Fiat 446
The Fiat 446 is a tractor produced by Fiat. It is equipped with a 158.2 ci 2.6 L engine. The listed engine power is Diesel (listed): 50 hp / 37.3 kW. Transmission: 12 forward and 3 reverse. Operating weight: 4299 to 4762 pounds.
Engine Power
Diesel (listed): 50 hp / 37.3 kW
Fuel & Capacities
16.1 gal
60.9 L
Transmission
12 forward and 3 reverse
Operating Weight
4299 to 4762 pounds
Overview
 | 1983 - 1984
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Fiat |
Utility tractor | |
Variants | |
|---|---|
446DT | 4WD |
Fiat 446 Engine | |
|---|---|
Fiat 2.6L 3-cyl diesel | |
Fuel tank | 16.1 gal
60.9 L |
Engine details ...  | |
Fiat 446 Power | |
|---|---|
Engine | 50 hp
37.3 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Final drives | planetary |
Differential lock | mechanical rear |
Steering | manual |
Steering | power OptOptional |
Drum brakes | |
Four-post ROPS. | |
Hydraulics | |
|---|---|
Type | open center |
Tractor hitch | |
|---|---|
Rear Type | II/I |
Control | position and draft control |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 (1.375) |
Engine RPM | 540@2160 |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 80.7 inches
204 cm |
4WD Wheelbase | 79.2 inches
201 cm |
Weight | 4299 to 4762 pounds |
Front tire | 6.00-16 |
2WD Rear tire | 12.4/11-32 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Charging system | alternator |
Charging amps | 33 |
Battery volts | 12 |
References | |
|---|---|
 | |
Workshop Manual 446 - 446 DT published in 1985 |
Engine
Engine Detail — 158.2 ci / 2.6 L Diesel
Manufacturer | Fiat 8035.02 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 158.2 ci
2.6 L |
Bore/Stroke | 3.94x4.33 inches
100 x 110 mm |
Power | 50 hp
37.3 kW |
Fuel system | direct injection |
Compression | 17:1 |
Rated RPM | 2600 |
Firing order | 1-2-3 |
Starter | electric |
Starter volts | 12 |
Oil capacity | 7.9 qts
7.5 L |
Coolant capacity | 11.1 qts
10.5 L |
Transmission
Transmission options | |
|---|---|
8-speed gear | |
12-speed gear |
Transmission — 8 forward and 2 reverse gear
Type | gear |
Gears | 8 forward and 2 reverse |
Clutch | 279.4mm dry disc |
With 12.4/11-32 rear tires. | |
 | |
Transmission — 12 forward and 3 reverse gear
Type | gear |
Gears | 12 forward and 3 reverse |
Clutch | 279.4mm dry disc |
With 12.4/11-32 rear tires. | |
 | |
Dimensions
Fiat 446 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 6.00-16. Rear: 12.4/11-32 |
Front: 8.3/8-24. Rear: 12.4/11-32 | |
Dimensions | |
|---|---|
2WD Wheelbase | 80.7 inches
204 cm |
4WD Wheelbase | 79.2 inches
201 cm |
2WD Length | 126 inches
320 cm |
4WD Length | 128.9 inches
327 cm |
2WD Clearance (front axle) | 19.5 inches
49 cm |
4WD Clearance (front axle) | 12.6 inches
32 cm |
2WD Front tread | 55.1 to 74.8 inches
139 to 189 cm |
4WD Front tread | 56.9 to 73.8 inches
144 to 187 cm |
Rear tread | 51.2 to 74.8 inches
130 to 189 cm |
Fiat 446 Weight | |
|---|---|
2WD | 4299 lbs
1950 kg |
4WD | 4762 lbs
2160 kg |
2WD Ballasted | 5930 lbs
2689 kg |
4WD Ballasted | 6393 lbs
2899 kg |
Fiat 446 Height | |
|---|---|
2WD Hood | 56.1 inches
142 cm |
4WD Hood | 55.1 inches
139 cm |
ROPS | 93.3 inches
236 cm |
Exhaust | 92.7 inches
235 cm |
Recommended Implements & Sizing Guide
Engineering recommendations for Fiat 446 based on its 50 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 446.
Estimated Continuous Field Runtime: 6.2 hrs
Approximately 6.2 hours of continuous field operation at ~75% rated power on a full tank (16.1 gal / 60.9 L).
Estimated 75% Load Fuel Burn~2.6 gal/hr (9.8 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 446 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Fiat 446.
Converted Equivalents:
Horsepower (HP)50 hp
Kilowatts (kW)37.3 kW
Metric Horsepower (PS / CV)50.7 PS
Direct Competitor Comparison
Compare Fiat 446 against same-era industry alternatives in the same horsepower class.
Current Model
Fiat
Fiat 446
Engine Power:Diesel (listed): 50 hp / 37.3 kW
★ Baseline Reference