Soft Caterpillar 1925344-01, rating 549HP@2100rpm; 1849LB-FT@1200rpm. 1998MY, 550HP (1850) 2300 HIIDLE | | Low NOx Kit Software | | SOFTWARE DATE CODE: Apr00 | | INTERLOCK CODE: 444 | | Rating#1: | | 549HP@2100rpm, | | 1849LB-FT@1200rpm |