David Brown 990 Implematic VS John Deere 8430 specs comparison

David Brown 990 Implematic
General InfosMake | David Brown |
Model | 990 Implematic |
Country | United states |
Production | From 1961 Until 1980 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | David Brown 990 Implematic Manual |
Dimensions, sizes and tires
AG front tires | 6.00-16 |
AG rear tires | 11-32 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 4272 lbs or 1937 kg |
Length | 118 inches [299 cm] |
Width | 67 inches [170 cm] |
Height | - |
Wheelbase | 76.75 inches [194 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 52/56/60/64/68/72/76 inches |
Front tread size | 52/56/60/64/68/72/76 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 185.8 ci or 3.0 L |
Cylinders | 4 cylinders |
Engine power | 52 hp or 38.8 kW |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 13.74 gal or 52.0 L |
Oil capacity | 7.8 qts or 7.4 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | David Brown 990 Implematic Parts |
Batteries number | 2 |
Batteries voltage | 6 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | generator |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | partially synchronized |
Trans gears | 12 forward and 4 reverse |
Clutch system | 279mm dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | manual |
Braking system | differential mechanical expanding shoe |
Cabin type | Open operator station |
Differentiel lock | mechanical rear |
System | open center |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | 2000 psi or 137.9 bar |
Max flow | 7.4 gpm or 28.0 lpm |
Drawbar type | - |
Claimed power | 43 hp or 32.1 kW |
Drawbar horsepower | 43.47 hp or 32.4 kW |
Fuel consumption | 3.4 gal/hour or 12.9 l/hour |
Pulling power | 6,039 lbs or 2739 kg |
Claimed power | 48 hp or 35.8 kW |
Real power | 48.49 hp or 36.2 kW |
Engine @RPM | 540@1800 (rpm) |
PTO Clutch | dry disc |
Rear PTO | transmission |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 3.0 gal/hour or 11.4 l/hour |
Hitch system | - |
Rear hitch | II/I |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |

John Deere 8430
General InfosMake | John Deere |
Model | 8430 |
Country | United states |
Production | From 2006 Until 2009 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | John Deere 8430 Manual |
Dimensions, sizes and tires
AG front tires | - |
AG rear tires | - |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 24,825 lbs or 11260 kg |
Length | 219.1 inches [556 cm] |
Width | - |
Height | 122.9 inches [312 cm] |
Wheelbase | 118.9 inches [302 cm] (ILS) |
Ground clearance | 17.4 inches [44 cm] |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 548 ci or 9.0 L |
Cylinders | 6 cylinders 24 valves |
Engine power | 330 hp or 246.1 kW |
Engine RPM | 2100 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 180 gal or 681.3 L |
Oil capacity | 25.5 qts or 24.1 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | John Deere 8430 Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 925 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 200 amps |
Trans system | John Deere Infinitely Variable Transmission (IVT) |
Trans type | full power shift |
Trans gears | infinite forward and reverse |
Clutch system | hydraulic wet disc |
Wheel drive | 4x4 Independent Link Suspension |
Final drive | - |
Steering | power |
Braking system | wet disc |
Cabin type | CommandView cab standard |
Differentiel lock | - |
System | closed center PFC |
Valves | 3 to 5 |
Pump flow | 31.7 gpm or 120.0 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | 9.5 gal or 36.0 L |
Hydraulic pressure | - |
Max flow | 44 gpm or 166.5 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 211.26 hp or 157.5 kW |
Fuel consumption | 13.6 gal/hour or 51.5 l/hour |
Pulling power | 34,671 lbs or 15726 kg |
Claimed power | 250 hp or 186.4 kW |
Real power | 272.59 hp or 203.3 kW |
Engine @RPM | 540@1817 (rpm) |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 1000 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 14.8 gal/hour or 56.0 l/hour |
Hitch system | - |
Rear hitch | III |
Rear hitch lift | 17,300 lbs or 7847 kg |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- David Brown provided us with the latest version of its 990 Implematic service repair manual
- Find All mechanical and electrical parts and accessories of David Brown 990 Implematic farm-tractor here
- Get your John Deere 8430 manual book version
- Cabine, electrical And mechanical parts for John Deere 8430 farm-tractor here