Caterpillar D8 VS John Deere 2020 specs comparison
                                         
                                        
                                    
                                
                                                                            
                                        
                                    
                                                                            
                                    
                                                                                        Caterpillar D8
General Infos| Make | Caterpillar | 
| Model | D8 | 
| Country | United states | 
| Production | From 1937 Until 1965 | 
| Price | - | 
| Tractor type | - | 
| Fuel | - | 
| Service repair manual | Caterpillar D8 Manual | 
Dimensions, sizes and tires
| AG front tires | - | 
| AG rear tires | - | 
| Lawn front tires | - | 
| Lawn rear tires | - | 
| Indus front tires | - | 
| Indus rear tires | - | 
| Weight | 36520 lbs 16565 kg | 
| Length | 186 inches 472 cm | 
| Width | 101 inches 256 cm | 
| Height | 84 inches 213 cm | 
| Wheelbase | - | 
| Ground clearance | - | 
| Turning radius | - | 
| Rear tread size | - | 
| Front tread size | - | 
| Turning radius | - | 
Horsepower and engin specs
| Engine capacity | - | 
| Cylinders | 6 cylinders | 
| Engine power | 115 hp 85.8 kW | 
| Engine RPM | 850 (rpm) | 
| Torque | - | Torque RPM | - | 
| Fuel type | - | 
| Fuel injection | - | 
| Fuel tank size | 57 gal 215.7 L | 
| Oil capacity | - | 
| Oil change | - | 
| Starter motor | - | 
| Starter volts | - | 
| Parts And Accessories | Caterpillar D8 Parts | 
| Batteries number | - | 
| Batteries voltage | 6 V | 
| Battries Amps | - | 
| Cold Amps | - | 
| Ground force | - | 
| Charging system | - | 
| Charging Volts | - | 
| Charging Amps | - | 
| Trans system | - | 
| Trans type | gear | 
| Trans gears | 6 forward and 2 reverse | 
| Clutch system | - | 
| Wheel drive | crawler | 
| Final drive | - | 
| Steering | - | 
| Braking system | - | 
| Cabin type | Open operator station | 
| Differentiel lock | - | 
| System | - | 
| Valves | - | 
| Pump flow | - | 
| SVC flow | - | 
| Steering flow | - | 
| Tank capacity | - | 
| Hydraulic pressure | - | 
| Max flow | - | 
| Drawbar type | - | 
| Claimed power | - | 
| Drawbar horsepower | - | 
| Fuel consumption | - | 
| Pulling power | - | 
| Claimed power | - | 
| Real power | - | 
| Engine @RPM | - | 
| PTO Clutch | - | 
| Rear PTO | - | 
| Rear PTO RPM | - | 
| Front PTO | - | 
| Front PTO RPM | - | 
| Mid PTO | - | 
| Mid PTO RPM | - | 
| Fuel consumption | - | 
| Hitch system | - | 
| Rear hitch | - | 
| Rear hitch lift | - | 
| Front hitch | - | 
| Front hitch lift | - | 
                                        
                                    
                                                                            
                                        
                                    
                                                                            
                                    
                                                                                        John Deere 2020
General Infos| Make | John Deere | 
| Model | 2020 | 
| Country | United states | 
| Production | From 1965 Until 1971 | 
| Price | - | 
| Tractor type | Row Crop tractor | 
| Fuel | gasoline | 
| Service repair manual | John Deere 2020 Manual | 
Dimensions, sizes and tires
| AG front tires | 9.00-10 | 
| AG rear tires | 14.9-28 | 
| Lawn front tires | - | 
| Lawn rear tires | - | 
| Indus front tires | - | 
| Indus rear tires | - | 
| Weight | 5770 lbs or 2617 kg | 
| Length | - | 
| Width | - | 
| Height | - | 
| Wheelbase | 86 inches [218 cm] | 
| Ground clearance | - | 
| Turning radius | - | 
| Rear tread size | - | 
| Front tread size | - | 
| Turning radius | - | 
Horsepower and engin specs
| Engine capacity | 201.8 ci or 3.3 L | 
| Cylinders | 4 cylinders | 
| Engine power | - | 
| Engine RPM | 2500 (rpm) | 
| Torque | - | Torque RPM | - | 
| Fuel type | gasoline | 
| Fuel injection | - | 
| Fuel tank size | 19.5 gal or 73.8 L | 
| Oil capacity | 7 qts or 6.6 L | 
| Oil change | - | 
| Starter motor | - | 
| Starter volts | 12 V | 
| Parts And Accessories | John Deere 2020 Parts | 
| Batteries number | - | 
| Batteries voltage | - | 
| Battries Amps | - | 
| Cold Amps | - | 
| Ground force | - | 
| Charging system | - | 
| Charging Volts | - | 
| Charging Amps | - | 
| Trans system | John Deere collar shift | 
| Trans type | power shuttle | 
| Trans gears | 8 forward and 4 reverse | 
| Clutch system | dry disc | 
| Wheel drive | 4x2 2WD | 
| Final drive | - | 
| Steering | power assist | 
| Braking system | differential hydraulic wet disc | 
| Cabin type | Open operator station | 
| Differentiel lock | - | 
| System | closed center | 
| Valves | - | 
| Pump flow | 10.5 gpm or 39.7 lpm | 
| SVC flow | - | 
| Steering flow | - | 
| Tank capacity | 10 gal or 37.9 L | 
| Hydraulic pressure | 2250 psi or 155.1 bar | 
| Max flow | - | 
| Drawbar type | - | 
| Claimed power | - | 
| Drawbar horsepower | 45.90 hp or 34.2 kW | 
| Fuel consumption | 3.6 gal/hour or 13.6 l/hour | 
| Pulling power | 5,547 lbs or 2516 kg | 
| Claimed power | - | 
| Real power | 49.31 hp or 36.8 kW | 
| Engine @RPM | - | 
| PTO Clutch | - | 
| Rear PTO | live | 
| Rear PTO RPM | 540 (rpm) | 
| Front PTO | - | 
| Front PTO RPM | - | 
| Mid PTO | optional | 
| Mid PTO RPM | 1000 (rpm) | 
| Fuel consumption | 3.0 gal/hour or 11.4 l/hour | 
| Hitch system | - | 
| Rear hitch | II | 
| Rear hitch lift | - | 
| Front hitch | - | 
| Front hitch lift | - | 
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Useful links and guides ....
- Caterpillar provided us with the latest version of its D8 service repair manual
 - Find All mechanical and electrical parts and accessories of Caterpillar D8 farm-tractor here
 
- Get your John Deere 2020 manual book version
 - Cabine, electrical And mechanical parts for John Deere 2020 farm-tractor here