Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The Wilwood Forged Narrow Superlite 4R shown here is specified for 0.81-inch rotor width, 5.98-inch radial mounting and 1.38-inch piston bores. This red 4-piston component is selected by brake-system geometry rather than vehicle year alone. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering manufactures disc brake components for motorsport, street-performance and specialized uses. Its range covers calipers, rotors, master cylinders, valves, fittings and brake lines.
The narrow Superlite 4R has four pistons, radial attachment and removable center bridge access to type 7416 pads. Check the specific rotor-width version before ordering another caliper from the same family.
Technical Details
- Manufacturer part number: 120-14055-RD
- Component: Wilwood Forged Narrow Superlite 4R; one caliper
- Piston arrangement: 4 pistons; 1.38-inch bores; stainless steel
- Hydraulic piston area: 3.00 square inches, as specified by Wilwood
- Pad shape: Wilwood type 7416; compound selected separately
- Mounting: universal side configuration; Radial; 5.98-inch centers; 0.39-inch mounting holes
- Mount height: 1.45 inches
- Rotor width: 0.81-inch nominal; 0.75–0.84-inch permitted range
- Rotor diameter range: 11.75–14.00 inches
- Fluid inlet: 1/8-27 NPT
- Dust boots: No
- Body and finish: Forged aluminum; Red Powder Coat
Fitment & Compatibility
Compare the installed rotor’s nominal width with this exact caliper version. Before assembly, verify pad sweep, caliper-to-wheel clearance and the hose fitting’s thread and sealing method.
This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.
With over 20 years of experience, PMB Performance can help compare piston configuration and mounting geometry. Share the existing brake package and measured rotor dimensions before ordering.
