Wilwood Brake System

Passenger Side Fitment

Part #: 120-15752

Overview

The Wilwood GP320 4 Piston Aluminum Caliper is a high-performance brake component designed for enthusiasts seeking reliable stopping power and durability. Crafted from lightweight aluminum, this caliper offers excellent heat dissipation and resistance to corrosion, making it ideal for both street and track applications. Its gray anodized finish not only enhances corrosion resistance but also provides a sleek, professional appearance. This caliper is intended for drivers who demand precise braking response, consistent performance, and a high-quality build that supports aggressive driving styles and spirited driving experiences.

Key Features

This caliper features advanced engineering and durable materials to ensure optimal performance and longevity. Key features include:

• Constructed from lightweight, high-strength aluminum for reduced unsprung weight
• Four-piston design for balanced clamping force and improved braking response
• Gray anodized finish for corrosion resistance and aesthetic appeal
• Designed to fit 11.50-inch diameter rotors with a 0.240-inch thickness
• Passenger side mounting for precise fitment and installation
• Compatible with a wide range of high-performance brake systems
• Sold individually to allow flexible upgrade options

Construction & Design

The GP320 caliper is engineered with a robust aluminum body that combines lightweight construction with high thermal conductivity. The precision-machined piston bores and durable seals ensure consistent operation under demanding conditions. Its anodized coating provides additional protection against corrosion, maintaining performance and appearance over time.

Driving Feel & Feedback

This caliper enhances braking feel by providing firm, predictable pedal response, allowing for confident modulation during aggressive driving or spirited street use. Its four-piston design distributes braking force evenly, reducing brake fade and improving overall control.

Installation & Fitment

Installation requires compatible rotors and mounting hardware, with fitment verified against the specified rotor diameter and mounting configuration. Proper installation ensures optimal performance and safety.

What’s Included

The package includes one passenger side aluminum caliper, ready for installation with compatible brake components. Hardware and additional mounting accessories are sold separately.