| Model | Date of manufacture | Power, kWt | Power HP | Volume cc | Type of construction |
|---|---|---|---|---|---|
| GMC G15 Extended Cargo Van (US) 4.1 | 09.1975 - 12.1978 | 75 | 102 | 4097 | Box |
| GMC G15 Extended Cargo Van (US) 5.7 | 09.1974 - 12.1977 | 108 | 147 | 5735 | Box |
| GMC G15 Extended Cargo Van (US) 6.6 | 09.1975 - 12.1976 | 131 | 178 | 6555 | Box |
| GMC G15 Extended Cargo Van (US) 5.0 | 09.1976 - 12.1978 | 108 | 147 | 4998 | Box |