Caliper Powerlite 1.38in Piston .860 Rotor

The WILWOOD Caliper Powerlite 1.38-inch Piston .860 Rotor is a high-performance four-piston aluminum brake caliper designed for precision stopping power and superior thermal management in demanding automotive applications. This caliper is ideal for track use, street performance driving, and motorsport competition where consistent stopping force is essential.

Constructed from gray anodized aluminum, this brake caliper offers fade-resistant performance across extended braking cycles. The four-piston design evenly distributes clamping force across the brake pad surface, enhancing brake response consistency and reducing uneven wear. The 1.38-inch piston diameter and rotor thickness of 0.860 inches provide the necessary mechanical advantage for aggressive deceleration without requiring excessive pedal pressure.

Performance enthusiasts upgrading factory braking systems on sports cars, hot rods, off-road vehicles, and autocross competitors will benefit from the lightweight aluminum construction, which minimizes unsprung weight while maintaining structural rigidity. The Powerlite series is often installed as part of complete brake system upgrades where OEM calipers may lack the thermal capacity or clamping force needed for high-heat environments. Always verify fitment compatibility with your specific vehicle's rotor diameter and mounting configuration.