M-R-S A-85
Power
202 hp
Production
1977-1980
Engine
Detroit Diesel 6V-53N, 6-cylinder
Weight
17300 lbs [7847 kg]
Drive
4WD
Introduction
M-R-S A-85 Four-Wheel Drive Tractor
The M-R-S A-85 is a heavy-duty four-wheel drive tractor produced between 1977 and 1980 in Flora, Mississippi, USA. Designed for demanding agricultural applications, this machine combines high-output power with a robust chassis configuration.
Engine and Performance
The tractor is powered by a Detroit Diesel 6V-53N engine. This 6-cylinder, liquid-cooled diesel unit features a displacement of 5.2 liters (318.4 cubic inches) and operates at a rated speed of 2500 RPM. It delivers 202 horsepower (150.6 kW) at the engine, with a claimed drawbar power of 164 horsepower (122.3 kW), providing substantial pulling capacity for heavy implements.
Transmission and Handling
The powertrain is managed by a transmission offering 20 forward and 4 reverse gears, allowing for precise speed selection across a wide range of field operations. The A-85 utilizes a 4x4 drive system complemented by power four-wheel steering, which enhances maneuverability despite the tractor's significant size.
Dimensions and Hydraulics
The machine has an operating weight of 17,300 lbs (7,847 kg) and a wheelbase of 118 inches (299 cm), which contributes to its stability during operation. It stands 132 inches (335 cm) high at the cab and offers a ground clearance of 14 inches (35 cm). Hydraulic requirements are met by a pump flow rate of 20 gpm (75.7 lpm), ensuring consistent responsiveness for connected hydraulic equipment.
Conclusion
The M-R-S A-85 is engineered for high-intensity agricultural tasks, offering a balanced combination of engine power, gear selection, and structural stability. Its 4WD configuration and four-wheel steering make it a capable tool for operators requiring significant traction and control in challenging field conditions.
Production Information of M-R-S, A-85
- Four-wheel Drive (4WD) tractor
- Built in Flora, Mississippi, USA
| Manufacturer | M-R-S |
|---|
Dimension and Tires Information of M-R-S, A-85
| Front tread | 80 inches [203 cm] |
|---|---|
| Wheelbase | 118 inches [299 cm] |
| Weight | 17300 lbs [7847 kg] |
| Height (cab) | 132 inches [335 cm] |
| Length | 195 inches [495 cm] |
| Rear tread | 80 inches [203 cm] |
| Ground clearance | 14 inches [35 cm] |
| Width | 111 inches [281 cm] |
| Ag front | 23.1x26 |
|---|---|
| Ag rear | 23.1x26 |
Engine Specifications of M-R-S, A-85
- Detroit Diesel 6V-53N
- Liquid-cooled
- Diesel
- 6-cylinder
| Power | 202 hp [150.6 kW] |
|---|---|
| Displacement | 318.4 ci [5.2 L] |
| Rated RPM | 2500 |
| Bore/Stroke | 3.875x4.50 inches [98 x 114 mm] |
| Starter type | Electric |
Transmission Information of M-R-S, A-85
Transmission variants 1
| Gears | 20 forward and 4 reverse |
|---|
Mechanical Specs of M-R-S, A-85
- Power four-wheel steering
| Drive | 4x4 4WD |
|---|
Power Information of M-R-S, A-85
| Engine | 202 hp [150.6 kW] |
|---|---|
| Drawbar (claimed) | 164 hp [122.3 kW] |
Hydraulics Specifications of M-R-S, A-85
| Pump flow | 20 gpm [75.7 lpm] |
|---|
Where it sits
With 202 HP, the M-R-S A-85 sits between A-95 (186 HP) and A-92 (238 HP) in M-R-S's range. Its power puts it in the 89th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the M-R-S A-85 have?
The M-R-S A-85 delivers 202 HP.
What years was the M-R-S A-85 produced?
The M-R-S A-85 was produced in 1977-1980.
What engine does the M-R-S A-85 have?
The M-R-S A-85 is powered by a Detroit Diesel 6V-53N, 6-cylinder engine.
How much does the M-R-S A-85 weigh?
The M-R-S A-85 weighs 17300 lbs [7847 kg].
Is the M-R-S A-85 4WD?
The M-R-S A-85 is available in 4WD.