Fiat 550
The Fiat 550 is a tractor produced by Fiat. It is equipped with a 190.32 ci 3.1 L engine. The listed engine power is Diesel (listed): 55 hp / 41.0 kW. Transmission: 8 forward and 2 reverse. Operating weight: 4784 to 5380 pounds.
Engine Power
Diesel (listed): 55 hp / 41.0 kW
Fuel & Capacities
14.3 gal
54.1 L
Transmission
8 forward and 2 reverse
Operating Weight
4784 to 5380 pounds
Overview
 | 1968 - 1978 |
|---|
Production | |
|---|---|
Manufacturer | Fiat |
Variants | |
|---|---|
550DT | 4WD |
Fiat 550 Engine | |
|---|---|
Fiat 3.1L 4-cyl diesel | |
Fuel tank | 14.3 gal
54.1 L |
Engine details ...  | |
Fiat 550 Transmission | |
|---|---|
8-speed | |
Transmission details ...  |
Fiat 550 Power | |
|---|---|
Engine | 55 hp
41.0 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Open operator station. |
Hydraulics | |
|---|---|
Pump flow | 5.8 gpm
22.0 lpm |
Tractor hitch | |
|---|---|
Rear Type | II/I |
Rear lift | 4013 lbs
1820 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540 |
Dimensions & Tires | |
|---|---|
Wheelbase | 81.5 inches
207 cm |
Weight | 4784 to 5380 pounds |
Front tire | 6.00-19 |
Rear tire | 14-28 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 190.32 ci / 3.1 L Diesel
Manufacturer | Fiat |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 190.32 ci
3.1 L |
Bore/Stroke | 3.74x4.33 inches
95 x 110 mm |
Power | 55 hp
41.0 kW |
Rated RPM | 2400 |
Transmission
Transmission — 8 forward and 2 reverse
Gears | 8 forward and 2 reverse |
With 14-28 rear tires. | |
 | |
Dimensions
Fiat 550 Tires | |
|---|---|
Ag front | 6.00-19 |
Ag rear | 14-28 |
Ag rear | 11-36 |
Dimensions | |
|---|---|
Wheelbase | 81.5 inches
207 cm |
Length | 135 inches
342 cm |
Width | 70.9 inches
180 cm |
Height (hood) | 55.9 inches
141 cm |
2WD Weight | 4784 lbs
2170 kg |
4WD Weight | 5380 lbs
2440 kg |
Ground clearance | 17.7 inches
44 cm |
Photos
Fiat 550
Recommended Implements & Sizing Guide
Engineering recommendations for Fiat 550 based on its 55 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 | 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 550.
Estimated Continuous Field Runtime: 5 hrs
Approximately 5 hours of continuous field operation at ~75% rated power on a full tank (14.3 gal / 54.1 L).
Estimated 75% Load Fuel Burn~2.9 gal/hr (10.8 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 550 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Fiat 550.
Converted Equivalents:
Horsepower (HP)55 hp
Kilowatts (kW)41 kW
Metric Horsepower (PS / CV)55.8 PS
Direct Competitor Comparison
Compare Fiat 550 against same-era industry alternatives in the same horsepower class.
Current Model
Fiat
Fiat 550
Engine Power:Diesel (listed): 55 hp / 41.0 kW
★ Baseline Reference
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