This page provides a detailed comparison of the specifications for the Challenger MT685D and the Challenger MT845C.
| Challenger MT685D | Challenger MT845C | |
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| Engine | ||
| Engine Manufacturer | Sisu Diesel | Caterpillar |
| Engine Model | - | C15 ACERT |
| Engine Cooling Type | Liquid-cooled with thermostat and variable speed fan | Liquid-cooled |
| Engine Fuel Type | No. 2 Diesel | Diesel |
| Engine Induction Type | Turbocharged with air-to-air intercooler | Turbocharged and aftercooled |
| Engine Cylinders | 6 | 6 |
| Engine Displacement Value | 514 ci (8.4 L) | 928 ci (15.2 L) |
| Engine Rated Rpm | 2100 | 2100 |
| Engine Power Output Value | 333 hp (248.5 kW) | 443 hp (330.0 kW) |
| Transmission | ||
| Transmission Type | CVT with two mechanical ranges | Full power shift |
| Transmission Forward Gears | Infinite | 16 |
| Transmission Reverse Gears | Infinite | 4 |
| Dimensions | ||
| Length Value | 215.7 | 270 |
| Operating Weight Value | 25365 lb (11505 kg) | 43380 lb (19677 kg) |
| Miscellaneous | ||
| Chassis | 4WD | Tracklayer-rubber tracked |
| Drive Type | 4WD | - |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | Cat III | - |
| Hitch Category | Cat III | III/IVN |
| Hitch Position | Rear | - |
| Hydraulic System Type | Closed center load sensing (CCLS) | Closed center pressure-flow compensated |
| Operator Station Type | Cab | - |
| Starter Type | Electric | Electric |
