John Deere
644C
Farm tractor · 1981–1984 · 167 hp
John Deere644C
The John Deere 644C is a farm tractor manufactured from 1981 to 1984. It features a John Deere engine, and four-post with canopy steering. The transmission is a power shift type with 4 forward and 2 reverse.
Engine
| Engine | John Deere |
|---|---|
| Fuel Type | diesel |
| Cylinders | 6 |
| Cooling | liquid-cooled |
| Turbocharger Status | turbocharged intercooled diesel |
| Displacement | 466 ci (7.6 L) |
| Bore | 4.56 in (116 mm) |
| Stroke | 4.75 in (121 mm) |
| Power Gross | 167 hp (124.5 kW) |
| Power Net | 152 hp (113.3 kW) |
| Torque Peak | 472 lb-ft (640 Nm) |
| Torque Peak | 1,300 RPM |
| Air Cleaner | dry |
| Starter Volts | 12 |
| Starter Type | electric |
| Oil Capacity | 20 qts (18.9 L) |
| Coolant Capacity | 472 qts (446.7 L) |
| Manufacturer | John Deere |
| Rated | 2,200 RPM |
Transmission
| Transmission Type | power shift |
|---|---|
| Gears | 4 forward and 2 reverse |
| Available Options | 4-speed power shift |
Hydraulics
| Type | open center |
|---|---|
| Pump Flow | 58 gpm (219.5 lpm) |
| Pressure | 2,625 psi (181 bar) |
Dimensions
| Length | 271.5 in (689 cm) |
|---|---|
| Width | 100.5 in (255 cm) |
| Height Rops | 125.1 in (317 cm) |
| Wheelbase | 115 in (292 cm) |
| Front Tread | 80 in (203 cm) |
| Rear Tread | 80 in (203 cm) |
Weight
| Weight | 28,534 lbs (12,943 kg) |
|---|---|
| Operating | 28,534 lbs (12,943 kg) |
Tires & Tracks
| Front Ag | 20.5-25 |
|---|---|
| Rear Ag | 20.5-25 |
| Front Industrial | 20.5-25, 16.00-24 |
| Rear Industrial | 20.5-25, 16.00-24 |
Fuel
| Capacity | 56 gal (212 L) |
|---|
Steering
| Type | four-post with canopy |
|---|
Cab
| Cab | optional with available air-conditioning |
|---|