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HPI Racing Differential Pinion Gear Set for Micro RS4 Drift

HPI Racing Differential Pinion Gear Set for Micro RS4 Drift

Regular price $7.99 USD
Sale price $7.99 USD Regular price
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SKU: HPI73403
UPC: 4944258734033
Brand: RC Hop Up Parts
Product Type: Replacement Parts

Sold by ToyTooth — Your trusted kids' toy store.

Returns accepted within 30 days  |  support@toytooth.com

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Description

Overview

The HPI Racing Differential Pinion Gear Set is a genuine replacement diff pinion gear and ball joint kit designed for the HPI Micro RS4 and Micro Drift 1/18 scale platforms. The kit includes the diff pinion gear plus the front driveshaft ball joint hardware.

This direct-fit replacement is ideal for refreshing diff internals and front drivetrain parts. Note: To complete the front driveshafts, front differential housing, and output cups assembly, you will also need item #HPI73404 (Servo Arm Set, which includes front driveshafts, diff housing, and output cups).

Key Features

  • Genuine HPI Racing Micro RS4 / Micro Drift replacement
  • Includes diff pinion gear and front driveshaft ball joints
  • Direct factory fit
  • Refreshes drivetrain internals
  • Durable construction

Performance Benefits

  • Restored diff operation
  • Refreshed front drivetrain
  • Reliable power transfer

Usage Notes

  • Pair with #HPI73404 for a complete front driveshaft / diff rebuild
  • Use light grease at install

Technical Specs

  • Type: Diff Pinion Gear Set + Front Driveshaft Ball Joints
  • Manufacturer: HPI Racing

Fitment

  • HPI Micro RS4 (1/18 Scale)
  • HPI Micro Drift (1/18 Scale)

What's Included

  • (1) HPI Racing Diff Pinion Gear Set with Front Driveshaft Ball Joints

Summary

A core diff and front drivetrain replacement — pair with HPI73404 for a complete front-end refresh.

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