Soft Caterpillar 1919929-00, rating 455 HP @ 1800RPM; 454HP@2100rpm; 1550LB-FT@1200rpm. 455 HP @ 1800RPM, 1550 ft-lb RV | | Low NOx Kit Software | | SOFTWARE DATE CODE: Apr00 | | INTERLOCK CODE: 320 | | Rating#1: | | 454HP@2100rpm, | | 1550LB-FT@1200rpm |