HPI HD Idler Gear (27T)

The HPI HD Idler Gear (27T) is a genuine replacement drivetrain component from HPI, designed to help keep your RC gearbox running smoothly. The 27‑tooth layout sits within the transmission to transfer power and maintain a consistent gear mesh.

Listed as part number HPI-120113, this heavy‑duty idler gear is intended for use in applications that specify a 27T idler. Choosing an original HPI component helps ensure correct fitment and dependable performance in your model’s drivetrain.

Suggested compatibility includes HPI vehicles that call for a 27‑tooth idler gear; please refer to your model’s manual or parts list to confirm the required part number. Replacing worn drivetrain gears can reduce noise and help maintain reliable power delivery.