Upgrade braking performance with the Wilwood XRS4R 4-Piston Brake Caliper, Part Number 120-17203-RD. Designed for applications using a 14-inch outside-diameter rotor with a 0.810-inch rotor thickness, this caliper combines a lightweight aluminum body with a durable red powder-coated finish. Its four-piston configuration provides balanced clamping force across the brake pad, helping deliver consistent response and dependable performance in demanding street, track, and performance driving environments.
The forged XRS4R caliper is engineered for use with a 5.980-inch radial mounting arrangement and is supplied as an individual caliper. Its aluminum construction helps reduce unsprung weight compared with heavier caliper designs, while the forged body provides the strength and rigidity required for repeated high-load braking. The red powder coat adds a clean, performance-oriented appearance while helping protect the caliper surface from normal environmental exposure.
This Wilwood brake caliper is a practical choice for custom brake system upgrades, replacement installations, and performance-focused builds requiring four-piston stopping hardware. Before ordering, verify rotor specifications, mounting configuration, brake pad compatibility, fluid connections, and clearance within the intended wheel and suspension setup. Professional installation and proper brake system bleeding are recommended to help ensure safe, reliable operation. The Wilwood XRS4R 120-17203-RD is sold individually and provides a focused combination of braking control, durable construction, and recognizable Wilwood performance styling.
Features:
- Four-Piston Design: Delivers balanced pad clamping force for responsive and consistent braking performance.
- Forged Aluminum Construction: Provides a rigid, lightweight caliper body suited to demanding performance applications.
- Red Powder-Coat Finish: Adds a durable, distinctive appearance while helping protect the caliper surface.
- Rotor Compatibility: Designed for use with a 14-inch outside-diameter rotor and 0.810-inch rotor thickness.
- Radial Mounting: Uses a 5.980-inch radial mounting arrangement for compatible custom brake system installations.
- Individual Caliper: Supplied as one brake caliper for replacement or brake system project applications.
- Brand and Part Number: Wilwood XRS4R brake caliper, Part Number 120-17203-RD.
