AGCO Allis

AGCO Allis 6680

The AGCO Allis 6680 is a utility tractor built by SAME and distributed by AGCO Allis from 1991 to 1997. It belongs to the 6600 Series and was built in Italy. The tractor features a 4.0L 4-cylinder air-cooled diesel engine producing 79.27 hp (59.1 kW). It offers multiple transmission options including 12-speed synchromesh, 24-speed, 16-speed, and 30-speed partial power shift. The tractor has two- or four-wheel drive, mechanical foot-actuated rear differential lock, power steering, hydraulic wet disc brakes, and a cab with air-conditioning. Fuel capacity is 28.27 gallons (107.0 L) and hydraulic system capacity is 15.2 gallons (57.5 L). The rear hitch is type II/I with position and draft control and a rear lift capacity of 6,790 lbs (3079 kg). The PTO is independent with 540/1000 RPM options. Dimensions include a 2WD wheelbase of 96.4 inches (244 cm), 4WD wheelbase of 92.8 inches (235 cm), length of 161 inches (408 cm), width of 82.4 inches (209 cm), and height of 111.2 inches (282 cm). Shipping weight ranges from 6,724 to 7,385 lbs depending on configuration. Standard tires vary by drive type. Electrical system features a 12-volt battery and 55 amp alternator. Original price was approximately $40,000 in 1997.
Power79 hp
Founded1991 - 1997
Model6680

Technical Specifications

Detailed specifications and technical data for AGCO Allis 6680

Power
Engine79.27 hp (59.1 kW)
PTO (tested)72.7 hp (54.2 kW)
PTO (claimed)72.7 hp (54.2 kW)
Drawbar (tested)62.09 hp (46.3 kW)
Tires
Standard tires (ag)Front: 7.50-18. Rear: 16.9R34 (2WD), Front: 14.9R24. Rear: 16.9R34 (4WD)
Engine
Typediesel
ModelSLH 1000.4-A
Power79.27 hp (59.1 kW)
Coolingair-cooled
Idle RPM650-2710
Cylinders4-cylinder
Rated RPM2500
Air cleanerdry element
Bore/Stroke4.13x4.55 inches (105 x 116 mm)
Compression17:1
Displacement244 ci (4.0 L)
Oil capacity9.7 qts (9.2 L)
Starter power4.7 hp (3.5 kW)
Starter volts12
Weight
2WD Shipping6,724 lbs (3050 kg)
4WD Shipping7,385 lbs (3349 kg)
2WD Max capacity11,464 lbs (5200 kg)
4WD Max capacity12,015 lbs (5450 kg)
Capacity
Fuel28.27 gal (107.0 L)
Hydraulic system15.2 gal (57.5 L)
Variants
5680ROPS
6680Cab
Explorer II 80similar SAME model
Dimensions
Width82.4 inches (209 cm)
Height111.2 inches (282 cm)
Length161 inches (408 cm)
2WD Wheelbase96.4 inches (244 cm)
4WD Wheelbase92.8 inches (235 cm)
Ground clearance17.6 inches (44 cm)
Electrical
Groundnegative
Battery AH100
Battery volts12
Charging amps55
Charging systemalternator
Hydraulics
Typeopen center
Valves2
Capacity15.2 gal (57.5 L)
Pressure2610 psi (180.0 bar)
Pump flow11.1 gpm (42.0 lpm)
Mechanical
Cabstandard with air-conditioning
DriveTwo- or four-wheel drive
BrakesHydraulic wet disc brakes
Power steeringYes
Differential lockmechanical foot-actuated rear
Production
TypeUtility tractor
Series6600 Series
Built inItaly
DistributorAGCO Allis
ManufacturerSAME
Original price$40,000 in 1997
Years produced1991 - 1997
Transmission
Typesynchromesh
Gears12 forward and reverse
Clutch305mm dry disc
DetailsFour synchronized gears in three ranges.
Options12-speed synchromesh, 24-speed, 16-speed, 30-speed partial power shift
Oil capacity61 qts (57.7 L)
Additional gears24 forward and 12 reverse, 16 forward and reverse, 30 forward and reverse partial power shift
Partial power shift detailsFive gears (1-5) in three ranges (L/M/H) with high-low power shift.
Tractor hitch
Controlposition and draft control with lower-link sensing
Rear TypeII/I
Rear lift (at ends)6,790 lbs (3079 kg)
Power Take-off (PTO)
Clutch124.5mm hydraulic wet disc
Rear PTOindependent
Engine RPM540@2200, 1000@2450
Rear PTO Type540/1000 (1.375)