2021 Model Year |
| EPA Family Name | Engine Models | Power Category (kW) | EPA Tier | Certificate |
| MDZXL02.2110 | TCD2.2L3 | 19-56 | 4 | EPA CARB |
| MDZXL02.2111 | TD2.2L3 | 19-56 | 4 | EPA CARB |
| MDZXL02.2112 | D2.2L3 | 8-19 | 4 | EPA CARB |
| MDZXL02.2114 | TCD2.2L4 | 19-56 | 4 | EPA CARB |
| MDZXL02.2115 | TD2.2L3 | 19-56 | 4 | EPA CARB |
| MDZXL02.9016 | TCD2.9L4 | 37-56 | 4 | EPA CARB |
| MDZXL02.9020 | TD2.9L4 | 37-56 | 4 | EPA CARB |
| MDZXL02.9021 | D2.9L4 | 19-37 | 4 | EPA CARB |
| MDZXL02.9118 | TD2.9L4 | 37-56 | 4 | EPA CARB |
| MDZXL02.9119 | TCD2.9L4 | 37-56 | 4 | EPA CARB |
| MDZXL03.6018 | TCD3.6L4 | 37-56 | 4 | EPA CARB |
| MDZXL03.6055 | TCD3.6L4 | 56-130 | 4 | EPA CARB |
| MDZXL03.6060 | TCD3.6L4 | 56-130 | 4 | EPA CARB |
| MDZXL03.6063 | TCD3.6L4 | 37-56 | 4 | EPA CARB |
| MDZXL03.6121 | TD3.6L4 | 37-56 | 4 | EPA CARB |
| MDZXL03.6122 | TCD3.6L4 | 37-56 | 4 | EPA CARB |
| MDZXL03.6123-039 | TCD3.6L4 | 56-130 | 4 | EPA CARB |
| MDZXL04.1056 | TCD4.1L4 | 75-130 | 4 | EPA CARB |
| MDZXL06.1048 | TTCD6.1L6 | 130-560 | 4 | EPA CARB |
| MDZXL06.1049 | TCD6.1L6 | 130-560 | 4 | EPA CARB |
| MDZXL06.1050 | TCD6.1L6 | 130-560 | 4 | EPA CARB |
| MDZXL06.1059 | TCD6.1L6 | 75-130 | 4 | EPA CARB |
| MDZXL06.1061 | TCD6.1L6 | 75-130 | 4 | EPA CARB |
| MDZXL07.8047 | TTCD7.8L6 | 130-560 | 4 | EPA CARB |
| MDZXL07.8051 | TCD7.8L6 | 130-560 | 4 | EPA CARB |
| MDZXL15.9058 | TCD16.0V8 | 130-560 | 4 | EPA CARB |