Fiat 50-66
The Fiat 50-66 is a tractor produced by Fiat. It is equipped with a 165.4 ci 2.7 L engine. The listed engine power is Diesel (listed): 49.3 hp / 36.8 kW. Transmission: 12 forward and 4 reverse. Operating weight: 4255 to 4740 pounds.
Engine Power
Diesel (listed): 49.3 hp / 36.8 kW
Fuel & Capacities
11.9 gal
45.0 L
Transmission
12 forward and 4 reverse
Operating Weight
4255 to 4740 pounds
Overview
 | 1989 - 1992
66 SeriesUtility tractor
66 Series
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Fiat |
Utility tractor | |
Fiat 50-66 Engine | |
|---|---|
Iveco 2.7L 3-cyl diesel | |
Fuel tank | 11.9 gal
45.0 L |
Engine details ...  | |
Fiat 50-66 Transmission | |
|---|---|
12-speed | |
Transmission details ...  |
Fiat 50-66 Power | |
|---|---|
Engine | 49.3 hp
36.8 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Power steering |
Tractor hitch | |
|---|---|
Rear lift | 4685 lbs
2125 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 78.7 inches
199 cm |
4WD Wheelbase | 74.8 inches
189 cm |
Weight | 4255 to 4740 pounds |
Front tire | 6.00-16 |
2WD Rear tire | 13.6R28 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 165.4 ci / 2.7 L Diesel
Manufacturer | Iveco 8035.06 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 165.4 ci
2.7 L |
Bore/Stroke | 3.94x4.53 inches
100 x 115 mm |
Power | 49.3 hp
36.8 kW |
Rated RPM | 2500 |
Starter type | electric |
Transmission
Transmission — 12 forward and 4 reverse
Gears | 12 forward and 4 reverse |
Dimensions
Fiat 50-66 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 6.00-16. Rear: 13.6R28 |
4WD Standard tires (ag) | Front: 9.5R20. Rear: 13.6R28 |
Dimensions | |
|---|---|
2WD Wheelbase | 78.7 inches
199 cm |
4WD Wheelbase | 74.8 inches
189 cm |
Length | 127.6 inches
324 cm |
2WD Weight | 4255 lbs
1930 kg |
4WD Weight | 4740 lbs
2150 kg |
Recommended Implements & Sizing Guide
Engineering recommendations for Fiat 50-66 based on its 49.3 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
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 | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
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 50-66.
Estimated Continuous Field Runtime: 4.6 hrs
Approximately 4.6 hours of continuous field operation at ~75% rated power on a full tank (11.9 gal / 45 L).
Estimated 75% Load Fuel Burn~2.6 gal/hr (9.7 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 50-66 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Fiat 50-66.
Converted Equivalents:
Horsepower (HP)49.3 hp
Kilowatts (kW)36.8 kW
Metric Horsepower (PS / CV)50 PS
Direct Competitor Comparison
Compare Fiat 50-66 against same-era industry alternatives in the same horsepower class.
Current Model
Fiat
Fiat 50-66
Engine Power:Diesel (listed): 49.3 hp / 36.8 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 20-40
Engine Power:44.4
Production Years:1914 - 1915