Fiat 680
The Fiat 680 is a tractor produced by Fiat. It is equipped with a 210.9 ci 3.5 L engine. The listed engine power is Diesel (listed): 68 hp / 50.7 kW. Transmission: 16 forward and 4 reverse. Operating weight: 5513 to 6174 pounds.
Engine Power
Diesel (listed): 68 hp / 50.7 kW
Fuel & Capacities
21.1 gal
79.9 L
Transmission
16 forward and 4 reverse
Operating Weight
5513 to 6174 pounds
Overview
 | 1978 - 1984 |
|---|
Production | |
|---|---|
Manufacturer | Fiat |
Original price was $22,000 in 1984 | |
Variants | |
|---|---|
680 | 2WD |
680DT | 4WD |
Fiat 680 Engine | |
|---|---|
Fiat 3.5L 4-cyl diesel | |
Fuel tank | 21.1 gal
79.9 L |
Engine details ...  | |
Fiat 680 Power | |
|---|---|
Engine | 68 hp
50.7 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Power steering | |
Hydraulic wet disc brakes | |
Four-post ROPS. Cab optional with available air-conditioning. |
Hydraulics | |
|---|---|
Pump flow | 8.9 gpm
33.7 lpm |
Tractor hitch | |
|---|---|
Rear Type | II |
Rear lift | 5,292 lbs
2400 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540/1000 (1.375) |
Engine RPM | 540@2230 |
1000@2410 | |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 90 inches
228 cm |
4WD Wheelbase | 89.6 inches
227 cm |
Weight | 5513 to 6174 pounds |
Front tire | 7.50-18 |
2WD Rear tire | 13.6/12-38 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 33 |
Battery volts | 12 |
Engine
Engine Detail — 210.9 ci / 3.5 L Diesel
Manufacturer | Fiat |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 210.9 ci
3.5 L |
Bore/Stroke | 3.93x4.33 inches
100 x 110 mm |
Power | 68 hp
50.7 kW |
Compression | 17:1 |
Rated RPM | 2500 |
Firing order | 1-3-4-2 |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
8-speed partially synchronized | |
12-speed | |
8-speed mechanical shuttle | |
16-speed creeper |
Transmission — 8 forward and 2 reverse partially synchronized
Type | partially synchronized |
Gears | 8 forward and 2 reverse |
Four gears (1-4) plus reverse (R) in two ranges (low/high). | |
With 13.6/12-38 rear tires. | |
 | |
Transmission — 12 forward and 3 reverse
Gears | 12 forward and 3 reverse |
Four gears (1-4) plus reverse (R) in three ranges (low/intermediate/high). | |
With 13.6/12-38 rear tires. | |
 | |
Transmission — 8 forward and reverse mechanical shuttle
Type | mechanical shuttle |
Gears | 8 forward and reverse |
Four gears (1-4) in two ranges (low/high) with shuttle shift. Reverse speeds are 10% slower than forward. | |
With 13.6/12-38 rear tires. | |
 | |
Transmission — 16 forward and 4 reverse creeper
Type | creeper |
Gears | 16 forward and 4 reverse |
Four gears (1-4) plus reverse (R) in four ranges (creeper/low/intermediate/high). | |
With 13.6/12-38 rear tires. | |
 | |
Dimensions
Fiat 680 Tires | |
|---|---|
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 | 90 inches
228 cm |
4WD Wheelbase | 89.6 inches
227 cm |
2WD Length | 138.1 inches
350 cm |
4WD Length | 144.1 inches
366 cm |
2WD Weight | 5513 lbs
2500 kg |
4WD Weight | 6174 lbs
2800 kg |
2WD Clearance (front axle) | 20.1 inches
51 cm |
4WD Clearance (front axle) | 18.1 inches
45 cm |
2WD Front tread | 55.1 to 74.8 inches
139 to 189 cm |
4WD Front tread | 60.2 to 77 inches
152 to 195 cm |
Rear tread | 55.1 to 78.7 inches
139 to 199 cm |
Fiat 680 Height | |
|---|---|
2WD Steering wheel | 70.7 inches
179 cm |
4WD Steering wheel | 71.1 inches
180 cm |
2WD Hood | 59.5 inches
151 cm |
4WD Hood | 60 inches
152 cm |
Cab | 100.6 inches
255 cm |
2WD Exhaust | 100.4 inches
255 cm |
4WD Exhaust | 101.2 inches
257 cm |
Photos
Fiat 680
Recommended Implements & Sizing Guide
Engineering recommendations for Fiat 680 based on its 68 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 | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
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 Fiat 680.
Estimated Continuous Field Runtime: 6 hrs
Approximately 6 hours of continuous field operation at ~75% rated power on a full tank (21.1 gal / 79.9 L).
Estimated 75% Load Fuel Burn~3.5 gal/hr (13.4 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
Fiat 680 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Fiat 680.
Converted Equivalents:
Horsepower (HP)68 hp
Kilowatts (kW)50.7 kW
Metric Horsepower (PS / CV)68.9 PS
Direct Competitor Comparison
Compare Fiat 680 against same-era industry alternatives in the same horsepower class.
Current Model
Fiat
Fiat 680
Engine Power:Diesel (listed): 68 hp / 50.7 kW
★ Baseline Reference
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