| Manufacturer |
ATC |
| Price |
- |
| Model |
556 |
| Equipment Type |
Agricultural Crawler Tractors |
| Factory |
Churubusco, Indiana, USA |
ENGINES OVERVIEW
The ATC 556 tractor is powered by either a Continental 2.7L gasoline or a 2.6L diesel engine, providing flexibility based on fuel preference and operational requirements. The gasoline variant offers quicker starts and a smoother operation for lighter tasks, while the diesel option excels in torque and fuel efficiency, making it ideal for heavy-duty applications. Consider engine efficiency, maintenance costs, and the specific work scenario when selecting the best engine type for your needs.
| Description |
Continental 2.7L 4-cyl gasoline/Continental 2.6L 4-cyl diesel |
ENGINE DETAIL 1
The ATC 556 tractor is powered by a Continental FA-162 gasoline engine with a displacement of 162 ci (2.7 L), featuring a bore and stroke of 3.44 x 4.375 inches, which indicates a generally robust power-to-weight ratio. Operating at a rated RPM of 2250, it is well-suited for applications like moderate tillage and transport tasks in agricultural settings. The electric starter enhances usability, but gasoline engines may require more frequent refueling compared to diesel counterparts in extended operations.
| Description |
Continental FA-162/gasoline/4-cylinder/liquid-cooled |
| Displacement |
162 ci/2.7 L |
| Bore/Stroke |
3.44x4.375 inches/87 x 111 mm |
| Rated RPM |
2250 |
| Starter type |
electric |
ENGINE DETAIL 2
The ATC 556 tractor features a robust Continental GD-157 diesel engine with a displacement of 2.6 liters and a rated RPM of 2250, providing a solid balance of power and torque for various agricultural tasks. Its 4-cylinder configuration enhances fuel efficiency while ensuring reliable performance under load. However, operating at lower RPMs may limit peak horsepower delivery, potentially affecting performance in high-demand applications.
| Description |
Continental GD-157/diesel/4-cylinder/liquid-cooled |
| Displacement |
157 ci/2.6 L |
| Rated RPM |
2250 |
ATC 556 ENGINES
The ATC 556 tractor is powered by either a Continental 2.7L gasoline or a 2.6L diesel engine, providing versatility for different fuel preferences. The gasoline option offers quicker starts and lower initial costs, while the diesel variant ensures better fuel efficiency and torque, beneficial for heavy-duty tasks. Choosing between the two engines depends on the application; gasoline is suitable for lighter, occasional use, whereas diesel excels in continuous, strenuous operations.
| Description |
Continental 2.7L 4-cyl gasoline/Continental 2.6L 4-cyl diesel |
TRANSMISSION
The ATC 556 tractor features a Terramatic transmission equipped with a torque converter, enhancing smooth power delivery and improved traction, especially in challenging terrain. With three forward gears and one reverse, it is optimized for tasks requiring versatility but may limit top speed in comparison to multi-gear systems. Ideal for agricultural applications where consistent power and ease of operation are paramount, but operators may need to manage gear selection carefully for optimal performance.
| Transmission |
Terramatic |
| Type |
torque converter |
| Gears |
3 forward and 1 reverse |
MECHANICAL
The ATC 556 tractor features a crawler chassis, offering superior traction and stability on uneven terrain, making it ideal for construction and agricultural applications. The 3-speed torque converter transmission provides smooth power delivery and adaptability to various operational speeds, enhancing efficiency during both load hauling and maneuvering. However, the open operator station may expose the operator to environmental conditions, which could impact comfort and safety during prolonged use.
| Chassis |
crawler |
| Cab |
Open operator station. |
| Transmission |
3-speed torque converter |
ATC 556 TRACKS
DIMENSIONS & TRACKS
556 SERIAL NUMBERS
| 1955 |
D556-001 (diesel) |
| 1956 |
D556-029 (diesel) |
| 1957 |
D556-096 (diesel) |
| Final |
D556-098 (diesel) |
