| Manufacturer |
Rock Island |
| Price |
- |
| Model |
G 15-25 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Rock Island, Illinois, USA |
ROCK ISLAND G 15-25 POWER
| Drawbar (claimed) |
15 hp/11.2 kW |
| Belt (claimed) |
25 hp/18.6 kW |
ENGINE DETAIL
The Rock Island G 15-25 tractor features a Waukesha kerosene engine with a 326 ci (5.3 L) displacement, providing robust torque ideal for heavy field work. Its 4.25x5.75 inch bore and stroke ratio balances power and fuel efficiency, although the reliance on kerosene may limit availability and increase operational costs compared to modern fuels. This tractor is well-suited for vintage agricultural applications but may pose challenges in parts sourcing and maintenance due to its age.
| Description |
Waukesha/kerosene/4-cylinder/liquid-cooled |
| Displacement |
326 ci/5.3 L |
| Bore/Stroke |
4.25x5.75 inches/108 x 146 mm |
ROCK ISLAND G 15-25 ENGINE
The Rock Island G 15-25 is powered by a Waukesha 5.3L 4-cylinder kerosene engine, which offers efficient fuel combustion and suitable torque characteristics for agricultural tasks. One advantage is its adaptability to varying loads thanks to the kerosene fuel type, which can enhance performance in colder conditions. However, challenges may include the availability of kerosene compared to diesel, potentially limiting fuel accessibility in some regions.
| Description |
Waukesha 5.3L 4-cyl kerosene |
TRANSMISSION
The Rock Island G 15-25 tractor features an unsynchronized gear transmission, which can lead to challenges in shifting smoothly under load, particularly for less experienced operators. This design may offer advantages in simplicity and durability, making it suitable for agricultural applications with less frequent gear changes. However, operators should be prepared for potential stalling issues during shifts, especially when navigating uneven terrain or heavy workloads.
MECHANICAL
The Rock Island G 15-25 features a 4x2 2WD chassis, suitable for light-duty agricultural tasks but limited in traction on uneven terrain. Its manual steering, while simpler and potentially less maintenance-intensive, may require more effort to maneuver, especially in tight spaces. The unsynchronized gear transmission can pose challenges in shifting under load, making it essential for operators to manage speed and load carefully during operation to avoid potential wear on the drivetrain.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Open operator station. |
| Transmission |
unsynchronized gear |
DIMENSIONS
DIMENSIONS & TIRES
The Rock Island G 15-25 tractor, weighing 4,200 lbs (1,905 kg), offers a balanced power-to-weight ratio, enhancing its maneuverability in diverse agricultural tasks. Its weight facilitates stable traction, especially in fields with varying soil conditions, but may pose challenges in soft or muddy terrains. For optimal performance, consider implementing proper tire selection and ballast adjustments to improve ground penetration and overall efficiency.
