Fiat 680 Tractor

Manufacturer Fiat
Price 22,000(USD)
Model 680
Equipment Type -
Factory

VARIANTS

680 2WD
680DT 4WD

FIAT 680 POWER

Engine 68hp / 50.7kW

ENGINE DETAIL

The Fiat 680 tractor features a robust 4-cylinder diesel engine with a displacement of 3.5L, delivering 68hp at a rated RPM of 2500, which is suitable for moderate agricultural tasks. Its 17:1 compression ratio provides efficient combustion, enhancing fuel economy and power output while the 12-volt starter ensures reliable ignition. However, the tractor's performance may be limited in heavy-duty applications due to its lower horsepower compared to modern counterparts, making it best suited for light to medium-duty operations.

Description Fiat diesel 4-cylinder liquid-cooled
Displacement 210.9ci / 3.5L
Bore/Stroke 3.93x4.33inches / 100x 110mm
Power 68hp / 50.7kW
Compression 17:1
Rated RPM 2500
Firing order 1-3-4-2
Starter volts 12

FIAT 680 ENGINE

The Fiat 680 tractor is powered by a robust 3.5L 4-cylinder diesel engine, offering a balance of power and fuel efficiency, which is advantageous for prolonged fieldwork. With a fuel tank capacity of 21.1 gallons (79.9 liters), it supports extended operational periods without frequent refueling, ideal for larger agricultural tasks or remote locations. However, the engine's horsepower and torque should be evaluated to ensure compatibility with specific implements, as underperformance may limit efficiency.

Description Fiat 3.5L 4-cyl diesel
Fuel tank 21.1gal / 79.9L

TRANSMISSIONS OVERVIEW

The Fiat 680 tractor features an 8-speed partially synchronized transmission, providing smooth shifting for both general agricultural tasks and transport duties. Its mechanical shuttle allows for efficient forward-reverse transitions, while the 16-speed creeper gear enhances precision control at low speeds, ideal for tilling and planting. The advantage of this setup is versatility in various farming operations, but the complexity of the transmission may pose a challenge in maintenance and repair.

Description 8-speed partially synchronized 12-speed/8-speed mechanical shuttle 16-speed creeper

TRANSMISSION 1

The Fiat 680 tractor features a partially synchronized transmission with 8 forward and 2 reverse gears, enhancing operational flexibility. The dual-range system (low/high) allows for effective torque management, making it suitable for varied tasks like plowing and hauling. However, the partial synchronization may require more skill during gear shifts, which could be a challenge for inexperienced operators.

Type partially synchronized
Gears 8 forward and 2 reverse
Description Four gears (1-4) plus reverse (R) in two ranges (low/high)

SPEEDS 1

Description With 13.6/12-38 rear tires

TRANSMISSION 2

The Fiat 680 tractor features a 12 forward and 3 reverse gear system, allowing flexibility in speed and torque management across various operational scenarios. The four gears in each of the three ranges (low, intermediate, high) provide optimal power for tasks such as tilling or hauling, making it versatile for farm applications. However, the complexities of the multi-range gearbox may present a learning curve for operators unfamiliar with non-synchronous transmission systems.

Gears 12 forward and 3 reverse
Description Four gears (1-4) plus reverse (R) in three ranges (low/intermediate/high)

SPEEDS 2

Description With 13.6/12-38 rear tires

TRANSMISSION 3

The Fiat 680 tractor features a mechanical shuttle shift with eight forward and reverse gears, allowing for smooth transitions and better control during operations. The configuration of four gears in low and high ranges provides versatility for various tasks, though the reverse speeds being 10% slower may limit quick repositioning. This setup is advantageous for tasks requiring careful maneuvering, yet operators must account for the reduced reverse speed in time-sensitive scenarios.

Type mechanical shuttle
Gears 8 forward and reverse
Description Four gears (1-4) in two ranges (low/high) with shuttle shift. Reverse speeds are 10% slower than forward

SPEEDS 3

Description With 13.6/12-38 rear tires

TRANSMISSION 4

The Fiat 680 tractor features a creeper transmission with 16 forward and 4 reverse gears, providing versatility for various field operations and fine control for slow-speed tasks. The four-range system (creeper, low, intermediate, high) allows operators to optimize power delivery depending on soil conditions or implement type, which can enhance efficiency and reduce strain on both the tractor and attachments. However, the complexity of having multiple gears may present a learning curve for operators unfamiliar with such systems.

