Renault 681S - Horsepower, Weight, Specs, Problems, Price & More

The Renault 681S tractor is powered by a MWM 3.8L 4-cyl diesel engine that provides 68hp / 50.7kW of horsepower and 169.6 lb-ft /230.0 Nm torque. It has a 4x2 2WD/4x4 MFWD 4WD drive configuration and a mechanical shuttle transmission.

• Engine
• Transmission
• Brakes
• Steering
• Common Problems
• What Users Like
• Technical Specifications

Engine

The engine is a MWM D227-4 diesel 4-cylinder liquid-cooled with a displacement of 230ci / 3.8L and a bore/stroke of 3.875x4.724inches / 98x 120 mm. It has a compression ratio of 17.8:1 and is rated at 68hp / 50.7kW at 2350 rpm. The engine produces a torque of 169.6 lb-ft /230.0 Nm at 1500 rpm and has a 12-volt starter. The engine is known for its reliability and fuel efficiency.

Transmission

The transmission is a 12-speed mechanical shuttle with four gears in three ranges. It is powered by the MWM D227-4 diesel engine, which produces 68hp / 50.7kW. The transmission is known for its smooth shifting and ease of use. It has a mechanical shuttle that allows for quick and easy direction changes. The transmission is also durable and requires minimal maintenance.

Brakes

The brakes are dry disc and provide excellent stopping power. They are powered by the MWM D227-4 diesel engine, which produces 68hp / 50.7kW. The brakes are easy to use and require minimal maintenance. The engine brake provides additional stopping power when needed. The brakes are known for their reliability and durability.

Steering

The steering is power-assisted and provides excellent maneuverability. It is powered by the MWM 3.8L 4-cylinder diesel engine, which produces 68hp / 50.7kW. The steering is responsive and easy to use. The fuel tank has a capacity of 21.7gal / 82.1L, which provides ample fuel for long workdays. The steering is known for its reliability and ease of use.

Common Problems

Users have reported issues with the chassis, particularly with the 4x4 MFWD 4WD models. The power steering has also been known to fail in some instances. The dry disc brakes have been reported to wear out quickly and require frequent replacement. The ROPS cab has been reported to be uncomfortable for long workdays. The 12-speed mechanical shuttle transmission has been known to have issues with shifting.

What Users Like

Users appreciate the 2wd standard tires (ag) with front tires of 7.50-18 and rear tires of 16.9-30. The 4wd standard tires (ag) with front tires of 11.2-24 and rear tires of 16.9-30 are also popular. The 4wd optional tires (ag) with front tires of 11.2-28 and rear tires of 13.6-38 are also well-liked. Users appreciate the reliability and fuel efficiency of the MWM D227-4 diesel engine. The smooth shifting and ease of use of the 12-speed mechanical shuttle transmission are also popular.

Renault 681S Technical Specifications

Power
Engine	68hp / 50.7kW
Engine Detail
Description	MWM D227-4 diesel 4-cylinder liquid-cooled
Displacement	230ci / 3.8L
Bore/stroke	3.875x4.724inches / 98x 120 mm
Power	68hp / 50.7kW
Compression	17.8:1
Rated Rpm	2350
Torque	169.6 lb-ft /230.0 Nm
Torque Rpm	1500
Starter Volts	12
Engine
Description	MWM 3.8L 4-cyl diesel
Fuel Tank	21.7gal / 82.1L
Transmission
Type	mechanical shuttle
Gears	12 forward and reverse
Clutch	dry disc
Description	Four gears in three ranges with shuttle.
Mechanical
Chassis	4x2 2WD/4x4 MFWD 4WD
Steering	power
Brakes	dry disc
Cab	ROPS. Cab optional.
Transmission	12-speed mechanical shuttle
Tires
2wd Standard Tires (ag)	Front: 7.50-18. Rear: 16.9-30
4wd Standard Tires (ag)	Front: 11.2-24. Rear: 16.9-30
4wd Optional Tires (ag)	Front: 11.2-28. Rear: 13.6-38
Dimensions
2wd Wheelbase	93.3inches / 236cm
4wd Wheelbase	94.9inches / 241cm
2wd Length	150inches / 381cm
4wd Length	156.3inches / 397cm
Width	64.6inches / 164cm *Minimum width.
Height (steering Wheel)	64.2inches / 163cm
Height (cab)	96.1inches / 244cm
2wd Front Tread	51.2 to 74.8inches / 130to 189 cm
4wd Front Tread	53.2 to 74.8inches / 135to 189 cm
Rear Tread	51.2 to 78.8inches / 130to 200 cm
Dimensions And Tires
2wd Wheelbase	93.3inches / 236cm
4wd Wheelbase	94.9inches / 241cm
Weight	5765 to 7926 pounds
Front Tire	7.50-18
2wd Rear Tire	16.9-30
Hydraulics
Type	open center
Pressure	2611psi / 180.0bar
Total Flow	8.0gpm / 30.3lpm
Tractor Hitch
Rear Type	II
Rear Lift	8489lbs / 3850kg
Electrical
Charging System	alternator
Charging Amps	35
Battery Volts	12
Battery Ah	80
Speeds
Description	With 16.9-30 rear tires. Reverse speeds are 3% slower than forward./
Power Take Off Pto
Rear Pto	independent
Rear Rpm	540/1000 (1.375)
Engine Rpm	551@2350 / 642@2350 (540/1000)/ 1099@2350
Weight
2wd Rops	5765lbs / 2615kg
2wd Cab	6504lbs / 2950kg
4wd Rops	7187lbs / 3260kg
4wd Cab	7926lbs / 3595kg

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