The Fleetguard FS20000 Fuel Water Separator is built for heavy-duty trucks, buses, and industrial machinery where water separation and improved fuel lubricity are essential. This spin-on fuel filter/doser effectively removes water and emulsified water from your fuel system, ensuring optimal engine performance and longevity while supporting low-lubricity fuels.

Key Features

• 5-micron filtering capability with 95%–98.7% water/emulsified water separation
• Stratapore Media that continuously releases a lubricity-enhancing additive
• Compatible with Tier 2 QSB and low-lubricity fuels
• Cross-reference part numbers: Cummins 3966406, service part 3938161S

Technical Specifications

• Height: 249 mm (approximately 9.8 inches)
• Outer Diameter: 93 mm (approximately 3.66 inches)
• Weight: 0.97 kg (approximately 2.14 lbs)

Why Choose This Filter?

Enjoy enhanced engine protection and longer filter life with this advanced design. The FS20000 not only minimizes friction and wear but also offers an easy spin-on installation—a perfect solution for both professional fleets and dedicated enthusiasts. For more Fleetguard products, visit our Fleetguard Collection. Alternatively, check out our comprehensive selection of fuel water separators in our Fuel/Water Separators Collection for additional high-performance solutions.