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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