Overview
The Fiat 680 is a farm tractor produced between 1978 and 1984, offered in both two-wheel drive and four-wheel drive variants. It features a 3.5L four-cylinder diesel engine rated at 68 hp and is equipped with a Category II rear hitch providing 5,292 lbs of lift capacity. The model was listed with an original price of $22,000 in 1984 and supports multiple transmission configurations including partially synchronized and creeper options.
Ideal Applications
Transmission and Speed Configurations:
This model features four transmission options ranging from an 8-speed partially synchronized unit to a 16-speed creeper system, including a mechanical shuttle variant where reverse speeds are 10 percent slower than forward.
Engine and Fuel Specifications:
The liquid-cooled 210.9 ci diesel engine is rated at 68 hp at 2500 RPM and is supported by a 21.1 gallon fuel tank and a 12-volt electrical system with a 33-amp alternator.
Chassis and Hydraulic Dimensions:
The tractor is built on a 90-inch wheelbase for 2WD or 89.6-inch wheelbase for 4WD, providing between 18.1 and 20.1 inches of front axle clearance and an 8.9 gpm hydraulic pump flow.
Production
| Description | Original price was $22,000 in 1984 |
|---|---|
| Manufacturer | Fiat |
Engine
| Engine type | Fiat 3.5L 4-cyl diesel |
|---|---|
| Fuel tank | 21.1 gal (79.9 L) |
| Bore/Stroke | 3.93x4.33 inches (100 x 110 mm) |
| Compression | 17:1 |
| Description | Fiat / diesel / 4-cylinder / liquid-cooled |
| Displacement | 210.9 ci (3.5 L) |
| Firing order | 1-3-4-2 |
| Power | 68 hp (50.7 kW) |
| Rated RPM | 2500 |
| Starter volts | 12 |
Transmission
| Description | Four gears (1-4) plus reverse (R) in two ranges (low/high). / Four gears (1-4) plus reverse (R) in three ranges (low/intermediate/high). / Four gears (1-4) in two ranges (low/high) with shuttle shift. Reverse speeds are 10% slower than forward. / Four gears (1-4) plus reverse (R) in four ranges (creeper/low/intermediate/high). |
|---|---|
| Gears | 8 forward and 2 reverse / 12 forward and 3 reverse / 8 forward and reverse / 16 forward and 4 reverse |
| Type | partially synchronized / mechanical shuttle / creeper |
| Transmission type | 8-speed partially synchronized / 12-speed / 8-speed mechanical shuttle / 16-speed creeper |
| Transmission type | 8-speed partially synchronized / 12-speed / 8-speed mechanical shuttle / 16-speed creeper |
Mechanical
| Cab | Four-post ROPS. Cab optional with available air-conditioning. |
|---|---|
| Description | Power steering / Hydraulic wet disc brakes |
| Drive type | Two- or four-wheel drive |
Hydraulics
| Pump flow | 8.9 gpm (33.7 lpm) |
|---|
Hitch
| Rear lift | 5,292 lbs (2400 kg) |
|---|---|
| Rear Type | II |
PTO
| Engine RPM | 540@2230 |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 540/1000 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Charging amps | 33 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| 2WD Clearance (front axle) | 20.1 inches (51 cm) |
|---|---|
| 2WD Front tread | 55.1 to 74.8 inches (139 to 189 cm) |
| 2WD Length | 138.1 inches (350 cm) |
| 2WD Weight | 5513 lbs (2500 kg) |
| 2WD Wheelbase | 90 inches (228 cm) |
| 4WD Clearance (front axle) | 18.1 inches (45 cm) |
| 4WD Front tread | 60.2 to 77 inches (152 to 195 cm) |
| 4WD Length | 144.1 inches (366 cm) |
| 4WD Weight | 6174 lbs (2800 kg) |
| 4WD Wheelbase | 89.6 inches (227 cm) |
| Rear tread | 55.1 to 78.7 inches (139 to 199 cm) |
| 2WD Rear tire | 13.6/12-38 |
| 2WD Wheelbase | 90 inches (228 cm) |
| 4WD Wheelbase | 89.6 inches (227 cm) |
| Front tire | 7.50-18 |
| Weight | 5513 to 6174 pounds |
| 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 |
Fiat 680 Height
| 2WD Exhaust | 100.4 inches (255 cm) |
|---|---|
| 2WD Hood | 59.5 inches (151 cm) |
| 2WD Steering wheel | 70.7 inches (179 cm) |
| 4WD Exhaust | 101.2 inches (257 cm) |
| 4WD Hood | 60 inches (152 cm) |
| 4WD Steering wheel | 71.1 inches (180 cm) |
| Cab | 100.6 inches (255 cm) |
Speeds
| Description | With 13.6/12-38 rear tires. / With 13.6/12-38 rear tires. / With 13.6/12-38 rear tires. / With 13.6/12-38 rear tires. |
|---|
Variants
| 680 | 2WD |
|---|---|
| 680DT | 4WD |