Model Helicopter Collar 3 x 8 x 15 HI2521128 by Hirobo  [HI2521128]

Part overview — 3 x 8 x 15 collar

The Hirobo collar with code HI2521128 and the 3 x 8 x 15 marking is designed as a small locating element for RC helicopter models. It secures and locates rotating or sliding parts where precise shaft placement is required.

In tuning and assembly contexts the collar maintains correct positioning between connected components in linkages or drivetrains. Installers should confirm the marked dimensions match the target shaft before fitting and follow the model's original assembly approach for securing the collar.

Supplied as a general helicopter spare rather than a kit item, this collar should be cross-checked against the model's spare parts list to ensure fitment and compatibility.