This page provides a detailed comparison of the specifications for the Challenger MT485D and the John Deere 6420.
| Challenger MT485D | John Deere 6420 | |
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| Engine | ||
| Engine Manufacturer | AGCO Power Diesel | John Deere |
| Engine Model | 49AWI | PowerTech 4045HL070 |
| Engine Cooling Type | Liquid-Cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Turbocharged Air-to-Air Intercooled | Turbocharged |
| Engine Cylinders | 4 | 4 |
| Engine Displacement Value | 299 ci (4.9 L) | 276 ci (4.5 L) |
| Engine Rated Rpm | 2200 | 2300 |
| Engine Power Output Value | 137 hp (102.1 kW) | 110 hp (82.0 kW) |
| Transmission | ||
| Transmission Type | CVT (Continuously Variable Transmission) | Fully synchronized |
| Transmission Forward Gears | Infinite within two mechanical ranges (Low 0-18 mph, High 0-25 mph) | 12 |
| Transmission Reverse Gears | Infinite within two mechanical ranges (Low 0-11 mph, High 0-18 mph) | 4 |
| Dimensions | ||
| Length Value | - | 162.7 |
| Width Value | - | 61.8 |
| Operating Weight Value | 15930 lb (7226 kg) | 10472 lb (4750 kg) |
| Miscellaneous | ||
| Chassis | - | 4x4 MFWD 4WD |
| Drive Type | - | 4WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Category | III/II | II |
| Hitch Position | Rear | - |
| Hitch Capacity Value | 8520 lb (3865 kg) | 4741 lb (2150 kg) |
| Hydraulic System Type | Closed Center Load Sensing (CCLS) | Closed center pressure flow compensated |
| Operator Station Type | - | Open |
| Starter Type | Electric | Electric |
