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Product details
Red finish identifies the 3.25-inch lug-mount DynaPro Single in this listing. Two 1.75-inch stainless pistons apply the pads within its billet aluminum body. It is an individual hydraulic caliper for a nominal 0.38-inch rotor width, with mounting height and pad position to be established by the complete brake package. 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: 120-9687-RD
- Caliper type: Dynapro Single
- Construction: Billet Aluminium
- Finish: Red Powder Coat
- Piston bores: 1.75 inches
- Piston type: Stainless
- Piston count: 2
- Published piston area: 2.40 square inches
- Dust boots: No
- Nominal rotor width: 0.38 inch
- Rotor thickness limits: 0.25–0.38 inches
- Rotor diameter limits: 6.00–13.00 inches
- Mounting style: Lug
- Handedness: Not restricted to one side; correct mounting and bleed orientation required
- Mounting centers: 3.25 inches
- Mounting-hole size: 0.39 inch
- Mount height: 1.92 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 6812
- Published pad area: 3 square inches
- Published pad volume: 1.1 cubic inches
- Manufacturer-listed component weight: 2.3 lb
Fitment & Compatibility
Compare the caliper drawing with the actual bracket and rotor rather than selecting on color. The permitted thickness range is 0.25–0.38 inch, subject to correct pad fit and offset. Verify clearance for the housing, fitting and hose and make sure bleeders remain positioned to remove air from the installed circuit.
For help identifying the correct brake component, provide the caliper markings and installation dimensions. PMB Performance has over 20 years of experience with parts and brake-system details.
