HPI Racing 40-Tooth Differential Gear for Bullet MT/ST

Overview

The HPI Racing 40-Tooth Differential Gear is a precision OEM replacement diff gear designed for the HPI Bullet MT and Bullet ST 1/10-scale trucks. This 40T diff gear is a critical drivetrain component, transferring torque through the differential to the wheels.

Built to factory specifications, this gear restores accurate mesh and reliable performance.

Key Features

• 40-tooth count
• Precision-cut teeth for clean mesh
• OEM HPI Racing replacement
• Durable construction

Performance Benefits

• Restores efficient torque transfer
• Maintains factory diff ratios
• Reduces drivetrain noise and wear
• Long-lasting durability

Usage Notes

Replace whenever the diff gear shows worn or chipped teeth. Pack diff with quality silicone diff fluid during installation.

Technical Specs

• Type: Differential Gear
• Tooth Count: 40T
• Application: Bullet MT/ST differentials

Fitment

• HPI Bullet MT
• HPI Bullet ST
• HPI Bullet MT Flux
• HPI Bullet ST Flux

What's Included

• (1) HPI Racing 40T Differential Gear

Summary

Restore reliable diff performance to your Bullet MT/ST with this OEM 40T differential gear replacement.