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Product details
Four 1.75-inch stainless pistons work in this black forged DynaPro caliper. It is the nominal 0.81-inch rotor-width body with a 5.25-inch lug interface. The housing’s pad-retention layout permits servicing from the top, while its exact rotor and hydraulic dimensions determine the correct application. 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: 120-9693
- Caliper type: Dynapro Lug Mount
- Construction: Forged Aluminium
- Finish: Black Powder Coat
- Piston bores: 1.75 / 1.75 inches
- Piston type: Stainless
- Piston count: 4
- Published piston area: 4.80 square inches
- Dust boots: No
- Nominal rotor width: 0.81 inch
- Rotor thickness limits: 0.75–0.83 inches
- Rotor diameter limits: 10.00–13.06 inches
- Mounting style: Lug
- Handedness: Not restricted to one side; correct mounting and bleed orientation required
- Mounting centers: 5.25 inches
- Mounting-hole size: 0.39 inch
- Mount height: 2.10 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 7812
- Published pad area: 6.36 square inches
- Published pad volume: 2.1 cubic inches
- Manufacturer-listed component weight: 3.8 lb
Fitment & Compatibility
Measure rotor thickness against the 0.75–0.83-inch range and check lateral alignment with the bracket. The 2.10-inch mount height must place the specified pads correctly on the rotor. Verify the wheel envelope and inlet connection, and retain hydraulic sizing compatible with this caliper’s 4.80-square-inch piston area.
PMB Performance brings over 20 years of brake and parts experience to selection questions. Send the existing caliper reference and brake-package details for help checking compatibility.
