The John Deere 8970 is a four-wheel drive tractor from the 8070 series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1993 to 1996. The John Deere 8970 is equipped with a 14.1 L (861.1 cu·in) six-cylinder diesel engine and one of three transmissions: a partially synchronized transmission with 12 forward and 3 reverse gears, a two-speed power shift transmission with 24 forward and 6 reverse gears, or a full powershift transmission with 12 forward and 2 reverse gears.
The JD 8970 four-wheel drive used the Cummins engine. It is a 14.1 L, 14,111 cm2, (861.1 cu·in) six-cylinder turbocharged aftercooled diesel engine with 140.0 mm (5.51 in) of the cylinder bore and 152.0 mm (5.98 in) of the piston stroke. The compression ratio rating is 14.0:1. This engine produced 405.7 PS (298.3 kW; 400 HP) at 2,100 rpm of output power.
The John Deere 8970 is equipped with articulated power steering, hydraulic wet disc brakes, Sound-Gard cab (standard), and 832.7 liters (220 US gal.; 183.2 Imp. gal) fuel tank.
John Deere 8970 Specifications
| General Specifications | |
| Model | John Deere 8970 |
| Length | 6,830 mm (268.9 in) |
| Width | – |
| Height | – |
| Wheel base | 3,400 mm (133.9 in) |
| Weight (operating) | 15,265 kg (33,655 lbs) |
| Fuel tank capacity | 832.7 liters (220 US gal.; 183.2 Imp. gal) |
| Battery | Three 12V, CCA 925A |
| Cabin type | Sound-Gard cab (standard) |
| Engine | |
| Engine model | Cummins |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 14.1 L, 14,111 cm2, (861.1 cu·in) |
| Bore and stroke | 140.0 mm X 152.0 mm (5.51 in X 5.98 in) |
| Compression ratio | 14.0:1 |
| Horsepower | 405.7 PS (298.3 kW; 400.0 HP) at 2,100 rpm |
| Starter | Electric |
| Oil capacity: | 34.1 L (36 US. qt, 30 Imp. qt.) |
| Coolant capacity: | 68.1 L (72 US. qt, 59.9 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×4 articulated 4WD |
| Steering type | Articulated power |
| Brakes | Hydraulic wet disc |
| Final drive | Inboard planetary |
| Transmission model | Syncro |
| Transmission type | Partially synchronized with PermaClutch hydraulic wet disc clutch |
| Gears | 12 forward and 3 reverse |
| Transmission model | PowrSync |
| Transmission type | Two-speed power shift with hydraulic wet disc clutch |
| Gears | 24 forward and 6 reverse |
| Transmission model | Power Shift |
| Transmission type | Full power shift with hydraulic wet disc clutch |
| Gears | 12 forward and 2 reverse |
| Tires | |
| Front tires | Ag: 24.5R-32 |
| Rear tires | Ag: 24.5R-32 |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent with hydraulic wet disc clutch (optional) |
| Rear PTO speed | 1,000 rpm |
| Hydraulic system | |
| Hydraulic type | Closed center pressure compensated |
| Hydraulic capacity | 143.8 L (38 US. gal, 31.6 Imp. gal.) |
| Pressure | 2530 psi (174.4 bar) |
| Valves | 3 to 5 |
| Pump flow | 44.8 gpm (169.6 lpm) |
| Total flow | 33.3 gpm (126.1 lpm) |
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