| Manufacturer |
Silver King |
| Price |
- |
| Model |
R66 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Plymouth, Ohio, USA |
VARIANTS
NEBRASKA TRACTOR TEST 250 2
| Description |
Gasoline March 23 - April 20, 1936 Link: Nebraska Tractor Test 250 file Drawbar performance Gear 3 used for power test Gear 1 used for pull test |
| Belt power (max) |
19.74hp / 14.7kW |
| Max power |
16.44hp / 12.3kW |
| Max pull |
1647lbs / 747kg |
SILVER KING R66 POWER
| Engine |
24.5hp / 18.3kW |
| Drawbar (tested) |
16.44hp / 12.3kW |
| Belt (tested) |
19.74hp / 14.7kW |
ENGINES OVERVIEW
The Silver King R66 tractor is equipped with either a Hercules 1.9L or 2.2L 4-cylinder gasoline engine, offering versatility in power outputs suitable for various agricultural tasks. The 1.9L engine provides efficiency for lighter work, while the 2.2L engine delivers increased torque for heavier applications, but may lead to higher fuel consumption. Consider choosing the 2.2L for operations requiring more power, balancing performance with potential fuel costs.
| Description |
Hercules 1.9L 4-cyl gasoline Hercules 2.2L 4-cyl gasoline |
ENGINE DETAIL 1
The Silver King R66 tractor is powered by a Hercules IXA engine which, with a displacement of 113ci and a low-rated RPM of 1400, offers reliable torque for agricultural applications. Its 20.5hp output at such RPMs suggests suitability for tasks requiring consistent power at low speeds, potentially minimizing fuel consumption but possibly limiting high-speed operation. While its liquid cooling system aids in maintaining engine temperature, challenge points may arise in parts availability and servicing due to its age in the market.
| Description |
Hercules IXA gasoline 4-cylinder liquid-cooled |
| Displacement |
113ci / 1.9L |
| Bore/Stroke |
3.00x4.00inches / 76x 102 mm |
| Power |
20.5hp / 15.3kW |
| Rated RPM |
1400 |
ENGINE DETAIL 2
The Silver King R66 tractor, powered by the Hercules IXB engine, offers a modest 24.5 hp from a 2.2L, 4-cylinder, liquid-cooled configuration, ideal for light to moderate agricultural tasks. Its relatively low rated RPM of 1400 can improve fuel efficiency, but may limit high-speed performance and responsiveness in demanding applications. Overall, this tractor is well-suited for small scale farming or as a collector's item, given its vintage design and operational simplicity.
| Description |
Hercules IXB gasoline 4-cylinder liquid-cooled The Hercules IXB was used from 1936 onward |
| Displacement |
133ci / 2.2L |
| Bore/Stroke |
3.25x4.00inches / 83x 102 mm |
| Power |
24.5hp / 18.3kW |
| Rated RPM |
1400 |
SILVER KING R66 ENGINES
The Silver King R66 tractor features either a Hercules 1.9L or a 2.2L 4-cylinder gasoline engine, providing flexibility in power output and efficiency based on operational needs. The smaller 1.9L engine may offer better fuel economy for lighter tasks, while the 2.2L variant delivers increased torque for heavier loads and more demanding applications. Ensure optimal performance by matching the chosen engine with appropriate agricultural implements to leverage its horsepower effectively.
| Description |
Hercules 1.9L 4-cyl gasoline Hercules 2.2L 4-cyl gasoline |
TRANSMISSION
The Silver King R66 features a 4-speed forward and 1-speed reverse gear system, offering moderate control for agricultural tasks. This gear configuration enables the operator to optimize power delivery for various field operations but may limit speed versatility in larger plots. It is advisable to consider this tractor's gear setup in scenarios requiring frequent direction changes or varied terrain, where additional gears might enhance efficiency.
| Type |
gear |
| Gears |
4 forward and 1 reverse |
MECHANICAL
The Silver King R66 tractor features a 3x2 2WD chassis, making it suitable for light-duty applications on flat, firm terrain but limiting traction in challenging conditions. The manual steering may require more operator effort and attention, especially during extended use, while the open operator station enhances visibility but exposes the operator to environmental factors. The 4-speed gear transmission provides versatility in speed selection, making it adept for various tasks but potentially less efficient for rapid directional changes compared to modern hydrostatic systems.
| Chassis |
3x2 2WD |
| Steering |
manual |
| Cab |
Open operator station |
| Transmission |
4-speed gear |
SILVER KING R66 TIRES
The Silver King R66 tractor features a front tire size of 6.00x16 and a rear tire size of 9.00x24, providing a balanced weight distribution that enhances traction and stability during field operations. Its agricultural tire specifications indicate suitability for light to moderate tillage and transport tasks, though the rear tire size may limit its capability for heavier implements without risk of slippage. Farmers seeking a versatile machine for diverse applications should consider its maneuverability in tight spaces, alongside potential challenges in handling larger attachments.
| Ag front |
6.00x16 |
| Ag rear |
9.00x24 |
DIMENSIONS
| Length |
128inches / 325cm |
| Width |
75inches / 190cm |
| Height |
64inches / 162cm |
| Weight |
2,790lbs / 1265kg (steel wheels)/3,615lbs / 1639kg (rubber) |
DIMENSIONS & TIRES
The Silver King R66 tractor has a weight range of 2790 to 3615 pounds, providing stability yet requiring adequate power for towing and implements. Its front tire size (6.00x16) offers good maneuverability, while the rear tire size (9.00x24) enhances traction in various terrains, making it suitable for agricultural tasks. However, weight distribution should be monitored to prevent soil compaction, especially in softer ground scenarios.
| Weight |
2790 to 3615 pounds |
| Front tire |
6.00x16 |
| Rear tire |
9.00x24 |
