Soft Caterpillar 5667038-00. C280-12 DUAL ECM 50hz 1000RPM 3700bkw,BRNo. 36345,WO 46834,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