J.C. Whitney RT28390012 Front Suspension Knuckle Driver Side Silver Aluminum OEM Replacement

The J.C. Whitney RT28390012 is an OEM-replacement front suspension steering knuckle for the driver side (left-hand) of compatible Tesla Model 3 vehicles. Manufactured from lightweight aluminum with a silver finish, this knuckle is a direct-fit replacement engineered to restore factory suspension geometry and handling precision.

The front suspension knuckle is a critical structural component that serves as the pivot point for the front wheel assembly. It interfaces with the upper control arm, lower lateral link, lower compliance link, tie rod end, brake caliper, hub assembly, ABS wheel speed sensor, and brake dust shield. Replacing a damaged or worn knuckle restores proper suspension alignment, steering response, and wheel bearing support.

Key Features:

• OEM-quality replacement front suspension knuckle
• Driver side (left-hand / LH) application
• Lightweight aluminum construction with silver finish
• Direct-fit replacement — no modifications required
• Designed to restore factory suspension geometry
• Compatible with ABS wheel speed sensor mounting points
• Interfaces with upper control arm, tie rod end, lateral link, and compliance link
• Replaces OEM part number 104431100E

After installation, a front-end wheel alignment is recommended to ensure proper suspension geometry. This part is designed for professional installation by qualified technicians familiar with Tesla suspension systems.