HPI Racing 66 Tooth Spur Gear – Replacement Drivetrain Gear for RS4 Sport 3

Overview

The HPI Racing 66 Tooth Spur Gear is a genuine OEM replacement spur gear for the HPI RS4 Sport 3 1/10 scale touring car. This precision-cut gear delivers proper power transfer from your motor pinion to the drivetrain.

The 66T count provides a balanced gearing option for the RS4 Sport 3, suitable for general-purpose driving and racing setups.

Key Features

• Genuine HPI Racing OEM replacement
• 66-tooth count for balanced gearing
• Precision-molded for smooth meshing
• Direct fit for RS4 Sport 3
• Durable plastic construction

Performance Benefits

• Balanced acceleration and top speed
• Smooth, quiet drivetrain operation
• Reliable power transfer
• Compatible with stock pinions

Usage Notes

• Pair with appropriate pinion gear
• Check pinion mesh after installation
• Inspect for chipped or worn teeth periodically
• Clean gear before installation

Technical Specs

• Manufacturer: HPI Racing
• Part Number: 113706
• Tooth Count: 66T
• Material: Durable plastic

Fitment

• HPI RS4 Sport 3
• HPI RS4 Sport 3 Hoonicorn
• HPI RS4 Sport 3 BMW M3 E30
• RS4 Sport 3 variants

What's Included

• 1x 66T Spur Gear (RS4 Sport 3)

Summary

Tune your RS4 Sport 3 gearing with this OEM HPI Racing 66T spur gear. Balanced, smooth, and precision-fit.