Soft Caterpillar 1925343-01, rating 549HP@2100rpm; 1849LB-FT@1200rpm. 1998MY, 550HP 1850lb-ft | | 2300 RPM HIIDLE | | Low NOx Kit Software | | SOFTWARE DATE CODE: Apr00 | | INTERLOCK CODE: 443 | | Rating#1: | | 549HP@2100rpm, | | 1849LB-FT@12