Wilwood Front Superlite 4R Brake Kit for Jeep CJ5/CJ7/Scrambler (1982–1986), Black Calipers & Plain 12.19-Inch Rotors

This Wilwood front conversion combines black Superlite 4R calipers and plain 12.19-inch vented rotors for the specified 1982–1986 Jeep CJ applications. Separate hats mount the rings to the matching original hub arrangement. The listed CJ5, CJ7 and Scrambler years and trims must be checked individually, particularly on vehicles whose axle or hubs have been replaced during earlier modifications. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-12613
• Type: Forged Narrow Superlite 4R Big Brake Front Brake Kit (Hat)
• Calipers: Forged Narrow Superlite 4R; 4 pistons per caliper; Black Powder Coat.
• Caliper bore sizes: 1.75, 1.75 inches. Piston type: Stainless.
• Included pad compound: BP-10.
• Rotors: 12.19-inch diameter × 1.10-inch thickness; Plain Face; Iron; Plain surface; 32 vanes.
• Wheel bolt circles: 5 x 5.50 inches.
• Included: paired calipers, pads, rotors, mounting brackets and assembly hardware, rotor hats.
• Hydraulic lines and fittings selected separately. No master cylinder, booster or spindles are supplied.
• Conditional wheel screening size: 16 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.

Fitment & Compatibility

Use DS926 to compare the original hub, spindle and five-on-five-and-a-half-inch wheel pattern. Follow the hub preparation and modification requirements, and arrange a suitable new OE grease seal where specified. Hydraulic hoses are separate, with routing matched to steering lock and suspension lift. Verify the 16-inch screening outline against the actual spokes and barrel before evaluating the completed system's hydraulic balance.

Match the individual model, year, submodel and brake configuration in the fitment table below.

Wilwood installation documents: Installation instructions.

PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle details and installed brake hardware for help confirming the correct arrangement.

California Proposition 65 warning, brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.