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Product details
Red finish identifies this Powerlite caliper, configured with four 1.00-inch bores and the wider rotor opening. Its nominal 0.86-inch rotor width sits within a 0.79–0.86-inch thickness range. The forged four-piston body is a component for a brake package designed around its mount and pad dimensions. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake systems and components serve motorsport, street-performance and specialized applications. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among its products, selected according to the complete brake system’s requirements.
Technical Details
- Manufacturer part number: 120-8727-RD
- Caliper type: Powerlite Radial Mount
- Construction: Forged Aluminium
- Finish: Red Powder Coat
- Piston bores: 1.00 / 1.00 inches
- Piston type: Stainless
- Piston count: 4
- Published piston area: 1.58 square inches
- Dust boots: No
- Nominal rotor width: 0.86 inch
- Rotor thickness limits: 0.79–0.86 inches
- Rotor diameter limits: 9.45–11.00 inches
- Mounting style: Radial
- Handedness: Not restricted to one side; correct mounting and bleed orientation required
- Mounting centers: 5.08 inches
- Mounting-hole size: 0.40 inch
- Mount height: 1.56 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 7912
- Published pad area: 5 square inches
- Published pad volume: 1.8 cubic inches
- Manufacturer-listed component weight: 2.8 lb
Fitment & Compatibility
Confirm the radial bracket’s centers and stand-off as well as the rotor diameter. Compare pad placement across the friction track, inspect wheel clearance and use an inlet fitting of the specified thread. If replacing a larger-bore Powerlite, verify the hydraulic effect of the smaller piston area before making the substitution.
With over 20 years of parts experience, PMB Performance can help compare this component with your existing brake assembly. Include its caliper reference and any conversion-kit information.