Type creeper
Gears 16 forward and 4 reverse
Description Four gears (1-4) plus reverse (R) in four ranges (creeper/low/intermediate/high)

SPEEDS 4

Description With 13.6/12-38 rear tires

MECHANICAL

The Fiat 680 tractor offers versatile drivetrain options with 2WD and 4WD configurations, catering to various field conditions. The power steering enhances maneuverability, while the hydraulic wet disc brakes provide reliable stopping power, ideal for heavier loads. For optimal efficiency, the tractor’s transmission options include 8-speed and 12-speed systems suitable for diverse agricultural tasks, but the choice of transmission should align with specific operational needs to maximize productivity.

Chassis 4x2 2WD/4x4 MFWD 4WD
Steering power
Brakes hydraulic wet disc
Cab Four-post ROPS. Cab optional with available air-conditioning
Transmissions 8-speed partially synchronized 12-speed 8-speed mechanical shuttle 16-speed creeper

HYDRAULICS

Pump flow 8.9gpm / 33.7lpm

TRACTOR HITCH

Rear Type II
Rear lift 5,292lbs / 2400kg

POWER TAKE-OFF (PTO)

Rear PTO independent
Rear RPM 540/1000 (1.375)
Engine RPM 540@2230 / 1000@2410

FIAT 680 TIRES

The Fiat 680 tractor’s tire specifications highlight its adaptability for various agricultural applications; 2WD is suitable for lighter tasks with lower traction demands, while 4WD enhances stability and grip on challenging terrains. The standard and optional tire sizes provide flexibility for optimizing performance depending on field conditions, where wider rear tires improve soil compaction and traction. However, the choice between 2WD and 4WD comes with trade-offs in fuel efficiency and operational costs, as 4WD systems generally consume more power, albeit with superior traction in wet or uneven ground scenarios.

2WD Standard tires (ag) Front: 7.50-18. Rear: 13.6/12-38
4WD Standard tires (ag) Front: 11.2/10-28. Rear: 13.6/12-38
Optional tires (ag) Front: 12.4/11-24. Rear: 13.6/12-36 Front: 11.2/10-24. Rear: 16.9/14-30

DIMENSIONS

2WD Wheelbase 90inches / 228cm
4WD Wheelbase 89.6inches / 227cm
2WD Length 138.1inches / 350cm
4WD Length 144.1inches / 366cm
2WD Weight 5513lbs / 2500kg
4WD Weight 6174lbs / 2800kg
2WD Clearance (front axle) 20.1inches / 51cm
4WD Clearance (front axle) 18.1inches / 45cm
2WD Front tread 55.1 to 74.8inches / 139to 189cm
4WD Front tread 60.2 to 77inches / 152to 195cm
Rear tread 55.1 to 78.7inches / 139to 199cm

FIAT 680 HEIGHT

2WD Steering wheel 70.7inches / 179cm
4WD Steering wheel 71.1inches / 180cm
2WD Hood 59.5inches / 151cm
4WD Hood 60inches / 152cm
Cab 100.6inches / 255cm
2WD Exhaust 100.4inches / 255cm
4WD Exhaust 101.2inches / 257cm

DIMENSIONS & TIRES

The Fiat 680 tractor, with a 2WD wheelbase of 90 inches and a 4WD wheelbase of 89.6 inches, offers stability and maneuverability while maintaining compact dimensions, suitable for various agricultural tasks. Its weight range of 5,513 to 6,174 pounds enhances traction and stability, particularly in fieldwork applications, though it may challenge transportability. With front tires sized 7.50-18 and rear tires of 13.6/12-38, the tractor is designed for optimal soil contact and even weight distribution, which can improve performance on uneven terrain but may limit compatibility with certain implement sizes.

2WD Wheelbase 90inches / 228cm
4WD Wheelbase 89.6inches / 227cm
Weight 5513 to 6174 pounds
Front tire 7.50-18
2WD Rear tire 13.6/12-38

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 33
Battery volts 12


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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