Direct OEM Replacement: Perfect fit for part numbers A0000905051, FS20083, PF46145, and A485007. Installs easily with no modifications required. Broad Engine Compatibility: Specifically engineered for Detroit Diesel DD13, DD15, and DD16 engines. Heavy-Duty Applications: Ideal for heavy-duty commercial vehicles, including Freightliner and Western Star diesel trucks. Maximum Engine Protection: High-efficiency filter effectively separates water and traps harmful contaminants, extending the lifespan of your fuel injectors and fuel pumps. Reliable Performance: Built to withstand the demanding conditions of heavy-duty diesel fuel systems, ensuring smooth and efficient engine operation.