Allis Chalmers
HD-21
Farm tractor · 1967–1969 · 268 hp
Allis ChalmersHD-21
The Allis Chalmers HD-21 is a farm tractor manufactured from 1967 to 1969. It features a Allis-Chalmers engine. The transmission is a torque converter type with 2 forward and 1 reverse.
Engine
| Engine | Allis-Chalmers |
|---|---|
| Fuel Type | diesel |
| Cylinders | 6 |
| Cooling | liquid-cooled vertical I-head |
| Turbocharger Status | supercharged |
| Displacement | 844 ci (13.8 L) |
| Bore | 5.25 in (133 mm) |
| Stroke | 6.5 in (165 mm) |
| Compression Ratio | 13.3 |
| Power Gross | 225 hp (167.8 kW) |
| Power Net | 268 hp (199.8 kW) |
| Power Rated | 225 hp (167.8 kW) |
| Power Drawbar | 135.12 hp (100.8 kW) |
| Air Cleaner | oil bath |
| Starter Volts | 24 |
| Starter Type | electric |
| Coolant Capacity | 80 qts (75.7 L) |
| Manufacturer | Allis-Chalmers |
| Rated | 1,800 RPM |
Transmission
| Transmission Type | torque converter |
|---|---|
| Gears | 2 forward and 1 reverse |
| Available Options | 2-speed torque converter |
Dimensions
| Length | 198 in (502 cm) |
|---|---|
| Height | 99 in (251 cm) |
Weight
| Weight | 45,500 lbs (20,638 kg) |
|---|---|
| Shipping | 50,000 lbs (22,680 kg) |
Fuel
| Capacity | 135 gal (511 L) |
|---|