Soft Caterpillar 5667041-00. C280-16 PROP DUAL ECM 1000RPM 4920bkw, BR36475, WO46908, CEAL_T4F_BETA_2.14.2, CE_T4F_PROD_1.5.2, BE_T4F_PROD_1.5.2, Jan 8 2019 C280 Tier 2 Engine Software