Wilwood Rear Red Superlite Brake Kit for Jeep Wrangler JK, 12.88-Inch Drilled-and-Slotted Rotors — Selected 2007–2018 Applications

Red Superlite 4R calipers and drilled-and-slotted rotors form this rear Jeep JK service-brake conversion. The 12.88-inch rotor diameter retains a smaller wheel requirement than the separate 14-inch package, subject to the clearance drawing. Wilwood Engineering has designed and manufactured disc brake systems since Bill Wood founded it in 1977. Its Camarillo, California operation supplies calipers, master cylinders, brake rotors, valves, fittings and lines for specialized, street-performance and motorsport applications. Each component must be chosen to match the complete brake system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13969-DR
• Kit classification: Rear Brake Kits - Street Performance
• Axle position: Rear Kits
• Brake Type: Disc; Parking
• Selling unit: Sold as a kit.
• Minimum wheel guidance (clearance drawing required): 17 in; 431.8 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: 12.88 in; 327.15 mm
• Rotor Thickness: 0.81 in; 20.57 mm
• Rotor Material: Iron
• Surface Type: SRP Drilled & 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
• Pistons per service caliper: 4
• Service-caliper piston construction: Stainless
• Service-caliper mount: Radial
• Caliper body construction: Forged aluminum
• Caliper Color: Red
• Caliper Finish: Red 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

Fitment & Compatibility

Confirm the listed Jeep JK rear axle and original parking-brake mechanism; 2018 Wrangler JK fitment does not establish JL compatibility. DS-1080 includes flexlines 220-13968 and their replacement hose-mount brackets. The 12.88-inch rotor/hat must register on the hub and clear the wheel, while the parking shoes are checked and adjusted to the vehicle specification.

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

Wilwood product specifications · Installation instructions

Ask PMB Performance for help comparing the installation requirements. We have more than 20 years of experience working with brake parts and fitment.