# P0420 on the 2019 Mack Anthem

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0420

- [10209939](https://open.wenmarpro.com/bulletins/10209939), 2022-04-05: Mack Chassis \- Diagnostic Trouble Code \( DTC \) P0420 Illuminating The Malfunction Indicator Lamp \(MIL\) \- US17\+OBD16 And US17\+OBD18 \(GHG17\) Emissions \(Common Rail Fuel System\) \- Commonly Model Years 2018 And 2019
- [10204011](https://open.wenmarpro.com/bulletins/10204011), 2021-12-07: Mack Chassis \- Diagnostic Trouble Code \( DTC \) P0420 Illuminating The Malfunction Indicator Lamp \(MIL\) \- US17\+OBD16 And US17\+OBD18 \(GHG17\) Emissions \(Common Rail Fuel System\) \- Commonly Model Years 2018 And 2019
- [10142709](https://open.wenmarpro.com/bulletins/10142709), 2018-07-16: Mack Chassis \- Diagnostic Trouble Code \( DTC \) P0420 Illuminating The Malfunction Indicator Lamp \(MIL\) \- US17\+OBD16 And US17\+OBD18 \(GHG17\) Emissions \(Common Rail Fuel System\) \- Commonly Model Years 2018 And 2019
- [10141396](https://open.wenmarpro.com/bulletins/10141396), 2018-06-18: Mack Chassis \- Diagnostic Trouble Code \( DTC \) P0420 Illuminating The Malfunction Indicator Lamp \(MIL\) \- US17\+OBD16 And US17\+OBD18 \(GHG17\) Emissions \(Common Rail Fuel System\) \- Commonly Model Years 2018 And 2019
- [10138718](https://open.wenmarpro.com/bulletins/10138718), 2018-05-29: Mack Chassis \- Diagnostic Trouble Code \( DTC \) P0420 Illuminating The Malfunction Indicator Lamp \(MIL\) \- US17\+OBD16 And US17\+OBD18 \(GHG17\) Emissions \(Common Rail Fuel System\) \- Commonly Model Years 2018 And 2019