Soft Caterpillar 5667046-00. C280-12 PROP DUAL ECM 1000RPM 3700bkw,BR36479,WO46906,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