David Brown 990 Implematic VS J.I. Case 431 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 | - |

J.I. Case 431
General InfosMake | J.I. Case |
Model | 431 |
Country | Unites states |
Production | From 1960 Until 1969 |
Price | 4,500 USD |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | J.I. Case 431 Manual |
Dimensions, sizes and tires
AG front tires | 5.50x16 |
AG rear tires | 12.4x28 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 3375 lbs or 1530 kg |
Length | 127.375 inches [323 cm] (wide front) |
Width | 79.625 inches [202 cm] |
Height | - |
Wheelbase | 79.5 inches [201 cm] (wide front) |
Ground clearance | 20.125 inches [51 cm] |
Turning radius | - |
Rear tread size | 48 to 88 inches |
Front tread size | 6.5/11.5 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 188.4 ci or 3.1 L |
Cylinders | 4 cylinders |
Engine power | - |
Engine RPM | 1750 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 13 gal or 49.2 L |
Oil capacity | 5 qts or 4.7 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | J.I. Case 431 Parts |
Batteries number | 2 |
Batteries voltage | 6 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | Dual-Range Shuttle |
Trans type | mechanical shuttle |
Trans gears | 8 forward and reverse |
Clutch system | 279.4mm dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | manual |
Braking system | mechanical band/disc |
Cabin type | Open operator station |
Differentiel lock | - |
System | Dual-Control |
Valves | 1 |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 30.33 hp or 22.6 kW |
Fuel consumption | 2.1 gal/hour or 7.9 l/hour |
Pulling power | 4,506 lbs or 2043 kg |
Claimed power | 34 hp or 25.4 kW |
Real power | 34.38 hp or 25.6 kW |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | live |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 2.0 gal/hour or 7.6 l/hour |
Hitch system | Draft-o-Matic draft control |
Rear hitch | I |
Rear hitch lift | - |
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 J.I. Case 431 manual book version
- Cabine, electrical And mechanical parts for J.I. Case 431 farm-tractor here