Hirobo HI2509012 2 x 11.6 Parallel Pin Replacement for RC Helicopters  [HI2509012]

Compact replacement pin for linkages

This is a parallel pin for RC helicopters, referenced by model HI2509012 and also listed under part number 2509-012; it is provided as a spare for routine repairs. The dimensional tag "2 x 11.6" is the principal spec to match when confirming part fit.

The pin operates as a locating element within linkage assemblies and small pivot points on the rotor system. It is intended to replace pins of the same "2 x 11.6" dimension to maintain correct control geometry and alignment.

To fit the pin, align the hole in the linkage or bracket, slide the pin into place, and secure it with the original retainer or clip used by the airframe. After fitting, inspect for lateral play and ensure rotor tracking remains within expected limits.

Although a minor component, the pin contributes to correct linkage geometry which affects cyclic input and tail responsiveness. When replacing pins, also check adjoining parts for wear or damage that could compromise performance.