Soft Caterpillar 6044254-00. C280-12 PROP NAPIER TURBO 1000RPM 3700bkw,BR41759,wo52998r1,CEAL_T4F_BETA_2.14.2,CE_T4F_PROD_1.5.2,BE_T4F_PROD_1.5.2, SEP 1 2020 C280 Tier 2 Engine Software