Hpi Racing 86874 Idler Shaft 5x40mm Firestorm 10T

Hpi Racing 86874 Idler Shaft 5x40mm Firestorm 10T

This is a genuine HPI Racing 5x40mm idler shaft for the Firestorm 10T. The idler shaft supports the idler gear in the transmission, keeping gear mesh aligned so power flows smoothly and quietly.

A worn or grooved shaft introduces play that accelerates gear wear, so replacing it with this factory-spec part during transmission service is smart preventive maintenance.

• Genuine HPI Racing replacement part 86874
• Idler shaft, 5x40mm
• Fits the HPI Firestorm 10T
• Keeps transmission gears properly aligned
• Direct replacement for the stock shaft