Soft Caterpillar 1925319-00, rating 450HP@2100rpm; 1550LB-FT@1200rpm; 450HP@2100rpm; 1649LB-FT@1200rpm. 1998 MY 450HP 1550 or 1650 lb-ft UPRATE | | Low NOx Kit Software | | SOFTWARE DATE CODE: Apr00 | | INTERLOCK CODE: 452 | | Rating#1: | | 450HP@2100rpm, | | 1550LB-FT@1200rp