Wilwood 120-17220-BK XRS6R Left-Hand 6-Piston Radial Mount Brake Caliper Black

The Wilwood 120-17220-BK is a left-hand (driver side) XRS6R 6-piston radial mount brake caliper finished in a durable black powdercoat. Engineered for extreme-duty street and competition use, the XRS6R series represents Wilwood's largest dual-purpose radial mount caliper platform, purpose-built to deliver maximum braking capacity with large-diameter rotors.

Key Features:

• 6-Piston Design: Multi-piston configuration ensures even pad pressure distribution across the rotor surface for consistent, fade-resistant braking performance
• Radial Mount Architecture: Radial mounting maximizes caliper rigidity and reduces flex under extreme braking loads, improving pedal feel and modulation
• Forged Aluminum Body: Lightweight yet extremely strong forged aluminum construction delivers an excellent strength-to-weight ratio for performance and race applications
• Dust Wiper Seal System: Exclusive dust wiper seals protect piston bores from debris, moisture, and corrosion, extending service life and maintaining consistent piston function
• Black Powdercoat Finish: High-temperature black powdercoat provides a clean, durable finish resistant to brake dust, heat, and road contamination
• Left-Hand Specific: Designed specifically for the left (driver) side of the vehicle — pair with the matching right-hand caliper for a complete axle upgrade
• Compatible with Large-Diameter Rotors: XRS6R calipers are engineered to work with large-diameter rotors, providing the thermal capacity needed for sustained high-speed and track use

The XRS6R caliper line was developed for builds that demand maximum braking force — including heavy performance vehicles, dedicated track cars, and high-speed street/strip applications. The 120-17220-BK is a single caliper; order the corresponding right-hand unit for a complete front or rear axle installation. Professional installation with application-specific mounting brackets and brake lines is required.