Fiat

Fiat 680

The Fiat 680 is a farm tractor produced by Fiat from 1978 to 1984. It features a 3.5L 4-cylinder diesel engine producing 68 hp (50.7 kW). The tractor was available in 2WD and 4WD variants, with multiple transmission options including 8-speed partially synchronized, 12-speed, 8-speed mechanical shuttle, and 16-speed creeper. It has a fuel tank capacity of 21.1 gallons (79.9 L) and offers hydraulic wet disc brakes, power steering, and a four-post ROPS with an optional cab featuring air-conditioning. The tractor's rear hitch is type II with a lift capacity of 5,292 lbs (2400 kg). PTO options include independent rear PTO with 540/1000 RPM. Dimensions vary slightly between 2WD and 4WD models, with wheelbases around 90 inches and weights ranging from 5513 to 6174 lbs. Standard tires differ for 2WD and 4WD models, with several optional tire sizes available.
Power68 hp
Founded1978 - 1984
Model680

Technical Specifications

Detailed specifications and technical data for Fiat 680

Power
Engine68 hp (50.7 kW)
Tires
Optional tires (ag)Front: 12.4/11-24. Rear: 13.6/12-36; Front: 11.2/10-24. Rear: 16.9/14-30
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
Engine
Power68 hp (50.7 kW)
Fuel tank21.1 gal (79.9 L)
Rated RPM2500
Bore/Stroke3.93x4.33 inches (100 x 110 mm)
Compression17:1
Displacement210.9 ci (3.5 L)
Firing order1-3-4-2
Engine DetailFiat diesel 4-cylinder liquid-cooled
Starter volts12
Height
Cab100.6 inches (255 cm)
2WD Hood59.5 inches (151 cm)
4WD Hood60 inches (152 cm)
2WD Exhaust100.4 inches (255 cm)
4WD Exhaust101.2 inches (257 cm)
2WD Steering wheel70.7 inches (179 cm)
4WD Steering wheel71.1 inches (180 cm)
Dimensions
2WD Length138.1 inches (350 cm)
2WD Weight5513 lbs (2500 kg)
4WD Length144.1 inches (366 cm)
4WD Weight6174 lbs (2800 kg)
Rear tread55.1 to 78.7 inches (139 to 199 cm)
2WD Wheelbase90 inches (228 cm)
4WD Wheelbase89.6 inches (227 cm)
2WD Front tread55.1 to 74.8 inches (139 to 189 cm)
4WD Front tread60.2 to 77 inches (152 to 195 cm)
2WD Clearance (front axle)20.1 inches (51 cm)
4WD Clearance (front axle)18.1 inches (45 cm)
Electrical
Groundnegative
Battery volts12
Charging amps33
Charging systemalternator
Hydraulics
Pump flow8.9 gpm (33.7 lpm)
Mechanical
ROPSFour-post ROPS. Cab optional with available air-conditioning.
DriveTwo- or four-wheel drive
BrakesHydraulic wet disc brakes
Power steeringYes
Production
Variants680 2WD, 680DT 4WD
ManufacturerFiat
Original price$22,000 in 1984
Years produced1978 - 1984
Transmission
12-speed12 forward and 3 reverse gears; Four gears (1-4) plus reverse (R) in three ranges (low/intermediate/high)
16-speed creeper16 forward and 4 reverse gears; Four gears (1-4) plus reverse (R) in four ranges (creeper/low/intermediate/high)
Transmission options8-speed partially synchronized, 12-speed, 8-speed mechanical shuttle, 16-speed creeper
8-speed mechanical shuttle8 forward and reverse gears; Four gears (1-4) in two ranges (low/high) with shuttle shift; Reverse speeds are 10% slower than forward
8-speed partially synchronized8 forward and 2 reverse gears; Four gears (1-4) plus reverse (R) in two ranges (low/high)
Tractor hitch
Rear TypeII
Rear lift5,292 lbs (2400 kg)
Power Take-off (PTO)
Rear PTOindependent
Engine RPM540@2230, 1000@2410
Rear PTO Type540/1000 (1.375)