Overview
The Renault 781S is a farm tractor produced between 1980 and 1985, powered by a 4.2L 4-cylinder MWM diesel engine. It features a 12-speed transmission with 12 forward and reverse gears, rated for 78 horsepower at 2350 RPM.
Ideal Applications
Engine and Power Rating:
The MWM D226-4 diesel engine delivers 199.2 lb-ft of torque at 1500 RPM and is equipped with a 20.3-gallon fuel tank.
Transmission and Drive Configuration:
This model utilizes a 2WD drive system with hydrostatic power steering, dry disc brakes, and a 12-speed gear layout.
Hitch and Hydraulic Specifications:
The rear lift capacity is documented at 9,923 lbs, supported by a hydraulic system with a total flow of 8.7 gpm.
Production
| Manufacturer | Renault |
|---|
Engine
| Engine type | MWM 4.2L 4-cyl diesel |
|---|---|
| Fuel tank | 20.3 gal (76.8 L) |
| Bore/Stroke | 4.134x4.724 inches (105 x 120 mm) |
| Description | MWM D226-4 / diesel / 4-cylinder |
| Displacement | 253.5 ci (4.2 L) |
| Power | 78 hp (58.2 kW) |
| Rated RPM | 2350 |
| Torque | 199.2 lb-ft (270.1 Nm) |
| Torque RPM | 1500 |
Transmission
| Gears | 12 forward and reverse |
|---|---|
| Transmission type | 12-speed |
Mechanical
| Description | Dry disc brakes / standard |
|---|---|
| Drive | 4x2 2WD |
| Steering | hydrostatic power |
Hydraulics
| Total flow | 8.7 gpm (32.9 lpm) |
|---|
Hitch
| Rear lift | 9,923 lbs (4501 kg) |
|---|
PTO
| Rear PTO Type | 540/1000 |
|---|
Dimensions & Tires
| Height | 103.9 inches (263 cm) |
|---|---|
| Length | 162.2 inches (411 cm) |
| Weight | 7,056 lbs (2WD) (3200 kg) |
| Wheelbase | 95.3 inches (242 cm) |
| Front tire | 7.50-18 |
| Rear tire | 16.9-34 |
| Weight | 7056 to 8743 pounds |
| Wheelbase | 95.3 inches (242 cm) |
| Ag front | 7.50-18 / 13.6-24 |
| Ag rear | 16.9-34 / 16.9-34 |