AGCO Allis 6670 Tractor

Manufacturer AGCO Allis
Price 40,000(USD)
Model 6670
Equipment Type Utility Tractors
Factory Italy

OCED TRACTOR TEST 1007

Description Diesel 12-speed /1/1986/PTO performance/Drawbar performance
Power at rated engine speed 63.12 hp/47.1 kW
Fuel use 4.3 gal/hour/16.3 l/hour
Max power 55.65 hp/41.5 kW

AGCO ALLIS 6670 POWER

Engine 69.05 hp/51.5 kW
PTO (claimed) 63.13 hp/47.1 kW
Drawbar (tested) 55.65 hp/41.5 kW
PTO (tested) 63.12 hp/47.1 kW

ENGINE DETAIL

The AGCO Allis 6670 tractor features a robust 4-cylinder, 4.0 L diesel engine with an efficient direct injection fuel system, providing 69.05 hp at a rated RPM of 2350. With a compression ratio of 17:1 and a dry element air cleaner, this tractor offers effective power delivery and low emissions, although its air-cooled design may limit cooling efficiency during prolonged high-intensity operations. It's suited for moderate agricultural tasks and light-duty applications, but operators should monitor for adequate cooling under heavy load conditions or extended use.

Description SLH 1000.4-A/diesel/4-cylinder/air-cooled
Displacement 244 ci/4.0 L
Bore/Stroke 4.13x4.55 inches/105 x 116 mm
Power 69.05 hp/51.5 kW
Fuel system direct injection
Air cleaner dry element
Compression 17:1
Rated RPM 2350
Idle RPM 650-2520
Starter volts 12
Starter power 4.7 hp/3.5 kW
Oil capacity 9.7 qts/9.2 L

AGCO ALLIS 6670 ENGINE

The AGCO Allis 6670 features a robust SLH 4.0L 4-cylinder diesel engine, offering a balance of power and fuel efficiency for agricultural applications. Its compact size enhances maneuverability in tight fields, but the limited horsepower may challenge performance in heavy-duty tasks like plowing or large implement operations. Optimal for small to medium farms, this tractor excels in routine tasks such as tilling and planting, making it an economical choice for those prioritizing versatility and fuel management.

Description SLH 4.0L 4-cyl diesel

TRANSMISSIONS OVERVIEW

The AGCO Allis 6670 features an advanced transmission with options for 12-speed synchromesh, 24-speed, 16-speed, or 30-speed partial power shift, allowing for enhanced flexibility in speed selection and improved operational efficiency. The partial power shift capability enables seamless gear changes under load, which is ideal for varying field conditions and tasks. However, the complexity of the transmission system may require more maintenance and operator training to maximize its potential.

Description 12-speed synchromesh/24-speed/16-speed/30-speed partial power shift

TRANSMISSION 1

The AGCO Allis 6670 features a synchromesh transmission with 12 forward and reverse gears, allowing for smooth operation and versatility in various applications. Its 280mm dry disc clutch provides durability, but may require more maintenance compared to wet clutches, especially in heavy-duty scenarios. With an oil capacity of 55 quarts, ensure regular checks to maintain optimal lubrication and performance, preventing potential overheating or mechanical failure.

Type synchromesh
Gears 12 forward and reverse
Clutch 280mm dry disc
Oil capacity 55 qts/52.1 L
Description Four synchronized gears in three ranges.

SPEEDS

Description With 16.9R30 rear tires.

TRANSMISSION 2

The AGCO Allis 6670 features a 24 forward and 12 reverse gear configuration, providing excellent versatility for various agricultural tasks. This extensive range allows for precise speed control, making it suitable for both field operations and transport. However, the complexity of the transmission may require more operator training to maximize efficiency and prevent gear-related damage.

Gears 24 forward and 12 reverse

TRANSMISSION 3

The AGCO Allis 6670 tractor features a 16-speed transmission, providing excellent versatility for various field operations and enhancing efficiency in both forward and reverse gears. This wide range of gear selection allows for precise speed adjustments, improving torque delivery during heavy-duty tasks. However, the complexity of operating multiple gears may require a steeper learning curve for operators unfamiliar with advanced transmission systems.

