit Diesel 4-71 |
|---|
| (no label) | diesel |
|---|
| (no label) | 4-cylinder |
|---|
| (no label) | liquid-cooled |
|---|
| Displacement | 283.7 ci | 4.6 L |
|---|
| Bore/Stroke | 4.25x5.00 inches | 108 x 127 mm |
|---|
| Power | 141 hp | 105.1 kW |
|---|
| Rated RPM | 2100 |
|---|
| Torque | 366 lb-ft | 496.3 Nm |
|---|
| Torque RPM | 1600 |
|---|
| Starter type | electric |
|---|
| Oil capacity | 15 qts | 14.2 L |
|---|
| Coolant capacity (Coolant) | 42 qts | 39.7 L |
|---|
Transmission
Transmission| Gears | 20 forward and 4 reverse |
|---|
| Clutch | 381mm dry disc |
|---|
Dimensions
Tires| Ag front | 18.4-26 |
|---|
| Ag rear | 18.4-26 |
|---|
| Ag front | 18.00-26 |
|---|
| Ag front | 23.1-26 |
|---|
| Ag rear | 18.00-26 |
|---|
| Ag rear | 23.1-26 |
|---|
Dimensions| Wheelbase | 118 inches | 299 cm |
|---|
| Length | 195 inches | 495 cm |
|---|
| Width | 111 inches | 281 cm |
|---|
| Height | 117 inches | 297 cm |
|---|
| Max weight (Max) | 17000 lbs | 7711 kg |
|---|
| Ground clearance | 14 inches | 35 cm |
|---|
| Front tread | 80 inches | 203 cm |
|---|
| Rear tread | 80 inches | 203 cm |
|---|