John Deere 8420 VS Challenger 35 specs comparison
                                         
                                        
                                    
                                
                                                                            
                                        
                                    
                                                                            
                                    
                                                                                        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 | 
                                        
                                    
                                                                            
                                        
                                    
                                                                            
                                    
                                                                                        Challenger 35
General Infos| Make | Challenger | 
| Model | 35 | 
| Country | United states | 
| Production | From 1995 Until 1998 | 
| Price | - | 
| Tractor type | Agricultural Crawler tractor | 
| Fuel | diesel | 
| Service repair manual | Challenger 35 Manual | 
Dimensions, sizes and tires
| AG front tires | 16-inch track | 
| AG rear tires | 16-inch track | 
| Lawn front tires | - | 
| Lawn rear tires | - | 
| Indus front tires | - | 
| Indus rear tires | - | 
| Weight | 22262 lbs or 10098 kg | 
| Length | 211 inches [535 cm] | 
| Width | 91 inches [231 cm] | 
| Height | 120 inches [304 cm] | 
| Wheelbase | 86 inches [218 cm] | 
| Ground clearance | - | 
| Turning radius | - | 
| Rear tread size | 60/68/72/76/80/88/90 inches | 
| Front tread size | 60/68/72/76/80/88/90 inches | 
| Turning radius | - | 
Horsepower and engin specs
| Engine capacity | 403 ci or 6.6 L | 
| Cylinders | 6 cylinders | 
| Engine power | 210 hp or 156.6 kW | 
| Engine RPM | 2100 (rpm) | 
| Torque | - | Torque RPM | - | 
| Fuel type | diesel | 
| Fuel injection | - | 
| Fuel tank size | 85 gal or 321.7 L | 
| Oil capacity | - | 
| Oil change | - | 
| Starter motor | - | 
| Starter volts | 12 V | 
| Parts And Accessories | Challenger 35 Parts | 
| Batteries number | - | 
| Batteries voltage | 12 V | 
| Battries Amps | - | 
| Cold Amps | - | 
| Ground force | negative | 
| Charging system | alternator | 
| Charging Volts | - | 
| Charging Amps | - | 
| Trans system | - | 
| Trans type | creeper | 
| Trans gears | 32 forward and 18 reverse | 
| Clutch system | - | 
| Wheel drive | crawler | 
| Final drive | - | 
| Steering | differential power | 
| Braking system | wet disc | 
| Cabin type | Cab standard with air-conditioning | 
| Differentiel lock | - | 
| System | variable-displacement load-sensing pressure-compensated | 
| Valves | 3 or 4 | 
| Pump flow | 31.2 gpm or 118.1 lpm | 
| SVC flow | - | 
| Steering flow | - | 
| Tank capacity | - | 
| Hydraulic pressure | 2750 psi or 189.6 bar | 
| Max flow | - | 
| Drawbar type | - | 
| Claimed power | 150 hp or 111.9 kW | 
| Drawbar horsepower | - | 
| Fuel consumption | - | 
| Pulling power | - | 
| Claimed power | 175 hp or 130.5 kW | 
| Real power | - | 
| Engine @RPM | 1000@1900 (rpm) | 
| PTO Clutch | electro-hydraulic wet disc | 
| Rear PTO | independent | 
| Rear PTO RPM | 1000 (rpm) | 
| Front PTO | - | 
| Front PTO RPM | - | 
| Mid PTO | - | 
| Mid PTO RPM | - | 
| Fuel consumption | - | 
| Hitch system | draft control | 
| Rear hitch | III/II | 
| Rear hitch lift | 12500 lbs or 5670 kg | 
| Front hitch | - | 
| Front hitch lift | - | 
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Useful links and guides ....
- John Deere provided us with the latest version of its 8420 service repair manual
 - Find All mechanical and electrical parts and accessories of John Deere 8420 farm-tractor here
 
- Get your Challenger 35 manual book version
 - Cabine, electrical And mechanical parts for Challenger 35 farm-tractor here