Wilwood Rear Black Superlite 4R Brake Kit, 14-Inch Slotted Rotors for Jeep Wrangler/JK 2007–2018

This larger Jeep JK rear conversion uses black four-piston calipers and 14-inch GT-slotted rotors. It retains the compatible original parking brake and includes the rear flexline kit and replacement hose-mounting brackets. From Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and their components. Founded by Bill Wood in 1977, it serves street-performance, motorsport and specialized applications with master cylinders, calipers, brake rotors, valves, fittings and brake lines. All components must suit the requirements of the complete system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-14066
• Kit classification: Rear Brake Kits - Street Performance
• Axle position: Rear Kits
• Brake Type: Disc; Parking
• Selling unit: Sold as a kit.
• Pistons per service caliper: 4
• Service-caliper piston construction: Stainless
• Service-caliper mount: Radial
• Caliper body construction: Forged aluminum
• Caliper Color: Black
• Caliper Finish: Black Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: Superlite 4R
• Pad compound: BP-20
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes
• Minimum wheel guidance (clearance drawing required): 18 in; 457.2 mm
• Required rear axle / flange: OEM
• Catalog axle-offset reference: 0.00 in; 0 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No
• Rotor Outside Diameter: 14.00 in; 355.6 mm
• Rotor Thickness: 0.81 in; 20.57 mm
• Rotor Material: Iron
• Surface Type: GT Slotted
• Rotor construction: Vented
• Bolt Circle Diameter: 5 x 5 in; 5 x 127 mm
• Catalog stud / mounting-hole reference: 0.660 in; 16.76 mm
• Rotor surface finish: Black Electro Coat
• Hat material: Iron
• Hat finish: Black E-Coat
• Hat offset dimension: 2.200 in

Fitment & Compatibility

Use only the specified Jeep JK rear hub and matching original parking-brake hardware, including the separate 2018 Wrangler JK application rather than JL. The 14-inch rotor package requires more wheel space than the 12.88-inch version. DS-1097 includes rear flexlines 220-13968 and mounting brackets; inspect routing, hub registration and the parking-shoe adjustment during installation.

Listed models: Wrangler; Wrangler JK. Use the fitment table below for the individual years, submodels and equipment conditions.

Wilwood product specifications · Installation instructions

PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.