John Deere 8970: all source data
All 85 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | John Deere |
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| (no label) | Four-wheel Drive (4WD) tractor |
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| (no label) | Built in Waterloo, Iowa, USA |
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| (no label) | Original price was $144,175 in 1993 |
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Engine| (no label) | Cummins 14.0L 6-cyl diesel |
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Transmission| (no label) | 12-speed partially synchronized |
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| (no label) | 24-speed two-speed power shift |
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| (no label) | 12-speed full power shift |
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Power| Engine (gross) | 400 hp | 298.3 kW |
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| PTO (claimed) | 339 hp | 252.8 kW |
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| Drawbar (tested) | 313.92 hp | 234.1 kW |
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| PTO (tested) | 354.45 hp | 264.3 kW |
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Mechanical| (no label) | Four-wheel drive |
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| Final drives | inboard planetary |
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| (no label) | Articulated power steering |
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| (no label) | Hydraulic wet disc brakes |
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| (no label) | Sound-Gard cab standard. |
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Capacity| Fuel | 220 gal | 832.7 L |
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| Hydraulic system | 38 gal | 143.8 L |
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Hydraulics| Type | closed center pressure compensated |
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| Capacity | 38 gal | 143.8 L |
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| Pressure | 2530 psi | 174.4 bar |
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| Rear valves | 3 to 5 |
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| Pump flow | 44.8 gpm | 169.6 lpm |
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| SCV flow | 33.3 gpm | 126.0 lpm |
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Pto| Rear PTO | independent (optional) |
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| Clutch | hydraulic wet disc |
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| Rear PTO Type | 1000 (1.75) |
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Dimensions| Wheelbase | 134 inches | 340 cm |
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| Weight | 31879 to 33655 pounds |
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| Front tire | 24.5R-32 |
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| Rear tire | 24.5R-32 |
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Serial location| (no label) | Left side of tractor hinge. |
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Electrical| Ground | negative |
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| Batteries | 3 |
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| Battery CCA | 925 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Cummins |
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| (no label) | turbocharged aftercooled diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 855 ci | 14.0 L |
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| Bore/Stroke | 5.50x6.00 inches | 140 x 152 mm |
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| Power (gross) | 400 hp | 298.3 kW |
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| Air cleaner | dual paper elements with aspirator |
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| Compression | 14.0:1 |
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| Rated RPM | 2100 |
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| Starter volts | 12 |
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| Oil capacity | 36 qts | 34.1 L |
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| Coolant capacity (Coolant) | 72 qts | 68.1 L |
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Transmission
Transmission options| (no label) | 12-speed partially synchronized |
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| (no label) | 24-speed two-speed power shift |
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| (no label) | 12-speed full power shift |
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Transmission| Transmission | Syncro |
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| Type | partially synchronized |
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| Gears | 12 forward and 3 reverse |
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| Clutch | PermaClutch hydraulic wet disc |
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| (no label) | Three synchronized gears (1-3) in four ranges (A-D). |
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| Transmission | PowrSync |
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| Type | two-speed power shift |
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| Gears | 24 forward and 6 reverse |
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| Clutch | hydraulic wet disc |
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| (no label) | Six gears (1-6) in four ranges (A-D). Power shift between gear pairs 1/2, 3/4, and 5/6. Synchronized shifting between other gears and ranges. |
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| Transmission | Power Shift |
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| Type | full power shift |
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| Gears | 12 forward and 2 reverse |
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| Clutch | hydraulic wet disc |
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Dimensions
Tires| Ag front | 24.5R-32 |
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| Ag front | 30.5-32 |
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| Ag front | 20.8R-38 |
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| Ag front | 710/70R38 |
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| Ag front | 20.8R-42 |
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| Ag front | 18.4R-46 |
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| Ag rear | 24.5R-32 |
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| Ag rear | 30.5-32 |
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| Ag rear | 20.8R-38 |
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| Ag rear | 710/70R38 |
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| Ag rear | 20.8R-42 |
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| Ag rear | 18.4R-46 |
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Dimensions| Wheelbase | 134 inches | 340 cm |
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| Length | 268.9 inches | 683 cm |
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| Shipping weight | 31,879 lbs | 14460 kg |
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| Operating weight | 33,655 lbs | 15265 kg |
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| Front axle | 4.331 by 128 inches | 110 by 3251 mm |
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| Rear axle | 4.331 by 128 inches | 110 by 3251 mm |
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