FS20217 Fuel Water Separator is an integrated coalescing filtration assembly matched for ISF3.8 diesel engine fuel supply circuit. It uses hydrophobic multi-layer filter media to intercept rust, carbon particles and solid contaminants in diesel, meanwhile gathering free water mixed in fuel into the bottom water storage cavity for discharge. This aftermarket replacement separator resolves insufficient fuel flow, power drop under heavy load and injector nozzle corrosion caused by filter blockage, filter medium damage and excessive water entering fuel injection components. Stable fuel purification keeps injection pressure normal and protects precision injectors and transfer pump for light commercial trucks running frequent urban delivery and short-haul freight routes.

Product Advantages High-performance coalescing filter paper has high contaminant holding capacity and reliable water separation effect. Reinforced inner support skeleton prevents filter element deformation under fuel pressure fluctuation. Equipped with drain valve for convenient water draining during daily inspection. Every separator is tested for sealing and separation efficiency before shipment, OEM thread and sealing gasket support direct spin-on installation.

Applicable Models Compatible with light commercial vehicles equipped with ISF3.8 diesel engine, widely used in city logistics and township cargo delivery fleets.

FAQ

Q1: What fault will occur when the fuel water separator is clogged seriously?
A1: Fuel supply is restricted, engine power decreases and it is easy to stall when climbing hills.
Q2: Why is air bleeding necessary after replacing this separator?
A2: Air trapped inside leads to hard startup, rough idle and unstable power output.
Q3: What routine maintenance should be done?
A3: Regularly drain accumulated water from the drain port according to the maintenance schedule.