Soft Caterpillar 1869910-00, rating 454HP@2100rpm; 1649LB-FT@1200rpm; 454HP@1800rpm; 1649LB-FT@1200rpm. 455 HP 1650 PT (1996) Truck | | Low NOx Kit Software | | 5EK67194-up | | SOFTWARE DATE CODE: Dec99 | | INTERLOCK CODE: 357 | | Rating#1: | | 454HP@2100rpm, | | 1649LB-FT