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Product details
Red finish covers this small-piston DynaPro caliper, which has four 1.00-inch stainless pistons. It uses the nominal 0.81-inch rotor-width body and 5.25-inch lug centers. Its lower piston area must be matched to the brake system when selected as a replacement or as part of a custom conversion. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures disc brake systems and components, from calipers and brake rotors to master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications; selection depends on the complete brake system.
Technical Details
- Manufacturer part number: 120-9706-RD
- Caliper type: Dynapro Lug 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: 0.81 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
Compare the hydraulic requirement with the exact caliper already installed rather than matching the red housing alone. Rotor width must be within 0.75–0.83 inch, with correct diameter and pad alignment. Check the bracket stand-off, mount height and wheel envelope, including space around the inlet and hose connection.
PMB Performance has over 20 years of experience helping customers with brake and parts fitment. Share the installed component identification and relevant measurements when requesting assistance.
