The Wilwood Aero4 4-Piston Caliper is designed for left-hand mounting applications that use a 1.25-inch-thick rotor. Finished in black, this performance brake caliper combines a compact, purpose-built design with the clamping capability of four pistons to support consistent braking performance in demanding automotive applications. Part number 120-13282-BK provides a direct reference for identifying the correct Wilwood Aero4 configuration.
This caliper is intended for enthusiasts, builders, and performance-focused installers who need a dependable braking component for a custom or upgraded brake system. Its four-piston layout helps distribute clamping force across the brake pad, promoting even pad contact and controlled braking response when properly matched with the rotor, pads, master cylinder, and other system components. The black finish adds a clean, understated appearance that works well with a wide range of wheel and brake system styles.
Verify vehicle application, mounting position, rotor compatibility, brake pad selection, and required installation hardware before ordering or installation. The left-hand orientation and compatibility with a 1.25-inch rotor are important selection criteria. Professional installation is recommended, along with a complete inspection and proper brake system bedding procedure after installation. This Wilwood caliper is not restricted for air shipment and does not require truck freight, making it a practical choice for many project and replacement applications.
Features:
- Part Number: 120-13282-BK
- Caliper Design: Aero4 four-piston brake caliper
- Mounting Orientation: Left-hand application
- Rotor Compatibility: Designed for a 1.25-inch-thick rotor
- Shipping Classification: Not air restricted and not truck freight only