Introduction
Renault 421M: Standard Agricultural Tractor
The Renault 421M is a two-wheel drive agricultural tractor produced between 1977 and 1985. Designed for general farming operations, this model is recognized for its mechanical simplicity and utility in small to medium-sized agricultural settings.
Engine and Performance
The tractor is powered by an MWM D325-3 diesel engine. This 3-cylinder unit features a 2.6-liter displacement with a bore and stroke of 95 mm by 120 mm. It produces a rated power output of 42 hp (31.3 kW) at 2150 RPM, with a maximum torque of 155.0 Nm achieved at 1500 RPM.
Transmission and Drivetrain
The 421M utilizes a mechanical transmission system offering 10 forward gears and 2 reverse gears. It is configured as a two-wheel drive machine and features mechanical steering paired with dry disc brakes to manage speed and directional control.
Hydraulics and Hitch
The hydraulic system provides a total flow rate of 6.6 gpm (25.0 lpm). The rear hitch is capable of lifting up to 4,410 lbs (2000 kg), allowing for the operation of various mounted implements. The rear power take-off (PTO) offers two speed settings, 540 and 750 RPM.
Dimensions and Weight
The machine has a wheelbase of 198 cm, with an overall length of 335 cm and a height of 234 cm. It weighs 2,225 kg. It is equipped with 6.00-16 front agricultural tires and 13.6-28 rear agricultural tires.
Conclusion
The Renault 421M is a robust, entry-level tractor suited for light to medium agricultural duties. Its straightforward mechanical design and MWM engine make it a reliable choice for farmers prioritizing ease of maintenance and consistent performance in standard field applications.
Production Information of Renault, 421M
| Manufacturer | Renault |
|---|
Dimension and Tires Information of Renault, 421M
| Wheelbase | 78.0 inches [198 cm] |
|---|---|
| Weight | 4,906 lbs [2225 kg] |
| Length | 131.9 inches [335 cm] |
| Height | 92.5 inches [234 cm] |
| Ag front | 6.00-16 |
|---|---|
| Ag rear | 13.6-28 |
Engine Specifications of Renault, 421M
- MWM D325-3
- Diesel
- 3-cylinder
| Rated RPM | 2150 |
|---|---|
| Bore/Stroke | 3.74x4.724 inches [95 x 120 mm] |
| Displacement | 155.7 ci [2.6 L] |
| Torque | 114.3 lb-ft [155.0 Nm] |
| Power | 42 hp [31.3 kW] |
| Torque RPM | 1500 |
Transmission Information of Renault, 421M
Transmission variants 1
| Gears | 10 forward and 2 reverse |
|---|
Mechanical Specs of Renault, 421M
- Two-wheel drive
- Optional
- Dry disc brakes
| Steering | Mechanical |
|---|
Power Information of Renault, 421M
| Rear PTO Type | 540/750 |
|---|
Hydraulics Specifications of Renault, 421M
| Total flow | 6.6 gpm [25.0 lpm] |
|---|---|
| Total flow(optional) | 7.9 gpm [29.9 lpm] |
Three-Point Hitch of Renault, 421M
| Rear lift | 4,410 lbs [2000 kg] |
|---|---|
| Rear lift(optional) | 5,513 lbs [2500 kg] |
Where it sits
With 42 HP, the Renault 421M sits between Super 6 (40 HP) and 56 (43 HP) in Renault's range. Its power puts it in the 25th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Renault 421M have?
The Renault 421M delivers 42 HP.
What years was the Renault 421M produced?
The Renault 421M was produced in 1977-1985.
What engine does the Renault 421M have?
The Renault 421M is powered by a Diesel, 3-cylinder engine.
How much does the Renault 421M weigh?
The Renault 421M weighs 4,906 lbs [2225 kg].
Is the Renault 421M 4WD?
The Renault 421M is available in 2WD.