| Manufacturer | Cockshutt |
| Price | 3,450(USD) |
| Model | 660 |
| Equipment Type | Row-Crop Tractors |
| Factory |
NEBRASKA TRACTOR TEST 541 2
| Description | Gasoline 6-speed 2WD May 16 - 19, 1955 Link: Nebraska Tractor Test 541 file Drawbar performance Gear 4 used for power test Gear 1 used for pull test |
| Belt power (max) | 33.62hp / 25.1kW |
| Belt fuel use (max) | 3.1gal/hour / 11.7l/hour |
| Max power | 27.99hp / 20.9kW |
| Max pull | 4,309lbs / 1954kg |
NEBRASKA TRACTOR TEST 544 2
| Description | Diesel 6-speed 2WD May 19 - 26, 1955 Link: Nebraska Tractor Test 544 file Drawbar performance Gear 4 used for power test Gear 1 used for pull test |
| Belt power (max) | 33.69hp / 25.1kW |
| Belt fuel use (max) | 2.4gal/hour / 9.1l/hour |
| Max power | 27.48hp / 20.5kW |
| Max pull | 4,393lbs / 1992kg |
COCKSHUTT 660 POWER
| PTO (claimed) | 41hp / 30.6kW |
| Plows | 3 |
| Drawbar (tested) | 27.99hp / 20.9kW |
| Belt (tested) | 33.69hp / 25.1kW |
ENGINES OVERVIEW
The Cockshutt 660 tractor, powered by either a Waukesha-Oliver 2.5L 4-cylinder gasoline or diesel engine, provides versatility in fuel choices, enhancing operational flexibility. Notably, the gasoline variant may offer quicker start-up times in cold conditions, while the diesel option typically delivers greater fuel efficiency and torque for heavy-duty applications. However, users should consider the maintenance differences; gasoline engines often require more frequent tune-ups, whereas diesel engines may benefit from increased longevity and lower operating costs in demanding scenarios.
| Description | Waukesha-Oliver 2.5L 4-cyl gasoline Waukesha-Oliver 2.5L 4-cyl diesel |
ENGINE DETAIL 1
The Cockshutt 660 features a Waukesha-Oliver gasoline engine with a 155 ci (2.5L) displacement and a bore/stroke ratio of 3.62x3.75 inches, which promotes enhanced torque delivery for various farming tasks. The 7.75:1 compression ratio balances power output with fuel efficiency, though it may limit performance in higher altitude operations. Ideal for small to medium-sized farms, this tractor is designed for durability and ease of maintenance, but be wary of parts availability given its vintage status.
| Description | Waukesha-Oliver gasoline 4-cylinder liquid-cooled |
| Displacement | 155ci / 2.5L |
| Bore/Stroke | 3.62x3.75inches / 92x 95 mm |
| Compression | 7.75:1 |
ENGINE DETAIL 2
The Cockshutt 660 features a Waukesha-Oliver 4-cylinder diesel engine with a displacement of 2.5L, providing robust torque suitable for medium-duty applications. With a 16:1 compression ratio, it offers efficient fuel combustion, enhancing power output, which is advantageous for agricultural tasks but may require high-quality diesel fuel to prevent knocking. The engine's bore and stroke dimensions (3.62 x 3.75 inches) indicate a balanced design for good power delivery and durability in prolonged operations, though potential challenges include sourcing parts for older models.
| Description | Waukesha-Oliver diesel 4-cylinder liquid-cooled |
| Displacement | 155ci / 2.5L |
| Bore/Stroke | 3.62x3.75inches / 92x 95 mm |
| Compression | 16:1 |
COCKSHUTT 660 ENGINES
The Cockshutt 660 tractor is equipped with either a Waukesha-Oliver 2.5L 4-cylinder gasoline or diesel engine, providing versatility in fuel type depending on operational needs. The gasoline variant offers quick starts and lower initial costs, while the diesel version delivers superior torque and fuel efficiency, making it ideal for heavy-duty work. Potential challenges include the gasoline model's higher maintenance costs and the diesel engine's weight affecting maneuverability in tight spaces.
| Description | Waukesha-Oliver 2.5L 4-cyl gasoline Waukesha-Oliver 2.5L 4-cyl diesel |
TRANSMISSION
The Cockshutt 660 features unsynchronized gear transmission with 6 forward and 2 reverse gears, which may limit ease of shifting under load compared to synchronized models. This design offers simplicity and durability, beneficial for basic agricultural tasks; however, operators should be aware of potential challenges in smooth gear engagement. Ideal for heavy-duty applications on flat terrain, it may struggle with frequent speed changes or hilly conditions.
| Type | unsynchronized gear |
| Gears | 6 forward and 2 reverse |
MECHANICAL
The Cockshutt 660 tractor features a 4x2 2WD chassis, making it suitable for less rugged terrain but limiting its traction in muddy or hilly conditions. Its open operator station enhances operator visibility and airflow but lacks weather protection, which can be a disadvantage during adverse weather. The 6-speed unsynchronized transmission offers straightforward gear shifting, though it may require more skill and attention for smooth operation compared to modern synchronized systems.
| Chassis | 4x2 2WD |
| Cab | Open operator station |
| Transmission | 6-speed unsynchronized gear |
CAPACITY
| Fuel | 13gal / 49.2L |
| Hydraulic system | 9.5gal / 36.0L |
HYDRAULICS
| Capacity | 9.5gal / 36.0L |
| Pump flow | 8 gpm /30.3 lpm |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540 |
COCKSHUTT 660 TIRES
The Cockshutt 660 tractor features a dual tire configuration with 6.00-16 agricultural front tires for improved maneuverability and a rugged 12.4-38 rear tire setup that enhances traction and stability on uneven terrain. Its tire size combination allows for efficient power transfer, making it suitable for various agricultural tasks, especially in field operations. However, limited ground clearance with this tire setup may be a challenge in particularly rough or heavily cultivated fields.
| Ag front | 6.00-16 |
| Ag rear | 12.4-38 |
DIMENSIONS
| Wheelbase | 92inches / 233cm |
| Weight | 4,050lbs / 1837kg |
DIMENSIONS & TIRES
The Cockshutt 660 tractor features a 92-inch wheelbase, providing stability for field work and maneuverability in tight spaces, which is advantageous for small to mid-sized farms. Weighing 4,050 lbs, it offers adequate weight for traction in various agricultural applications but may be less effective on overly soft terrain due to potential flotation issues. The front tire size of 6.00-16 and rear size of 12.4-38 allows for decent load-bearing capacity and can be optimized for both plowing and transport scenarios, though tire replacement costs and availability should be considered.
| Wheelbase | 92inches / 233cm |
| Weight | 4,050lbs / 1837kg |
| Front tire | 6.00-16 |
| Rear tire | 12.4-38 |
660 SERIAL NUMBERS
| Location | Bottom of dashboard below steering wheel |
| 1959 | 73132 |
| 1960 | 86166 |
| 1961 | 111213 |
| 1962 | 117873 |
| 1963 | 127356 |
| 1964 | 141160 |