The Baldwin PF9804 was specifically designed to work with Detroit Diesel DD13 & DD15 Engines. Fuel/Water Separator Element ---Extensive testing to ensure proper fit, form & function within the OE housing ---Designed to meet or exceed OE Standards ---Post Seals for application reliability and ease of service ---Spiral Seamed Centertube prevents collapse due to sudden pressure changes Application Summary: Freightliner Cascadia, Columbia, Business Class M2 Trucks with Detroit Diesel DD13 & DD15 Engines.