Soft Caterpillar 1869903-00, rating 375HP@1800rpm; 1450LB-FT@1200rpm; 434HP@1800rpm; 1649LB-FT@1200rpm. 375/435HP 1450/1650 MT | | Low NOx Kit Software | | 5EK67194-up | | SOFTWARE DATE CODE: Dec99 | | INTERLOCK CODE: 381 | | Rating#1: | | 375HP@1800rpm, | | 1450LB-FT@1200