Description
- Model: FloMax FNBL-K5 Piston Assembly
- Compatibility: FNBL Ball Lock series 1.5″ diesel fuel nozzles (standard and high-flow variants)
- Design:
- Removable, fully assembled OEM piston module
- Includes factory-installed piston, piston spring, seals, bushings, and O-rings
- Piston is Delron polymer-bushed, stainless steel for durability and self-lubrication
- Double fluorosilicone O-rings and Viton seals for all-weather sealing and longevity
- Function:
- Restores rapid, positive shutoff and leak-free fueling actuation
- Allows field replacement or rebuild without special tools
- Applications: Routine service, field rebuilds, and emergency repair for FNBL nozzles in high-use or severe environments (mining, construction, industrial, fleet fueling)
The FNBL-K5 piston assembly is the direct OEM solution for restoring full actuation and optimal service intervals, designed for rapid drop-in installation and long-term field performance.






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