Soft Caterpillar 1869901-00, rating 375HP@1800rpm; 1450LB-FT@1200rpm; 434HP@1800rpm; 1550LB-FT@1200rpm. 435 HP Multi-Torque (1996) Truck | | Low NOx Kit Software | | 5EK67194-up | | SOFTWARE DATE CODE: Dec99 | | INTERLOCK CODE: 367 | | Rating#1: | | 375HP@1800rpm, | | 1450