Wilwood GT Slotted 14-Inch Front Brakes for Jeep Wrangler/Wrangler JK (2007–2018), Red

Wilwood's red-caliper JK front conversion uses GT slotted 14-inch Spec-37 iron rotors and six-piston radial calipers. Separate hats position the rings on the vehicle's original hubs, with BP-20 pads included. It is intended for the listed Jeep Wrangler and Wrangler JK configurations whose factory disc-spindle arrangement matches the supplied bracket package. 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-R
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat)
• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Red 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; GT 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

Use the exact vehicle entry to confirm model-year and steering-side restrictions. DS893 is the reference for hub fit, hat position and the wheel-clearance envelope. The larger caliper can conflict with wheel spokes even when the rim is 18 inches in diameter. Select suitable hydraulic hoses separately and check travel through steering lock and suspension articulation before the front/rear system is balanced and tested.

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.