FS1098 Fuel Filter Water Separator PCV Valve for Cummins B6.7 ISL L9

The FS1098 Fuel Filter / Water Separator PCV Valve for Cummins Engines is a dual-function filtration and ventilation component engineered to protect modern Cummins diesel engines from fuel contamination and moisture while supporting proper crankcase pressure regulation. Designed for Cummins B6.7, ISL, and L9 engines, this assembly plays a critical role in maintaining fuel system integrity and overall engine efficiency.

The FS1098 effectively separates water and particulate contaminants from diesel fuel before it reaches sensitive components such as injectors and high-pressure fuel pumps. By preventing corrosion, injector wear, and fuel system damage, it helps ensure smooth engine operation, consistent power delivery, and long service intervals.

In addition to fuel filtration, the integrated PCV (Positive Crankcase Ventilation) function assists in managing crankcase vapors, reducing oil mist buildup, and maintaining stable crankcase pressure. Constructed from high-quality filtration media and a durable housing, the FS1098 is designed to withstand harsh operating conditions, vibration, and extended duty cycles common in commercial, industrial, and heavy-duty diesel applications.

This fuel filter and water separator is ideal for routine maintenance, fleet servicing, preventative engine care, and replacement during scheduled service intervals to protect expensive fuel system components and maintain engine reliability.

✔ PRODUCT FEATURES & COMPONENTS

• Fuel filter and water separator assembly

• Integrated PCV valve functionality

• Removes water, dirt, and fuel contaminants

• Protects injectors and high-pressure fuel pump

• High-efficiency filtration media

• Durable housing for heavy-duty diesel operation

• Supports proper crankcase ventilation

• Direct-fit replacement — no modification required

✅ ENGINE COMPATIBILITY

• Cummins B6.7

• Cummins ISL

• Cummins L9

✅ VEHICLE & EQUIPMENT APPLICATIONS

• Commercial trucks and buses

• Construction and industrial equipment

• Agricultural machinery

• Generator sets

• Fleet and vocational vehicles

• Off-highway and heavy-duty diesel applications

✅ KEY FEATURES & BENEFITS

• Removes harmful water and debris from fuel

• Improves fuel system reliability and injector life

• Helps prevent corrosion and fuel system damage

• Supports stable crankcase pressure control

• Enhances engine performance and efficiency

• OEM-grade durability for extended service intervals