International Harvester 1566 VS John Deere 8420 specs comparison
                                         
                                        
                                    
                                
                                                                            
                                        
                                    
                                                                            
                                    
                                                                                        International Harvester 1566
General Infos| Make | International Harvester | 
| Model | 1566 | 
| Country | United states | 
| Production | From 1974 Until 1976 | 
| Price | 26,250 USD | 
| Tractor type | Row Crop tractor | 
| Fuel | diesel | 
| Service repair manual | International Harvester 1566 Manual | 
Dimensions, sizes and tires
| AG front tires | 11L-15 | 
| AG rear tires | 20.8-38 | 
| Lawn front tires | - | 
| Lawn rear tires | - | 
| Indus front tires | - | 
| Indus rear tires | - | 
| Weight | 12,870 lbs or 5837 kg | 
| Length | - | 
| Width | - | 
| Height | - | 
| Wheelbase | 105 inches [266 cm] | 
| Ground clearance | - | 
| Turning radius | - | 
| Rear tread size | - | 
| Front tread size | - | 
| Turning radius | - | 
Horsepower and engin specs
| Engine capacity | 436 ci or 7.1 L | 
| Cylinders | 6 cylinders | 
| Engine power | - | 
| Engine RPM | - | 
| Torque | - | Torque RPM | - | 
| Fuel type | diesel | 
| Fuel injection | - | 
| Fuel tank size | 42 gal or 159.0 L | 
| Oil capacity | - | 
| Oil change | - | 
| Starter motor | - | 
| Starter volts | - | 
| Parts And Accessories | International Harvester 1566 Parts | 
| Batteries number | - | 
| Batteries voltage | - | 
| Battries Amps | - | 
| Cold Amps | - | 
| Ground force | - | 
| Charging system | - | 
| Charging Volts | - | 
| Charging Amps | - | 
| Trans system | sliding gear | 
| Trans type | - | 
| Trans gears | 12 forward and 6 reverse | 
| Clutch system | - | 
| Wheel drive | 4x2 2WD | 
| Final drive | - | 
| Steering | - | 
| Braking system | - | 
| Cabin type | standard | 
| Differentiel lock | - | 
| System | open center | 
| Valves | 1 | 
| Pump flow | 12 gpm or 45.4 lpm | 
| SVC flow | - | 
| Steering flow | - | 
| Tank capacity | - | 
| Hydraulic pressure | - | 
| Max flow | - | 
| Drawbar type | - | 
| Claimed power | 140 hp or 104.4 kW | 
| Drawbar horsepower | - | 
| Fuel consumption | - | 
| Pulling power | - | 
| Claimed power | 161 hp or 120.1 kW | 
| Real power | - | 
| Engine @RPM | - | 
| PTO Clutch | - | 
| Rear PTO | independent | 
| Rear PTO RPM | 1000 (rpm) | 
| Front PTO | - | 
| Front PTO RPM | - | 
| Mid PTO | - | 
| Mid PTO RPM | - | 
| Fuel consumption | - | 
| Hitch system | - | 
| Rear hitch | 3/2 | 
| Rear hitch lift | - | 
| Front hitch | - | 
| Front hitch lift | - | 
                                        
                                    
                                                                            
                                        
                                    
                                                                            
                                    
                                                                                        John Deere 8420
General Infos| Make | John Deere | 
| Model | 8420 | 
| Country | United states | 
| Production | From 2002 Until 2005 | 
| Price | - | 
| Tractor type | Row Crop tractor | 
| Fuel | diesel | 
| Service repair manual | John Deere 8420 Manual | 
Dimensions, sizes and tires
| AG front tires | 16.9R30 | 
| AG rear tires | 18.4R46 | 
| Lawn front tires | - | 
| Lawn rear tires | - | 
| Indus front tires | - | 
| Indus rear tires | - | 
| Weight | 21,650 lbs or 9820 kg | 
| Length | 211.9 inches [538 cm] | 
| Width | - | 
| Height | 122.2 inches [310 cm] | 
| Wheelbase | 118.9 inches [302 cm] | 
| Ground clearance | - | 
| Turning radius | - | 
| Rear tread size | - | 
| Front tread size | 60 to 80 inches | 
| Turning radius | - | 
Horsepower and engin specs
| Engine capacity | 496 ci or 8.1 L | 
| Cylinders | 6 cylinders | 
| Engine power | 314 hp or 234.1 kW | 
| Engine RPM | 2200 (rpm) | 
| Torque | - | Torque RPM | - | 
| Fuel type | diesel | 
| Fuel injection | electronic high-pressure common rail (HPCR) | 
| Fuel tank size | 160 gal or 605.6 L | 
| Oil capacity | 28.5 qts or 27.0 L | 
| Oil change | 250 h | 
| Starter motor | - | 
| Starter volts | 12 V | 
| Parts And Accessories | John Deere 8420 Parts | 
| Batteries number | 2 | 
| Batteries voltage | 12 V | 
| Battries Amps | - | 
| Cold Amps | 925 | 
| Ground force | negative | 
| Charging system | alternator | 
| Charging Volts | - | 
| Charging Amps | 150 amps | 
| Trans system | John Deere PowerShift | 
| Trans type | full power shift | 
| Trans gears | 16 forward and 4 reverse | 
| Clutch system | hydraulic wet disc | 
| Wheel drive | 4x4 MFWD 4WD | 
| Final drive | - | 
| Steering | hydrostatic power | 
| Braking system | hydraulic wet disc | 
| Cabin type | Cab standard | 
| Differentiel lock | - | 
| System | closed center pressure-flow compensated | 
| Valves | 4 to 5 | 
| Pump flow | - | 
| SVC flow | 30 gpm or 113.6 lpm | 
| Steering flow | - | 
| Tank capacity | 37 gal or 140.0 L | 
| Hydraulic pressure | 2900 psi or 200.0 bar | 
| Max flow | 33.5 gpm or 126.8 lpm | 
| Drawbar type | - | 
| Claimed power | - | 
| Drawbar horsepower | 207.49 hp or 154.7 kW | 
| Fuel consumption | 13.6 gal/hour or 51.5 l/hour | 
| Pulling power | 29,964 lbs or 13591 kg | 
| Claimed power | 235 hp or 175.2 kW | 
| Real power | 235.45 hp or 175.6 kW | 
| Engine @RPM | 540@1975 (rpm) | 
| PTO Clutch | hydraulic wet discs | 
| Rear PTO | independent | 
| Rear PTO RPM | 1000 (rpm) | 
| Front PTO | - | 
| Front PTO RPM | - | 
| Mid PTO | - | 
| Mid PTO RPM | - | 
| Fuel consumption | 13.7 gal/hour or 51.9 l/hour | 
| Hitch system | - | 
| Rear hitch | III/IIIN | 
| Rear hitch lift | 15180 lbs or 6885 kg | 
| Front hitch | IIIN | 
| Front hitch lift | 11000 lbs or 4989 kg | 
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Useful links and guides ....
- International Harvester provided us with the latest version of its 1566 service repair manual
 - Find All mechanical and electrical parts and accessories of International Harvester 1566 farm-tractor here
 
- Get your John Deere 8420 manual book version
 - Cabine, electrical And mechanical parts for John Deere 8420 farm-tractor here