Wilwood Powerlite Radial Mount 4-Piston Caliper 1.38" Pistons 0.86" Rotor 120-8729

Stop settling for marginal braking performance. The Wilwood Powerlite 120-8729 delivers the stopping power and thermal stability you need for sustained high-performance driving, whether you're pushing lap times on the track or tackling aggressive off-road terrain. At just 2.8 lbs, this forged aluminum four-piston caliper provides exceptional strength without the weight penalty—a critical advantage when optimizing your vehicle's dynamics.

Four-piston calipers distribute braking force more evenly across the rotor than dual-piston designs, reducing heat concentration and fade during extended braking events. The Powerlite's stainless steel pistons and gray anodized aluminum body withstand the thermal cycles and corrosive environments that destroy lesser components. The 5.08-inch radial mount design accommodates a wide range of vehicles, making fitment straightforward for most custom brake applications up to 11-inch rotor diameters.

• Piston count: 4-piston design
• Piston area: 3.00 in²
• Piston type: Stainless steel
• Material: Forged aluminum
• Finish: Gray anodized
• Mount type: Radial
• Mount center: 5.08 inches
• Mount holes: 0.40 inches
• Mount height: 1.56 inches
• Rotor width: 0.86 inches
• Max rotor diameter: 11.00 inches
• Inlet thread: 1/8-27 NPT
• Weight: 2.8 lbs
• MPN: 120-8729