| Speicfications | GB24SL | GB40SL | GB32SL | GB50SL |
| Engine model | 1003G | 1003TG | 1004G | 1004TG |
| Number of cylinder | 3 | 3 | 4 |
| Induction System | natural aspirated | turbo charged | natural aspirated | turbo charged |
| Type | water cooled, in line, 4-stroke, dry cylinder liner, direct injection |
| Capacity(L) | 3 | 3 | 3.99 |
| Bore*Stroke(mm) | 100*127 |
| Capacity of Lubrication system(L) | 7.48 | 7.48 | 8.1 | 8.5 |
| Capacity of coolant(L) | 18 | 19.1 | 21 | 22.2 |
| Diesel engine Max.output/ speed | (kw/1500rpm) | 30 | 44 | 44 | 72.3 |
| (kw/1800rpm) | 36 | 55 | 48 | 83.2 |
| Diesel engine continuance output/speed | (kw/1500rpm) | 28 | 40 | 40 | 65.7 |
| (kw/1800rpm) | 33 | 50 | 44 | 75.6 |
| Outputof generator(kw/1500) | cont. | 27 | 40 | 34 | 56 |
| Standby | 30 | 44 | 38 | 61 |
| Outputof generator(kw/1800) | con.t | 27 | 40 | 37 | 64 |
| Standby | 30 | 44 | 41 | 70 |
| Fuel consumption(g/kw-h) | ≤210 | ≤205 | ≤210 | ≤205 |
| radiator area(m2) | 17 | 19 | 19.7 | 26.94 |
| electric system | standard scheme 24V ,optional 12V |
| Alternator model(stamford) | BCI184J | UCI224D | UCI224C | UCI224E |
| Rated output(kw) | 24 | 40 | 34 | 50 |
