Wilwood Black SRP Front Disc Conversion for Jeep Wrangler/Wrangler JK (2007–2018), 14-Inch Rotors

Wilwood supplies drilled/slotted 14-inch rings and black six-piston calipers in this front kit for the specified Jeep JK applications. Aluminum hats mount the 72-curved-vane rotors to the original hub arrangement. The radial caliper bracket and BP-20 pad selection are part of this specific package, with the factory spindle and hub retained when they match the application. 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: 140-12440-D
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat)
• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Black Powder Coat.
• Caliper bore sizes: 1.75, 1.25, 1.25 inches. Piston type: Stainless.
• Included pad compound: BP-20.
• Rotors: 14.00-inch diameter × 1.25-inch thickness; SRP Drilled & Slotted; Spec-37 Iron; Black Electro Coat surface; 72 curved vanes.
• Wheel bolt circles: 5 x 5.00 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: 18 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.

Fitment & Compatibility

Compare the exact Wrangler or Wrangler JK entry with the vehicle's drivetrain and steering-side configuration. DS893 provides the installation dimensions and wheel-clearance outline. Confirm the hub register, lug pattern and stud engagement before checking rotor runout. Plan hydraulic lines separately and allow for the actual suspension travel, especially on modified Jeeps. The 18-inch screening figure still requires a spoke-profile check.

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.