Wilwood Rear Slotted-Rotor Kit, Red Superlite 4R Calipers for Jeep Wrangler/JK 2007–2018

This red Superlite rear kit uses GT-slotted 12.88 by 0.81-inch rotors for the listed Jeep JK hub. The factory parking-brake parts remain in service, and the included flexline brackets replace the specified original hose mounts. Wilwood Engineering designs and builds disc brake systems in Camarillo, California. Bill Wood established the company in 1977; it supplies brake rotors, calipers, master cylinders, valves, fittings and lines for specialized applications, street performance and motorsport. The complete brake system determines which individual components are appropriate.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13969-R
• 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: Red
• Caliper Finish: Red Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: Superlite 4R
• Pad compound: BP-20
• Rotor Outside Diameter: 12.88 in; 327.15 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
• 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
• 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

With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.