Fitment questions?
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Product details
A red powder-coated Narrow DynaPro body houses four 1.25-inch pistons in this hydraulic caliper. It is the quarter-inch-rotor configuration, using the thin-pad layout and an M10 x 1.25 inlet. The piston area is substantially different from the larger-bore alternatives, so the part is identified by its working dimensions rather than finish alone. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components for motorsport, street-performance and specialized uses, including calipers, brake rotors, master cylinders, valves, fittings and brake lines; each component must match the requirements of the complete brake system.
Technical Details
- Manufacturer part number: 120-18061-RD
- Caliper type: Narrow Dynapro Radial Mount
- Construction: Billet Aluminium
- Finish: Red Powder Coat
- Piston bores: 1.25 / 1.25 inches
- Piston type: Stainless
- Piston count: 4
- Published piston area: 2.46 square inches
- Dust boots: No
- Nominal rotor width: 0.25 inch
- Rotor thickness limits: 0.25–0.25 inches
- Rotor diameter limits: 10.75–12.19 inches
- Mounting style: Radial
- Handedness: Not restricted to one side; correct mounting and bleed orientation required
- Mounting centers: 4.75 inches
- Mounting-hole size: 0.39 inch
- Mount height: 1.61 inch
- Hydraulic inlet thread: M10 x 1.25
- Required pad shape: 7812
- Published pad area: 6.36 square inches
- Published pad volume: 2.1 cubic inches
- Manufacturer-listed component weight: 3.2 lb
Fitment & Compatibility
Match the original brake package’s hydraulic requirements and the exact pad type. Mounting requires 4.75-inch radial centers, the correct bracket stand-off and adequate space within the wheel. Confirm a rotor diameter within the published 10.75–12.19-inch envelope and inspect pad contact across the friction track before approving the assembly.
With over 20 years of parts experience, PMB Performance can help compare this component with your existing brake assembly. Include its caliper reference and any conversion-kit information.
