HPI Racing Front Cup Joint 4.5x18.5mm for Bullet MT/ST

Overview

The HPI Racing Front Cup Joint (4.5x18.5mm) is a precision-machined drivetrain cup designed for the front drivetrain of the HPI Bullet MT and Bullet ST 1/10-scale vehicles. The cup joint connects to the drive shaft and allows proper articulation as the suspension moves.

This OEM-quality replacement restores smooth front drivetrain operation after wear or breakage.

Key Features

• Genuine HPI Racing OEM replacement
• 4.5x18.5mm dimensions
• Hardened steel construction
• Direct fit for Bullet MT/ST front drivetrain

Performance Benefits

• Smooth, articulated power transfer
• Maintains drivetrain efficiency through suspension travel
• Resists wear under torque
• Direct bolt-in installation

Usage Notes

Replace whenever cup interior is rounded or worn. Pack with quality grease during installation.

Technical Specs

• Type: Front Cup Joint
• Dimensions: 4.5mm x 18.5mm
• Material: Hardened Steel
• Quantity: 1 piece

Fitment

• HPI Bullet MT
• HPI Bullet ST
• HPI Bullet Nitro MT/ST
• HPI Bullet Flux MT/ST

What's Included

• (1) HPI Racing Front Cup Joint, 4.5x18.5mm

Summary

Restore smooth front drivetrain articulation to your Bullet MT/ST with this OEM-spec front cup joint.