Wilwood PS1 Caliper - RH - 2.5" Lug Mount - 9" x .019" Rotor

Universal Fitment

Part #: 120-8373

Overview

The Wilwood PS1 Caliper is a high-performance brake component designed for enthusiasts seeking lightweight, durable, and efficient braking solutions. Crafted from cast aluminum, this caliper offers a sleek, low-profile design that reduces unsprung weight, enhancing handling and responsiveness. Its compact construction makes it suitable for a variety of applications where space and weight savings are critical. Ideal for racing, track days, or performance upgrades, the PS1 caliper helps improve braking response and heat management, ensuring consistent performance under demanding conditions. Its robust design supports aggressive driving while maintaining reliability and longevity.

Key Features

This caliper features advanced engineering and quality materials to deliver optimal braking performance:

• Lightweight cast aluminum construction weighing only 0.93 pounds
• Two stainless steel deep cup pistons for effective heat dissipation
• High-temperature square piston seals to minimize piston retraction and maintain pad contact
• Internal crossover brake fluid passages eliminating external crossover tubes
• Designed to fit rotors with diameters from 6.00" to 9.00"
• 2.5" lug mount configuration for secure attachment
• Low profile, space-saving design suitable for various performance applications

Construction & Design

The PS1 caliper’s cast aluminum body combines strength with lightweight properties, reducing unsprung mass for improved handling. The stainless steel pistons are engineered for durability and heat resistance, ensuring consistent braking performance. The internal crossover fluid passages streamline installation and reduce potential leak points, contributing to overall reliability.

Driving Feel & Feedback

This caliper enhances braking response and pedal feel, providing precise modulation and confidence during aggressive driving or track use. Its design supports consistent pad engagement and effective heat dissipation, helping maintain optimal braking performance over extended use.

Installation & Fitment

The PS1 caliper is designed for direct bolt-on installation with compatible rotors and mounting hardware. Proper fitment should be verified against vehicle specifications and the part number to ensure compatibility.

What’s Included

The package includes the caliper assembly with stainless steel pistons and necessary mounting hardware for installation. Additional components such as rotors or brackets are not included and must be sourced separately.