Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This red Narrow DynaPro is the thin-pad, 0.25-inch-rotor body with four 1.62-inch stainless pistons. A 4.75-inch radial mounting pattern locates it on a suitable bracket, while the M10 x 1.25 inlet supplies the hydraulic circuit. Its finish is a visible distinction, but the caliper’s dimensional specification controls where it can be used. Based in Camarillo, California, Wilwood Engineering was founded by Bill Wood in 1977. The manufacturer produces disc brake systems and components for motorsport, street-performance and specialized applications, with a range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines. Individual components are chosen to suit the complete brake system.
Technical Details
- Manufacturer part number: 120-18083-RD
- Caliper type: Narrow Dynapro Radial Mount
- Construction: Billet Aluminium
- Finish: Red Powder Coat
- Piston bores: 1.62 / 1.62 inches
- Piston type: Stainless
- Piston count: 4
- Published piston area: 4.12 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: 4.1 lb
Fitment & Compatibility
For a like-for-like repair, match the existing caliper’s full reference and piston area before ordering. Inspect pad height and rotor overlap through the 10.75–12.19-inch published diameter envelope. The installation must also retain room for the wheel spokes, hose fitting and a bleed arrangement that allows complete air removal.
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.
