Soft Caterpillar 5667039-00. C280-12 DUAL ECM DEP 60hz 900RPM 3460bkw,BRNo.36346,WO 46901,CEAL_T4F_BETA_2.14.2, CE_T4F_PROD_1.5.2, BE_T4F_PROD_1.5.2, DEC 17 2018 C280 Tier 2 Engine Software