Hirobo HRB-0404761 Replacement GE Fuel Tank Cap for Eagle / Freya / EX / SX  [HRB-0404761]

Secure GE gasoline tank cap for Hirobo helicopters

The Hirobo HRB-0404761 GE gasoline tank cap is a direct replacement part for fuel tanks fitted to Hirobo Eagle, Freya, EX and SX helicopter models. This cap offers a reliable seal at the tank opening to support regular maintenance and tuning of the fuel system.

Compatibility is limited to the listed helicopter families; check your tank neck diameter and thread pattern before ordering. Installation is simple: seat the cap on the tank opening, tighten until fully seated, and perform a static leak check. Periodic inspection of the cap and tank mouth helps ensure steady fuel delivery during bench tuning and preflight checks.

When setting up the engine, a correctly installed tank cap helps stabilize fuel flow and reduces variations in engine response during throttle mapping and needle adjustments. Replace any caps showing wear or damaged sealing surfaces as part of scheduled maintenance to avoid inconsistent fuel pressure during operation.