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Product details
The rotor and bracket determine whether this anodized Wilwood Powerlite-ST brake caliper is the correct choice. Its 0.50-inch rotor-width configuration works with the radial mount and 4-piston layout detailed below. Powerlite-ST uses a compact radial-mount body with Thermlock insulated pistons and top-supported 7912-shape pads. The bore size must be selected with the master cylinder and hydraulic balance; nominal rotor width is independent of rotor diameter and wheel diameter. Founded by Bill Wood in 1977, Wilwood Engineering is based in Camarillo, California. It designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications. Components must be selected to suit the complete brake system.
Technical Details
- Manufacturer part number: 120-15736
- Component: Powerlite Radial Mount; one individual caliper
- Placement: Universal mounting orientation; verify axle position
- Construction and finish: Forged aluminum; Type III Anodize
- Nominal rotor width: 0.50 inches
- Rotor width range: 0.35–0.50 inches
- Rotor diameter range: 9.45–11.00 inches
- Caliper weight reference: 2.8 lb
- Mounting interface: Radial; mounting centers 5.08 inches
- Mounting-hole diameter: 0.40 inches
- Mount height: 1.56 inches
- Hydraulic inlet thread: 1/8-27 NPT
- Pistons: 4; Thermlock insulated; bore dimensions 1.38/1.38 inches
- Hydraulic piston area: 3.00 square inches
- Dust boots: No
- Brake pad shape: 7912; shape number does not specify a friction compound
Fitment & Compatibility
Compare the caliper drawing with your radial bracket before ordering. The 5.08-inch mounting centers and 1.38/1.38-inch bores must suit the installed rotor offset and hydraulic system. Axle placement is determined by the engineered brake package, not by a generic caliper designation. A suitable pad sweep and clearance inside the wheel must be verified independently of rotor width.
Wilwood caliper specifications · Wilwood technical reference
For a modified brake system, provide its existing component specifications along with the vehicle details. PMB Performance has over 20 years of parts and fitment experience to help check the assembly before purchase.
