| 2638S /6×4/3450+1450/Long Cab/LHD |
| Dimension | 6935*2495*3340mm |
| Approaching angle/Departure angle | 20/64° |
| Overhang(front/rear) | 1410/625mm |
| Wheel base | 3450+1450mm |
| Max speed | 100km/h |
| Curb weight | 9200kg |
| Max towing weight | 39670kg |
| Max loading on fifth wheel, Permitted(kg) | 15670kg |
| Slope climbing capability | Max.40% |
| Engine | Model | WD6115.38, Euro II, water-cooled,four strokes,6 cylinders in line,turbocharged, directly injection |
| Displacement | 9.726L/Diesel |
| Stroke | 126/130mm |
| Max. power | 309/2200 (kw/rpm) |
| Max.torque | 1750/1300-1400(Nm/rpm) |
| Emission stantard | EuroⅢ |
| Fuel tanker capacity | 400L |
| Clutch | 430, Single dry frictional disc,Hydraulic boosting |
| Gearbox | 12JS200T, mechanism,12 forward gears,2 reverse gear, manual operated, with synchronizer |
| Gear ratio of gear box | 15.53/12.08/9.39/7.33/5.73/4.46/3.48/2.71/2.10/1.64/1.28/1.00 R:14.86/3.33 |
| Suspension system | Front | Non-free standing leaf spring,telescopic shock absorber with stablizer bar suspension , 13pcs |
| Rear | Non-free standing stablization spring, balance suspension system, 13pcs |
| Brake system | Service brake | Brake gap can be adjusted automatically, double circulation air brake system |
| Assistant brake | Engine exhaust brake |
| Park brake | Potential springs pressing on middle and rear wheels |
| Steering system | TAS85,whole circulation in ball, hydraulic booster |
| Frame | Fish belly shape, variable width, variable sections |
| Model | JOST 90 single direction |
| Height of fifth wheel(mm) (unload) | 1410 |
| Radius of front gap (mm) | 2300 |
| Radius of rear slew (mm) | 2600 |
| Front axle (Mercedes Technology) | Double-shoe pneumatic brake, non-driving steering axle |
| Middle and Rear axle (Mercedes Technology) | Double-shoe pneumatic brake, ductile casting casing, with hub redactor, double reduction driving axle |
| Tyre | 12.00-R20 |
| Electrical system | Battery | 2X12V/135Ah |
| Generator | 28V-35A |
| Starter | 5.4Kw/24V |
| Cabin | NG80B Long-Flat roof cabin with single sleeper
Full steel skeleton structure, covered with double layer steel plate;
Can be tipped forwardly;
High back seat for driver;Electric lifting window ;
With inner A/C |
