AGCO Allis 6690
The AGCO Allis 6690 is a tractor produced by Agco Allis. It is equipped with a 244 ci 4.0 L engine. The listed engine power is Diesel (listed): 86.91 hp / 64.8 kW. Transmission: 30 forward and reverse. Operating weight: 6724 to 7385 pounds.
Engine Power
Diesel (listed): 86.91 hp / 64.8 kW
Fuel & Capacities
28.27 gal
107.0 L
Transmission
30 forward and reverse
Operating Weight
6724 to 7385 pounds
Overview
 | 1991 - 1997
6600 SeriesUtility tractorSAME built
6600 Series
Utility tractor
SAME built |
|---|
Production | |
|---|---|
Distributor | AGCO Allis |
Manufacturer | SAME |
Utility tractor | |
Built in Italy | |
Original price was $35,000 in 1997 | |
Variants | |
|---|---|
Explorer II 90 | similar SAME model |
AGCO Allis 6690 Engine | |
|---|---|
SLH 4.0L 4-cyl diesel | |
Engine details ...  |
AGCO Allis 6690 Power | |
|---|---|
Engine | 86.91 hp
64.8 kW |
PTO (claimed) | 80.88 hp
60.3 kW |
Drawbar (tested) | 68.53 hp
51.1 kW |
PTO (tested) | 80.85 hp
60.3 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Power steering | |
Hydraulic wet disc brakes | |
Flat-deck with four-post ROPS. Cab optional 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 |
Valves | 2 |
Pump flow | 11.23 gpm
42.5 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 | |
|---|---|
 | |
6600 Series published in 1991, by AGCO |
Engine
Engine Detail — 244 ci / 4.0 L Diesel
Manufacturer | SLH 1000.4-AT |
Configuration | turbocharged diesel, 4-cylinder, air-cooled |
Displacement | 244 ci
4.0 L |
Bore/Stroke | 4.13x4.55 inches
105 x 116 mm |
Power | 86.91 hp
64.8 kW |
Air cleaner | dry element |
Pre-heating | thermostart |
Rated RPM | 2500 |
Idle RPM | 650-2710 |
Starter volts | 12 |
Oil capacity | 9.2 qts
8.7 L |
Transmission
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. | |
 | |
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 6690 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 6690 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
OCED Tractor Test 1080 | |
|---|---|
Diesel 12-speed
5/1987
Link: OCED Tractor Test 1080 file | |
PTO performance | |
Power at rated engine speed | 80.85 hp
60.3 kW |
Fuel use | 4.7 gal/hour
17.8 l/hour |
Drawbar performance | |
Max power | 68.53 hp
51.1 kW |
Fuel use | 5.3 gal/hour
20.1 l/hour |
Photos
AGCO Allis 6690
Recommended Implements & Sizing Guide
Engineering recommendations for Agco Allis 6690 based on its 86.91 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 3 to 4 Bottom (16")3 - 4 铧 (40 cm) | Heavy Duty | Suitable for medium loam and stubble turnover. |
Rotary Cutter / MowerMowing & Clearing | 7 to 8 ft (84-96 in)2.1 - 2.4 m | Heavy Duty | Heavy-duty twin spindle cutter for overgrown acreage. |
Rotary TillerSeedbed Prep | 78 to 84 in200 - 215 cm | Heavy Duty | Heavy commercial tiller with multi-speed gearbox. |
Disc HarrowSecondary Tillage | 10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙 | Heavy Duty | Aggressive residue cutting in corn/cotton stubble. |
Hay BalerHay & Forage | 4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机 | Heavy Duty | Silage and dry hay; 540 RPM PTO with slip-clutch. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Agco Allis 6690.
Estimated Continuous Field Runtime: 6.3 hrs
Approximately 6.3 hours of continuous field operation at ~75% rated power on a full tank (28.3 gal / 107 L).
Estimated 75% Load Fuel Burn~4.5 gal/hr (17.1 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Agco Allis 6690 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Agco Allis 6690.
Converted Equivalents:
Horsepower (HP)86.9 hp
Kilowatts (kW)64.8 kW
Metric Horsepower (PS / CV)88.1 PS
Direct Competitor Comparison
Compare AGCO Allis 6690 against same-era industry alternatives in the same horsepower class.
Current Model
Agco Allis
AGCO Allis 6690
Engine Power:Diesel (listed): 86.91 hp / 64.8 kW
★ Baseline Reference
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