Delphi Diesel Fuel Filter (HDF521) Spin-on Filter

The Delphi Diesel Fuel Filter (HDF521) is OE-engineered and tested to fit right the first time, ensuring long-lasting performance.

A diesel fuel filter is a component in a vehicle's fuel system designed to remove impurities and contaminants from the diesel fuel before it reaches the engine. Diesel fuel filters play a crucial role in maintaining the performance and reliability of a diesel engine by preventing harmful particles from entering the fuel injection system.

Delphi is a well-known OEM supplier, meaning that their components are often used as original equipment in vehicles by various automakers.