C5524276 Diesel Fuel Filter is a high-efficiency fuel water separator cartridge applied on ISL9.5 diesel engine fuel supply circuit. It filters rust, grit and tiny solid impurities in diesel, and separates free water mixed in fuel, avoiding water erosion on precision injectors and fuel transfer pump. This aftermarket replacement filter solves insufficient fuel flow, power drop under heavy load and injector abnormal wear caused by filter clogging, medium damage and water accumulation. Reliable filtration keeps fuel pressure stable and protects fuel injection assembly for heavy-duty long-haul freight trucks.
Product Advantages Made of multi-layer hydrophobic composite filter paper with large dirt holding capacity. Reinforced inner support frame prevents filter core collapse under fuel pressure fluctuation. The filter material has good tolerance to diesel and fuel additives. Every filter is inspected for sealing integrity before shipment, OEM size matches filter housing for convenient replacement during routine maintenance.
| Item | Parameter |
|---|---|
| Part Number | C5524276 |
| Product Name | Diesel Fuel Filter |
| Matching Engine | ISL9.5 |
| Material | Multi-Layer Filter Paper + Reinforced Support Frame |
| Feature | Fuel Filtration, Water Separation, Protect Injectors |
| MOQ | Negotiable |
| Application | Engine Fuel Supply System Filter Housing |
Applicable Models Fit for heavy commercial vehicles equipped with ISL9.5 diesel engine, widely used for intercity bulk cargo and heavy load transportation.




FAQ
Q1: What will happen if water accumulates inside the fuel filter and enters injectors?
A1: Water causes corrosion, cavitation inside injector nozzle, poor atomization and power loss.
Q2: Why is air bleeding necessary after installing this new fuel filter?
A2: Air pockets block fuel supply, leading to hard starting, rough idle and unstable power.
Q3: What regular maintenance should be performed on this filter?
A3: Periodically drain water from the water drain port following maintenance interval.