Gears 16 forward and reverse

TRANSMISSION 4

The AGCO Allis 6670's partial power shift transmission offers 30 forward and reverse gears, which enhances productivity by allowing precise speed control across various terrains. Its five-speed configuration with three ranges (low, medium, high) optimizes fuel efficiency and adaptability for different field applications. While the transmission provides smooth shifting, operators may face a learning curve when transitioning between ranges to maximize performance.

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

MECHANICAL

The AGCO Allis 6670 tractor features a versatile drivetrain with optional 4WD, enhancing traction and stability in diverse field conditions. Its mechanical differential lock provides improved traction in challenging terrain, while the hydrostatic power steering ensures ease of maneuverability. With multiple transmission options, including partial power shift, this tractor can effectively adapt to various operational speeds and workloads, making it suitable for both fieldwork and transport scenarios.

Chassis 4x2 2WD/4x4 MFWD 4WD (optional)
Differential lock mechanical foot-actuated rear
Steering hydrostatic power
Brakes hydraulic wet disc
Cab Cab standard with air-conditioning.
Transmissions 12-speed synchromesh/24-speed/16-speed/30-speed partial power shift

CAPACITY

Fuel 22.98 gal/87.0 L
Hydraulic system 13.7 gal/51.9 L

HYDRAULICS

Type open center
Capacity 13.7 gal/51.9 L
Pressure 2610 psi/180.0 bar
Valves 2
Pump flow 8.72 gpm/33.0 lpm

TRACTOR HITCH

Rear Type II/I
Control position and draft control with lower-link sensing
Rear lift (at ends) 6,490 lbs/2943 kg

POWER TAKE-OFF (PTO)

Rear PTO independent
Clutch 124.5mm hydraulic wet disc
Rear RPM 540/1000 (1.375)
Engine RPM 540@2083/1000@2285

AGCO ALLIS 6670 TIRES

The AGCO Allis 6670 tractor comes equipped with standard agricultural tires, with configurations for both 2WD (Front: 7.50-16, Rear: 16.9R30) and 4WD (Front: 12.4R24, Rear: 16.9R30), optimizing traction and stability for various agricultural tasks. The 4WD configuration enhances maneuverability and power distribution, making it advantageous for plowing or tilling in wet conditions. However, the choice of tire size and drivetrain layout may affect fuel efficiency and operational costs, especially in diverse terrain scenarios.

Standard tires (ag) Front: 7.50-16. Rear: 16.9R30 (2WD)/Front: 12.4R24. Rear: 16.9R30 (4WD)

DIMENSIONS

2WD Wheelbase 91.2 inches/231 cm
Length 160 inches/406 cm
Width 78.8 inches/200 cm (min)
Height 108 inches/274 cm
Ground clearance 15.2 inches/38 cm
Rear axle Flange

AGCO ALLIS 6670 WEIGHT

2WD 6,173 lbs/2800 kg
4WD 6,702 lbs/3040 kg
Max capacity 9,700 lbs/4399 kg (2WD)/10,803 lbs/4900 kg (4WD)

DIMENSIONS & TIRES

The AGCO Allis 6670 tractor, with a wheelbase of 91.2 inches and a weight range of 6173 to 6702 pounds, offers stability for field operations but may exhibit reduced traction in adverse conditions due to its 2WD configuration. The equipped tires—front 7.50-16 and rear 16.9R30—provide a balance of flotation and grip, making it suitable for lighter tillage and transport tasks, but could struggle with heavier loads on uneven terrain. Ideal scenarios include small to medium-sized farming operations where budget constraints limit the need for 4WD capabilities.

2WD Wheelbase 91.2 inches/231 cm
Weight 6173 to 6702 pounds
Front tire 7.50-16
Rear tire 16.9R30 (2WD)

6670 SERIAL NUMBERS

Location Console, right side
1991 1001
1992 1076
1993 1084
1994 1108

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 55
Battery volts 12
Battery AH 100


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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