Soft Caterpillar 5667054-00. C280-16 PROP DUAL ECM 1000RPM 5650bkw,BR36494,WO46919,CEAL_T4F_BETA_2.14.2, CE_T4F_PROD_1.5.2, BE_T4F_PROD_1.5.2, JAN 2 2019 C280 Tier 2 Engine Software