Fiat 640
The Fiat 640 is a tractor produced by Fiat. It is equipped with a 210.89 ci 3.5 L engine. The listed engine power is Diesel (listed): 64 hp / 47.7 kW. Transmission: 8 forward and 2 reverse. Operating weight: 4961 to 6174 pounds.
Engine Power
Diesel (listed): 64 hp / 47.7 kW
Fuel & Capacities
14.3 gal
54.1 L
Transmission
8 forward and 2 reverse
Operating Weight
4961 to 6174 pounds
Overview
 | 1973 - 1978
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Fiat |
Utility tractor | |
Built in Moderna, Italy | |
Variants | |
|---|---|
640 | 2WD |
640DT | 4WD |
Fiat 640 Engine | |
|---|---|
Fiat 3.5L 4-cyl diesel | |
Fuel tank | 14.3 gal
54.1 L |
Engine details ...  | |
Fiat 640 Transmission | |
|---|---|
8-speed gear | |
Transmission details ...  |
Fiat 640 Power | |
|---|---|
Engine | 64 hp
47.7 kW |
PTO (claimed) | 62 hp
46.2 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Manual steering | |
Four-post ROPS. |
Hydraulics | |
|---|---|
Pump flow | 5.8 gpm
22.0 lpm |
Tractor hitch | |
|---|---|
Rear Type | II/I |
Rear lift (at ends) | 4079 lbs
1850 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540 |
Engine RPM | 540@1970 |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 81.5 inches
207 cm |
4WD Wheelbase | 83.9 inches
213 cm |
Weight | 4961 to 6174 pounds |
Front tire | 7.50-16 |
2WD Rear tire | 14-30 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 210.89 ci / 3.5 L Diesel
Manufacturer | Fiat 8045-02 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 210.89 ci
3.5 L |
Bore/Stroke | 3.94x4.33 inches
100 x 110 mm |
Power | 64 hp
47.7 kW |
Fuel system | direct injection |
Compression | 17:1 |
Rated RPM | 2400 |
Torque | 156.4 lb-ft
212.1 Nm |
Torque RPM | 1600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 8 forward and 2 reverse gear
Type | gear |
Gears | 8 forward and 2 reverse |
Four gears, plus reverse, in two ranges. Optional additional creeper range. | |
With 16.9-30 rear tires. | |
 | |
Dimensions
Fiat 640 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 7.50-16. Rear: 14-30 |
4WD Standard tires (ag) | Front: 9.5x24. Rear: 16.9-30 |
Dimensions | |
|---|---|
2WD Wheelbase | 81.5 inches
207 cm |
4WD Wheelbase | 83.9 inches
213 cm |
2WD Length | 125 inches
317 cm |
4WD Length | 132.3 inches
336 cm |
2WD Weight | 4961 lbs
2250 kg |
4WD Weight | 6174 lbs
2800 kg |
Front tread | 52 to 79.3 inches
132 to 201 cm |
Rear tread | 51.2 to 78.7 inches
130 to 199 cm |
Fiat 640 Height | |
|---|---|
2WD Hood | 56 inches
142 cm |
4WD Hood | 58.5 inches
148 cm |
ROPS | 105.9 inches
268 cm |
Photos
Fiat 640
Fiat 640 DT.
Recommended Implements & Sizing Guide
Engineering recommendations for Fiat 640 based on its 64 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 | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
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 640.
Estimated Continuous Field Runtime: 4.3 hrs
Approximately 4.3 hours of continuous field operation at ~75% rated power on a full tank (14.3 gal / 54.1 L).
Estimated 75% Load Fuel Burn~3.3 gal/hr (12.6 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 640 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Fiat 640.
Converted Equivalents:
Horsepower (HP)64 hp
Kilowatts (kW)47.7 kW
Metric Horsepower (PS / CV)64.9 PS
Direct Competitor Comparison
Compare Fiat 640 against same-era industry alternatives in the same horsepower class.
Current Model
Fiat
Fiat 640
Engine Power:Diesel (listed): 64 hp / 47.7 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 544
Engine Power:57.8
Production Years:1968 - 1973
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