Introduction
Renault 551S Utility Tractor
The Renault 551S is a utility tractor produced between 1980 and 1986. Part of the 461S and 651S series, this machine was designed to provide reliable mechanical performance for varied agricultural operations.
Engine and Performance
The tractor is powered by a liquid-cooled MWM D226-3 diesel engine. This 3-cylinder unit has a displacement of 3.1 liters and produces 55 horsepower (41.0 kW) at a rated speed of 2350 RPM. It generates a maximum torque of 141.6 lb-ft (192.0 Nm) at 1500 RPM, providing steady power for field tasks.
Transmission and Drivetrain
The drivetrain features a mechanical shuttle transmission offering 12 forward and 12 reverse gears. Operation is managed through a dry disc clutch. The tractor is available in either two-wheel drive or four-wheel drive configurations, supported by power steering and dry disc brakes to assist in maneuverability.
Hydraulics and Hitch
Equipped with an open-center hydraulic system, the 551S provides a total flow of 7.2 gpm (27.3 lpm) at a system pressure of 2611 psi (180.0 bar). The rear hitch is a Category I type, capable of a lift capacity of 5513 lbs (2500 kg), allowing for the operation of various mounted implements.
PTO and Dimensions
The independent rear PTO operates at 540 and 1000 RPM. The tractor is available with several tire options to adapt to different soil conditions. Dimensions vary by configuration, with the 4WD model featuring a wheelbase of 82.7 inches and the 2WD model a wheelbase of 83.1 inches.
Conclusion
The Renault 551S is a versatile utility tractor suited for general farming requirements. Its combination of a 55 hp engine, mechanical shuttle transmission, and 2500 kg lift capacity makes it a functional tool for small to medium-sized agricultural holdings.
Production Information of Renault, 551S
- Utility tractor
| Manufacturer | Renault |
|---|
Dimension and Tires Information of Renault, 551S
| Rear tread | 51.2 to 70.9 inches [130 to 180 cm] |
|---|---|
| 2WD Wheelbase | 83.1 inches [211 cm] |
| 2WD Width | 66.9 inches [169 cm] |
| 4WD Length | 145.7 inches [370 cm] |
| 4WD Wheelbase | 82.7 inches [210 cm] |
| Height (cab) | 94.1 inches [239 cm] |
| 4WD Width | 63.4 inches [161 cm] |
| 2WD Length | 138.6 inches [352 cm] |
| 4WD Front tread | 55.1 to 76.8 inches [139 to 195 cm] |
| 2WD Front tread | 47.2 to 74.8 inches [119 to 189 cm] |
| Height (steering wheel) | 62.6 inches [159 cm] |
Minimum width
Minimum width
| 4WD Optional tires (ag) | Front: 11.2-24. Rear: 14.9-30 |
|---|---|
| 2WD Standard tires (ag) | Front: 6.50-16. Rear: 14.9-28 |
| 4WD Optional tires (ag) | Front: 11.2-24. Rear: 16.9-28 |
| 4WD Optional tires (ag) | Front: 11.2-28. Rear: 13.6-36 |
| 4WD Standard tires (ag) | Front: 9.5-24. Rear: 14.9-28 |
| 4WD Optional tires (ag) | Front: 8.3-24. Rear: 13.6-36 |
| 4WD Optional tires (ag) | Front: 9.5-28. Rear: 12.4-36 |
Engine Specifications of Renault, 551S
- MWM D226-3
- Liquid-cooled
- Diesel
- 3-cylinder
| Torque RPM | 1500 |
|---|---|
| Displacement | 190.2 ci [3.1 L] |
| Compression | 18:1 |
| Bore/Stroke | 4.134x4.724 inches [105 x 120 mm] |
| Starter volts | 12 |
| Torque | 141.6 lb-ft [192.0 Nm] |
| Rated RPM | 2350 |
| Power | 55 hp [41.0 kW] |
Transmission Information of Renault, 551S
Transmission variants 1
- Four gears in three ranges with shuttle.
| Type | Mechanical shuttle |
|---|---|
| Gears | 12 forward and reverse |
| Clutch | Dry disc |
Mechanical Specs of Renault, 551S
- Two- or four-wheel drive
- ROPS. Cab optional.
- Power steering
- Dry disc brakes
Power Information of Renault, 551S
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 1099@2350 |
| Rear PTO(optional) | 642@2350 (540/1000) |
| Rear PTO Type | 540/1000 (1.375) |
| Engine RPM | 551@2350 |
Hydraulics Specifications of Renault, 551S
| Type | Open center |
|---|---|
| Pressure | 2611 psi [180.0 bar] |
| Total flow | 7.2 gpm [27.3 lpm] |
Three-Point Hitch of Renault, 551S
| Rear Type | I |
|---|---|
| Rear lift | 5513 lbs [2500 kg] |
Electrical System of Renault, 551S
| Charging system | Alternator |
|---|---|
| Battery AH | 80 |
| Charging amps | 35 |
| Battery volts | 12 |
Where it sits
With 55 HP, the Renault 551S sits between 461S (46 HP) and 651S (65 HP) in Renault's range. Its power puts it in the 39th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the Renault 551S have?
The Renault 551S delivers 55 HP.
What years was the Renault 551S produced?
The Renault 551S was produced in 1980-1986.
What engine does the Renault 551S have?
The Renault 551S is powered by a Diesel, 3-cylinder engine.
What transmission does the Renault 551S use?
The Renault 551S uses a Mechanical shuttle transmission.
Is the Renault 551S 4WD?
The Renault 551S is available in 2WD/4WD.