AGCO Allis 6680

The AGCO Allis 6680 is a tractor produced by Agco Allis. It is equipped with a 244 ci 4.0 L engine. The rated power output is 79.27 hp 59.1 kW. Transmission: 30 forward and reverse. Operating weight: 6724 to 7385 pounds.

Engine Power
79.27 hp 59.1 kW
Fuel & Capacities
28.27 gal 107.0 L
Transmission
30 forward and reverse
Operating Weight
6724 to 7385 pounds

Agco Allis 6680 Serial Number & Year Decoder

Find the exact manufacture year of your tractor by checking your chassis serial number below.

Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.

Overview

AGCO Allis 6680 tractor photo
1991 - 1997 6600 SeriesUtility tractorSAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
Production
Distributor
AGCO Allis
Manufacturer
SAME
Utility tractor
Built in Italy
Original price was $40,000 in 1997
Variants
5680
ROPS
6680
Cab
Explorer II 80
similar SAME model
AGCO Allis 6680 Engine
SLH 4.0L 4-cyl diesel
Engine details ...
AGCO Allis 6680 Power
Engine
79.27 hp 59.1 kW
PTO (claimed)
72.7 hp 54.2 kW
Drawbar (tested)
62.09 hp 46.3 kW
PTO (tested)
72.7 hp 54.2 kW
Performance test details ...
Mechanical
Two- or four-wheel drive
Differential lock
mechanical foot-actuated rear
Power steering
Hydraulic wet disc brakes
Cab standard with air-conditioning.
Capacity
Fuel
28.27 gal 107.0 L
Hydraulic system
15.2 gal 57.5 L
Hydraulics
Type
open center
Capacity
15.2 gal 57.5 L
Pressure
2610 psi 180.0 bar
Valves
2
Pump flow
11.1 gpm 42.0 lpm
Tractor hitch
Rear Type
II/I
Control
position and draft control with lower-link sensing
Rear lift (at ends)
6,790 lbs 3079 kg
Power Take-off (PTO)
Rear PTO
independent
Clutch
124.5mm hydraulic wet disc
Rear PTO Type
540/1000 (1.375)
Engine RPM
540@2200
1000@2450
Dimensions & Tires
2WD Wheelbase
96.4 inches 244 cm
4WD Wheelbase
92.8 inches 235 cm
Weight
6724 to 7385 pounds
Front tire
7.50-18
Rear tire
16.9R34 (2WD)
Full dimensions and tires ...
Electrical
Ground
negative
Charging system
alternator
Charging amps
55
Battery volts
12
Battery AH
100
References
6680 references literature
6600 Series published in 1991, by AGCO

Engine

AGCO Allis 6680 tractor photo
1991 - 1997 6600 SeriesUtility tractorSAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
1991 - 1997
6600 Series
Utility tractor
SAME built

Engine Detail — 244 ci / 4.0 L Diesel

Manufacturer
SLH 1000.4-A
Fuel Type
Diesel
Configuration
4-cylinder, air-cooled
Displacement
244 ci 4.0 L
Bore/Stroke
4.13x4.55 inches 105 x 116 mm
Power
79.27 hp 59.1 kW
Air cleaner
dry element
Compression
17:1
Rated RPM
2500
Idle RPM
650-2710
Starter volts
12
Starter power
4.7 hp 3.5 kW
Oil capacity
9.7 qts 9.2 L

Transmission

AGCO Allis 6680 tractor photo
1991 - 1997 6600 SeriesUtility tractorSAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
Transmission options
12-speed synchromesh
24-speed
16-speed
30-speed partial power shift

Transmission — 12 forward and reverse synchromesh

Type
synchromesh
Gears
12 forward and reverse
Clutch
305mm dry disc
Oil capacity
61 qts 57.7 L
Four synchronized gears in three ranges.
With 16.9R34 rear tires.
6680  synchromesh speeds

Transmission — 24 forward and 12 reverse

Gears
24 forward and 12 reverse

Transmission — 16 forward and reverse

Gears
16 forward and reverse

Transmission — 30 forward and reverse partial power shift

Type
partial power shift
Gears
30 forward and reverse
Five gears (1-5) in three ranges (L/M/H) with high-low power shift.

Dimensions

AGCO Allis 6680 tractor photo
1991 - 1997 6600 SeriesUtility tractorSAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
AGCO Allis 6680 Tires
Standard tires (ag)
Front: 7.50-18. Rear: 16.9R34 (2WD)
Front: 14.9R24. Rear: 16.9R34 (4WD)
Dimensions
2WD Wheelbase
96.4 inches 244 cm
4WD Wheelbase
92.8 inches 235 cm
Length
161 inches 408 cm
Width
82.4 inches 209 cm
Height
111.2 inches 282 cm
Ground clearance
17.6 inches 44 cm
Flange rear axle
AGCO Allis 6680 Weight
2WD Shipping
6,724 lbs 3050 kg
4WD Shipping
7,385 lbs 3349 kg
2WD Max capacity
11,464 lbs 5200 kg
4WD Max capacity
12,015 lbs 5450 kg

Tests

AGCO Allis 6680 tractor photo
1991 - 1997 6600 SeriesUtility tractorSAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
1991 - 1997
6600 Series
Utility tractor
SAME built
OCED Tractor Test 1091
Diesel 12-speed 4WD 7/1987 Link: OCED Tractor Test 1091 file
PTO performance
Power at rated engine speed
72.7 hp 54.2 kW
Fuel use
4.4 gal/hour 16.7 l/hour
Drawbar performance
Max power
62.09 hp 46.3 kW
Fuel use
5.2 gal/hour 19.7 l/hour
Gear 3N used for power test.
Max pull
5860 lbs 2658 kg
Gear 3N used for pull test.

Photos

AGCO Allis 6680 tractor photo

AGCO Allis 6680 tractor photo