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Product details
Four dust-booted 1.75-inch aluminum pistons give this black Dynapro a 4.80-square-inch effective area. The forged body is configured for a nominal 0.81-inch rotor width and top-loaded 7812 pads. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems, from calipers and brake rotors to master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized use.
Technical Details
- Manufacturer part number: 120-11482. Component: Dynapro Dust-Boot caliper.
- Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
- Bracket interface: 5.25-inch lug centers with 0.39-inch holes. Specified mount height: 2.10 inches; orientation: universal.
- Pad fit is type 7812. Match the pad dimensions and compound to the rotor and intended braking conditions.
- Construction and surface: forged aluminum housing finished in Black powder coat.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
- Bore configuration 1.75 inches across 4 pistons; piston material: aluminum. Hydraulic effective area: 4.80 square inches.
- Nominal rotor width 0.81 inch; compatible outside diameter from 10.00 through 13.06 inches. Specified rotor-width limits: 0.75–0.83 inch.
- Caliper weight: approximately 3.8 lb.
- Piston dust boots: included.
Fitment & Compatibility
Match the larger bore to the complete hydraulic system. Confirm the 5.25-inch bracket centers, rotor sweep and the booted design's suitability for the expected debris and heat exposure.
With 20+ years of experience, PMB Performance can help compare the actual brake hardware. Supply the caliper number, rotor dimensions and mounting measurements when asking about compatibility.
