Wilwood Superlite 4-Piston Left-Hand Brake Caliper 120-11138 for 13.060-Inch Rotors

The Wilwood Superlite brake caliper, Part Number 120-11138, is a forged aluminum 4-piston caliper designed for high-performance braking applications. Its gray anodized finish provides a clean, durable appearance while helping protect the caliper surface in demanding driving environments. This left-hand caliper is engineered for use with 13.060-inch outside-diameter rotors measuring 0.810 inch thick and features a 3.500-inch lug-mount configuration.
Built for consistent braking performance, the Superlite design uses staggered piston sizing with 1.88-inch and 1.75-inch pistons to support controlled pad wear and effective pressure distribution across the brake pad. The integrated Thermlock feature helps reduce heat transfer from the caliper and maintain more stable brake-system operation during repeated heavy braking. Its lightweight aluminum construction helps reduce unsprung weight without sacrificing the strength required for competition, performance street, and track-focused applications.
This Wilwood 120-11138 caliper is supplied as an individual left-hand unit and is intended for compatible custom brake system installations. Verify rotor specifications, mounting arrangement, piston configuration, brake pad compatibility, and vehicle fitment before ordering. Professional installation and proper brake-system setup are recommended to ensure safe, balanced operation.

Features:

• Brand: Wilwood

• Part Number: 120-11138

• Caliper Type: Superlite forged 4-piston brake caliper

• Hand: Left-hand

• Material: Aluminum

• Finish: Gray anodized

• Rotor Compatibility: Designed for 13.060-inch outside-diameter rotors with 0.810-inch thickness

• Mounting: 3.500-inch lug mount

• Piston Configuration: 1.88-inch and 1.75-inch staggered pistons

• Thermal Management: Thermlock feature helps limit heat transfer

• Quantity: Sold individually