EGR cooler before and after on a 2019 Cummins ISB 6.7 Box truck with 97, 574 miles

EGR cooler before and after on a 2019 Cummins ISB 6.7 Box truck with 97, 574 miles

EGR cooler before and after on a 2019 Cummins ISB 6.7 Box truck with 97, 574 miles