| Model | 31V | 31X | 31Z | 33A |
| Year | 2011 | 2011 | 2011 | 2011 |
| Brand | Serrano | Serrano | Serrano | Serrano |
| Model | 31V | 31X | 31Z | 33A |
| Chassis | Workhorse DSL | Workhorse DSL | Workhorse DSL | Workhorse DSL |
| Engine | MaxxForce Diesel | MaxxForce Diesel | MaxxForce Diesel | MaxxForce Diesel |
| Chassis Workhorse Maxxforce Diesel | 6.4L V8 | 6.4L V8 | 6.4L V8 | 6.4L V8 |
| Chassis Workhorse Maxxforce Diesel GVWR | 20,500 | 20,500 | 20,500 | 22,000 |
| Chassis Workhorse Maxxforce Diesel GCWR | 26,000 | 26,000 | 26,000 | 26,000 |
| Wheelbase | 200" | 200" | 190" | 218" |
| Exterior Length | 32' 10" | 32' 10" | 32' 1" | 34' 3" |
| Exterior Height | 11' 5" | 11' 5" | 11' 5" | 11' 5" |
| Exterior Width | 101" | 101" | 101" | 101" |
| Interior Height | 80" | 80" | 80" | 80" |
| Awning Size | 17' | 17' | 17' | 17'/16' |
| Fuel | 40 gal | 40 gal | 40 gal | 40 gal |
| LPG | 96.4 lbs | 96.4 lbs | 96.4 lbs | 40.9 lbs |
| Fresh Water | 50 gal | 50 gal | 50 gal | 50 gal |
| Black Water | 36 gal | 39 gal | 39 gal | 36 gal |
| Gray Water | 56 gal | 46/22 gal | 46 gal | 56 + 21 gal |
| Water Heater | 6 gal | 6 gal | 6 gal | 6 gal |
| Furnace | 35,000 BTU | 35,000 BTU | 35,000 BTU | 35,000 BTU |
| Exterior Storage Capacity | 150 cu ft | 81 cu ft | 151 cu ft | 119.3 cu ft |
