Overview
The Sheppard Diesel SD-3 is a 32 hp row-crop tractor built in Hanover, Pennsylvania, known for its fuel efficiency and 3-plow capability. Featuring a choice of 3.1L or 3.5L three-cylinder diesel engines with a high 22:1 compression ratio, this machine was designed for specialized agricultural operations between 1949 and 1956.
Ideal Applications
Row-Crop Farming:
With adjustable front and rear tread widths and an 8-speed gear transmission, this tractor is designed for precision work in row-crop fields.
Stationary Belt Work:
The integrated belt pulley system, operating at 1458 RPM and 3048 ft/min, provides reliable power for driving external farm equipment.
Specialized Orchards and Groves:
Available in SDO-3 orchard and SDG-3 grove variants, the platform adapts to the specific spatial requirements of fruit and nut production.
Production
| Description | Row-Crop tractor / Built in Hanover, Pennsylvania, USA |
|---|---|
| Manufacturer | Sheppard Diesel |
| Total built | 1441 |
Engine
| Bore/Stroke | 4.00x5.00 inches (102 x 127 mm) / 4.25x5.00 inches (108 x 127 mm) |
|---|---|
| Compression | 22:1 |
| Description | Sheppard Diesel 6B / diesel / 3-cylinder / liquid-cooled / Sheppard Diesel 6E / diesel / 3-cylinder / liquid-cooled |
| Displacement | 188.5 ci (3.1 L) / 212.8 ci (3.5 L) |
| Fuel system | indirect injection / indirect injection |
| Power | 32 hp (23.9 kW) |
| Rated RPM | 1650 |
| Starter type | electric |
| Engine type | Sheppard Diesel 3.1L 3-cyl diesel / Sheppard Diesel 3.5L 3-cyl diesel |
| Plows | 3 |
| Engine type | Sheppard Diesel 3.1L 3-cyl diesel / Sheppard Diesel 3.5L 3-cyl diesel |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 8 forward and 2 reverse / 8 forward and 2 reverse |
| Type | gear |
| Transmission type | 8-speed gear / 8-speed |
| Transmission type | 8-speed gear / 8-speed |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Mechanical drum brakes |
| Drive type | Two-wheel drive |
| Final drives | spur gear |
PTO
| Rear PTO Type | 540 |
|---|
Dimensions & Tires
| Front tread | 56 to 80 inches (142 to 203 cm) / 9.25/12.75 inches (tricycle) (23/32 cm) |
|---|---|
| Height | 70.25 inches (178 cm) |
| Length | 131 inches (332 cm) |
| Rear tread | 54 to 82 inches (137 to 208 cm) |
| Weight | 4196 lbs (1903 kg) |
| Wheelbase | 92 inches (233 cm) |
| Front tire | 6.00-16 |
| Rear tire | 11-38 |
| Weight | 4196 lbs (1903 kg) |
| Wheelbase | 92 inches (233 cm) |
| Ag front | 6.00-16 / 5.50-16 |
| Ag rear | 11-38 / 12-38 |
Belt Pulley
| Diameter | 8.25 inches (20 cm) |
|---|---|
| RPM | 1458 |
| Speed | 3048 ft/min (929.03 meters/min) |
| Width | 7.5 inches (19 cm) |
References
| Description | Plow 4 hours for the cost of 1 published by Sheppard Diesel |
|---|
Speeds
| Description | With 11-38 rear tires. |
|---|
Variants
| SD-3 | row-crop |
|---|---|
| SDG-3 | grove |
| SDO-3 | orchard |