C5310808 Fuel Water Separator is an integrated fuel purification assembly for ISD6.7 diesel engine fuel system. It adopts hydrophobic coalescing filter media to trap solid impurities such as rust, carbon and grit, while separating free water mixed in diesel and gathering water into the bottom water collection chamber. This aftermarket replacement separator solves fuel supply blockage, power loss under load and injector nozzle corrosion caused by filter clogging, medium damage and excessive water entering injection parts. Efficient fuel-water separation stabilizes injection pressure and protects precision fuel injectors and transfer pump for medium-heavy trucks used in municipal engineering and regional long-haul freight.
Product Advantages High-sensitivity coalescing filter layer achieves stable water separation efficiency and high dirt holding capacity. Built-in drain valve facilitates regular water draining. Reinforced internal support structure prevents filter core collapse under fluctuating fuel pressure. Each separator is tested for sealing and water separating performance before shipment, OEM mounting size supports direct replacement during routine maintenance.
| Item | Parameter |
|---|---|
| Part Number | C5310808 |
| Product Name | Fuel Water Separator |
| Matching Engine | ISD6.7 |
| Material | Multi-Layer Hydrophobic Composite Filter Paper + Steel Housing |
| Feature | Fuel Filtration, Water Separation, Protect Fuel Injection Parts |
| MOQ | Negotiable |
| Application | Engine Fuel Supply System Purification Assembly |
Applicable Models Compatible with medium and heavy commercial vehicles equipped with ISD6.7 diesel engine, widely used for construction hauling and intercity logistics transportation.



FAQ
Q1: What symptom shows that the fuel water separator is blocked?
A1: Engine power drops under heavy load, and the engine may stall when climbing slopes.
Q2: Why must we bleed air after installing this water separator?
A2: Air trapped inside causes difficult startup, rough idle and unstable engine power.
Q3: What regular maintenance action is required?
A3: Periodically drain accumulated water from the drain port following factory maintenance cycle.