Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The black Wilwood Forged Narrow Superlite 4R Dust Seal combines four 1.25-inch stainless pistons with piston dust protection. Its 5.98-inch radial attachment pattern and nominal 1.10-inch rotor-width capacity identify this configuration. A compatible bracket must also match the rotor radius and centerline. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, Wilwood designs and manufactures disc brake systems and parts for motorsport, street-performance and specialized applications, from calipers and rotors to master cylinders, valves, fittings and brake lines.
Technical Details
- Manufacturer part number: 120-14439-BK
- Component: Wilwood Forged Narrow Superlite 4R Dust Seal; one caliper
- Rotor width: 1.10-inch nominal; 1.00–1.10-inch permitted range
- Rotor diameter range: 11.75–14.00 inches
- Mounting: universal side configuration; Radial; 5.98-inch centers; 0.39-inch mounting holes
- Mount height: 1.45 inches
- Piston arrangement: 4 pistons; 1.25-inch bores; stainless steel
- Hydraulic piston area: 2.46 square inches, as specified by Wilwood
- Pad shape: Wilwood type 7416; compound selected separately
- Body and finish: Forged aluminum; Black Powder Coat
- Dust boots: Yes
- Fluid inlet: 1/8-27 NPT
The dust-seal Superlite 4R uses four equal-bore pistons and a radial mounting pattern. Its piston wipers provide environmental sealing; they do not replace the need to select pads, fluid and rotor dimensions for the intended service.
Fitment & Compatibility
Check the caliper-to-bracket attachment and rotor offset before ordering. Changing piston diameter changes hydraulic requirements even when a different caliper shares the same bolt spacing.
This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.
Ask PMB Performance for help comparing this caliper with your existing assembly. Our over 20 years of experience are most useful when you provide rotor size, mounting details and the current piston configuration.
