Fiat 55-66
The Fiat 55-66 is a utility tractor built for everyday farm work. It has a 2-wheel drive system and power steering, making it easy to handle. The tractor comes with a manual transmission that offers 12 forward gears and 4 reverse gears, giving drivers plenty of options for different tasks. Under the hood, the Fiat 55-66 has an Iveco 8035.06 engine. This diesel engine has 3 cylinders and is liquid-cooled. It produces 54.3 hp at 2500 rpm, which is about average power for tractors in its class. The engine size is also average, with a displacement of 165.4 cubic inches. The tractor weighs 6450 pounds, which is above average for its category. It measures 143 inches long and 94 inches tall, making it compact enough for various farm jobs.
Quick specs
- Category
- Utility
- Engine Power Output
- 54hp
- Operating Weight
- 6,450 lb
- Transmission
- Manual
At a glance
How the 55-66 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
This model
The 55-66 ranks at the 49th percentile for engine power among recorded utility tractors.
Overview
About the Fiat 55-66
The Fiat 55-66 is a utility tractor built for everyday farm work. It has a 2-wheel drive system and power steering, making it easy to handle. The tractor comes with a manual transmission that offers 12 forward gears and 4 reverse gears, giving drivers plenty of options for different tasks. Under the hood, the Fiat 55-66 has an Iveco 8035.06 engine. This diesel engine has 3 cylinders and is liquid-cooled. It produces 54.3 hp at 2500 rpm, which is about average power for tractors in its class. The engine size is also average, with a displacement of 165.4 cubic inches. The tractor weighs 6450 pounds, which is above average for its category. It measures 143 inches long and 94 inches tall, making it compact enough for various farm jobs.
Full specifications
Every recorded spec
General
| Manufacturer | Fiat |
|---|---|
| Model | 55-66 |
| Category | Utility tractor |
| Type | 4x2 2WD |
| Operating weight | 6,450lb |
Engine
| Make | Iveco |
|---|---|
| Model | 8035.06 |
| Power | 54.3hp |
| Cylinders | 3 |
| Displacement | 165.4ci |
| Bore | 3.94in |
| Stroke | 4.53in |
Transmission
| Type | Manual |
|---|---|
| Forward gears | 12 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Power |
Dimensions
| Length | 143in |
|---|---|
| Height | 94in |
| Operating weight | 6,450lb |
Tires
| Front | 7.50-16 |
|---|---|
| Rear | 14.9R28 |
Head to head
55-66 vs. Utility median
How the Fiat 55-66 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 54.3 hp | 55 hp | -1% | 49th |
| Engine Displacement | 165 ci | 183 ci | -10% | 44th |
| Cylinders | 3 | 4 | -25% | 23rd |
| Forward Gears | 12 | 12 | at median | 50th |
| Operating Weight | 6,450 lb | 5,303 lb | +22% | 61st |
| Length | 143 in | 137 in | +5% | 59th |
| Height | 94 in | 94.1 in | 0% | 50th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 4,321–5,720 models).
Compare to tractors with similar specs
Commonly compared Fiat tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Fiat 55-88 | 54.3 hp | 6,173 lb | — | Compare → |
| Fiat 56-66S | 54.3 hp | 4,685 lb | — | Compare → |
| Fiat 55-46 | 54.2 hp | 4,431 lb | — | Compare → |
| Fiat 55-75 | 54.2 hp | 6,261 lb | — | Compare → |
| Fiat 540 | 54 hp | 4,630 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Apollo 554 | 55 hp | 6,239 lb | — | Compare → |
| Ascot Universal 550 | 55 hp | 4,600 lb | — | Compare → |
| Barreiros 5000 | 55 hp | 5,030 lb | — | Compare → |
| Barreiros 5000 VL | 55 hp | 4,080 lb | — | Compare → |
| Belarus 405 | 55 hp | 7,056 lb | — | Compare → |
Explore
Fiat siblings
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FAQ
Common questions
How powerful is the Fiat 55-66?
The Fiat 55-66 has an engine power output of 54.3 hp. It is powered by a 3-cylinder engine displacing 165.4 ci.
What are the factory tire sizes for the Fiat 55-66?
The Fiat 55-66 comes with 7.50-16 front tires and 14.9R28 rear tires.
What is the working weight of the Fiat 55-66?
The operating weight of the Fiat 55-66 is approximately 6,450 lb.
What type of transmission does the Fiat 55-66 have?
The Fiat 55-66 uses a Manual transmission offering 12 forward gears.
What routine service does the Fiat 55-66 need?
Regular maintenance for the Fiat 55-66 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.

