SX Root End Replacement HI0404507 for Rotor and Tail Linkages - HIROBO  [HI0404507]

Compatibility and interchange notes

The HIROBO HI0404507 SX root end is an aftermarket replacement designed to fit the root position of rotor linkages on compatible helicopter assemblies. It provides the mounting interface between the rotorhead link and the tail or servo linkage, allowing proper transmission of control inputs.

Marked as compatible with Eagle, Freya, EX and SX platform parts, this root end is suitable where a like-for-like linkage endpoint is needed during maintenance or crash repair. Confirm rod end sizing and retaining hardware compatibility before installation to ensure correct fit.

Fitting guidance: insert the root end into the corresponding linkage rod end and secure using the original fasteners, then check for smooth pivoting and minimal lateral play. Reassess collective and tail linkage geometry after replacement to keep handling characteristics consistent.