The Fiat 550 is a reliable utility tractor from the 1970s and 1980s, designed for versatility and efficiency in agricultural tasks. Powered by a durable 4-cylinder diesel engine, it delivers dependable performance for plowing, hauling, and general fieldwork. Its simple manual transmission and robust hydraulics make it easy to operate and maintain, while its two-wheel and optional four-wheel drive configurations ensure adaptability to varying field conditions. With a practical design focused on durability, the Fiat 550 remains a trusted choice for farmers seeking a straightforward, efficient machine capable of handling a variety of farm duties with ease.
Overview
Model
Fiat 550
Years
1970s – 1980s
Manufacturer
Fiat
Type
Utility Tractor
Engine
Engine
Fiat diesel, 4-cylinder
Displacement
2.9L (2900 cc)
Bore/Stroke
3.94 x 4.33 inches (100 x 110 mm)
Rated Power
Approximately 50 hp (37 kW)
Cooling System
Liquid-cooled
Fuel System
Direct injection
Air Cleaner
Dry type
Rated RPM
2200
Starter Volts
12
Transmission
Type
Manual
Gears
8 forward and 2 reverse
Clutch
Dry disc
Details
Fully synchronized gears for smooth operation
Power
Engine Power
Approximately 50 hp (37 kW)
PTO Power
Approximately 44 hp (32.8 kW)
Mechanical
Chassis
2WD or optional 4WD
Brakes
Mechanical wet disc brakes
Steering
Power steering
Operator Station
Open with optional canopy
Capacity
Fuel Capacity
Approximately 13.2 gallons (50 liters)
Hydraulic System Capacity
8.5 gallons (32 liters)
Hydraulics
Type
Open center
Pump Flow
Approximately 9.3 gpm (35 lpm)
Valves
Dual auxiliary valves (optional)
Tractor Hitch
Rear Type
Category I or II
Control
Position and draft control
Rear Lift Capacity
Approximately 3,500 lbs (1588 kg)
Power Take-off (PTO)
Rear PTO
Independent
Rear PTO Speed
540 RPM
Clutch
Mechanical
Dimensions
Wheelbase
Approximately 77 inches (195 cm)
Length
Approximately 129 inches (328 cm)
Width
Approximately 67 inches (170 cm)
Height
Approximately 88 inches (223 cm)
Weight
Approximately 4,300 lbs (1950 kg)
Ground Clearance
13 inches (33 cm)
Tires
Ag Front
6.00-16
Ag Rear
12.4-28
Electrical
Charging System
Alternator
Battery Volts
12
<h5>Fiat 550 Overview</h5>
The Fiat 550 is a classic utility tractor that was widely produced and utilized during the 1970s and 1980s. Known for its practicality, reliability, and simplicity, the Fiat 550 became a favorite among farmers who required a versatile and durable machine to handle a variety of agricultural tasks. Powered by a 2.9L 4-cylinder diesel engine producing approximately 50 horsepower, this tractor strikes an excellent balance between power and efficiency. Its straightforward 8-speed manual transmission, with two reverse gears, provides operators with flexibility across various terrains and farming operations, from plowing to hauling.
One of the Fiat 550’s standout features is its robust build quality, designed to endure years of intensive use with minimal maintenance. Its open center hydraulic system, with a pump flow of around 9.3 gallons per minute, supports a range of implements, while the rear Category I/II three-point hitch provides a lift capacity of about 3,500 pounds, making it suitable for medium-duty farming tasks. Available in both two-wheel and four-wheel drive configurations, the Fiat 550 offers adaptability for different field conditions, with the optional 4WD improving traction on uneven or muddy terrain.
The Fiat 550 is celebrated for its simplicity and ease of maintenance, but it does have some drawbacks. Common problems noted by users include wear on the clutch and brakes over time, particularly under heavy usage, and the lack of modern conveniences such as a cab or advanced hydraulics. While the mechanical design is straightforward and durable, its technology may feel outdated compared to modern tractors. Additionally, its operator station, while functional, may not offer the comfort required for long hours in extreme weather, though an optional canopy was available for some models.
Despite limitations, the Fiat 550 remains a favorite among farmers and enthusiasts due to its reliability, fuel efficiency, and ease of use. Its relatively simple mechanical systems make it easy to repair and maintain, which has contributed to its enduring presence in agricultural settings even decades after its production ceased. The Fiat 550 continues to hold its place as a dependable workhorse, embodying the practicality and strength that Fiat tractors are known for worldwide.
