Filler Cap Flush Mount Poly

The Filler Cap Flush Mount Poly from ATL Fuel Cells is a precision fuel system component engineered for aircraft, auxiliary fuel tank, and specialty vehicle applications where space is critical and reliability is non-negotiable. This twist-on cap assembly is designed for operators who demand secure fuel containment without sacrificing mounting profile or accessibility. Built to aerospace standards, the flush remote mount configuration integrates seamlessly into confined installations where traditional fuel caps create clearance conflicts or operational interference.

Constructed from a hybrid steel and plastic assembly with zinc and red finishes, this cap features a 12-bolt flange mounting system that ensures vibration resistance and pressure integrity during high-stress operations. The aircraft-style design incorporates proven sealing geometry to prevent fuel vapor loss and contamination ingress—critical in tactical and airborne environments where fuel system failure is mission-ending. The flush mounting profile keeps the cap recessed within the fuel port, reducing snag hazards and external damage exposure while maintaining rapid access for refueling operations. At 0.94 lbs and measuring 5.4 x 2.65 x 5.5 inches, this assembly delivers substantial durability in a compact footprint suitable for weight-sensitive platforms.

Military aviation programs, law enforcement tactical units, and auxiliary fuel system manufacturers rely on this cap for drop tank, bladder tank, and auxiliary reservoir installations where performance cannot be compromised. The 12-bolt flange accommodates standard fuel system ports and integrates directly into existing tank mounting bosses without modification. Installation requires basic hand tools and torque verification to specification—field-serviceable by trained technicians. This component is ideally suited for personnel carriers, airframe fuel systems, and expeditionary fuel storage where sealed, compact fuel access is mandatory.