Wilwood Dynalite Single IIIA Brake Caliper 120-3842 for 13-Inch x 0.250-Inch Rotors

The Wilwood Dynalite Single IIIA Brake Caliper, part number 120-3842, delivers reliable, lightweight braking performance for applications using a 13-inch rotor with 0.250-inch thickness. Its aluminum construction helps reduce unsprung weight while providing the strength and durability required for demanding street, track, and performance driving environments.

Designed for driver- or passenger-side installation, this caliper features a 1.75-inch piston and a 3.75-inch lug mount for compatibility with properly matched Wilwood brake components. The clear anodized finish adds corrosion resistance and gives the caliper a clean, professional appearance. As part of the Dynalite family, the Single IIIA provides a practical combination of compact design, responsive braking, and straightforward installation.

Use the Wilwood 120-3842 caliper with a compatible 13-inch x 0.250-inch rotor and mounting configuration. Confirm vehicle fitment, rotor specifications, bracket requirements, and brake system compatibility before installation. This caliper is sold individually and is suitable for driver- or passenger-side applications when matched to the correct vehicle and brake setup.

Features:

• Brand: Wilwood
• Part Number: 120-3842
• Product Type: Dynalite Single IIIA brake caliper
• Construction: Lightweight aluminum
• Finish: Clear anodized
• Piston Size: 1.75 inches
• Rotor Compatibility: 13-inch diameter rotors with 0.250-inch thickness
• Mounting: 3.75-inch lug mount
• Application: Driver- or passenger-side installation
• Quantity: Sold individually