Wilwood Rear Superlite 6R Brake Kit for Listed Six-Lug Ford F-150 with Mechanical Parking Brake, Black Calipers and 14.25-Inch GT Rotors

Six-piston Superlite 6R calipers operate the 14.25-inch rear GT rotors in this F-150 conversion. Black calipers and iron parking hats retain the specified mechanical parking assembly, with flexlines selected separately by the installed chassis connections. Based in Camarillo, California, Wilwood Engineering was established by Bill Wood in 1977. It designs and manufactures disc brake systems, calipers, rotors, master cylinders, valves, fittings and brake lines. That range serves motorsport, street-performance and specialized applications; the individual parts must be matched to the requirements of the complete braking assembly.

Technical Details

• Manufacturer: Wilwood; manufacturer part number: 140-13866. Supplied quantity: Sold as a kit.
• Application category: Rear Brake Kits - Street Performance. Axle/spindle category: Rear Kits. Brake function: Disc; Parking.
• Separate wheel hubs included: No. Retain only the hub arrangement specified for this kit.
• Mounting hardware included: Yes. Spindles included: No. Master cylinder included: No. Brake booster included: No.
• Flexible brake lines included: No. Select the vehicle-end connection and routing separately.
• The rotor hats retain the specified original mechanical parking-brake shoes and assembly; a replacement parking-brake mechanism is not supplied.

• Rotor: 14.25 in; 361.95 mm outside diameter; 1.25 in; 31.75 mm thickness. Material: Spec-37 Iron. Construction: Vented. Friction-face style: GT Slotted.
• Rotor-hat material: Iron. Hat offset: 2.000 inches; this hat dimension is separate from axle offset.
• Rotor surface finish: Black Electro Coat.

• Wheel interface: 6 x 5.32 in; 6 x 135.13 mm. Rotor/hat wheel-stud clearance: 0.590 in; 14.99 mm.
• Nominal minimum wheel diameter: 18 in; 457.2 mm. Verify the full wheel-clearance drawing; diameter alone does not establish barrel or spoke clearance.
• Housing/spindle flange: OEM. Flange/axle offset: 0.00 in; 0 mm.

• Calipers: 6 stainless pistons per caliper; radial mounting; forged aluminium bodies. Color: Black. Finish: Black Powder Coat. Inlet thread: 1/8-27 NPT.
• Caliper family: Forged Narrow Superlite 6R. Brake-pad compound: BP-20.

Fitment & Compatibility

Six-lug hubs and a mechanical parking brake are required; seven-lug and electric-parking-brake vehicles are excluded. Check the full F-150/Raptor year rows below. DS1110 requires dust-shield clearance work and identifies different hose threads by year; verify wider-track Raptor hose selection separately.

This is a six-piston Superlite 6R rear kit. It fits only the documented six-lug, mechanical-parking-brake arrangement; seven-lug and electric-parking-brake vehicles are excluded. DS1110 requires the illustrated dust-shield trimming to 9.75 inches diameter. Hoses are separate: DS1110 distinguishes 220-15277 with M10 x 1.0 inverted flare for 2012–2014 and 220-15276 with M10 x 1.5 inverted flare for 2015-up standard-track applications. Wider Raptor routing requires confirmation before choosing a hose; do not select solely by the Raptor badge.

Use the fitment table below for the complete model, year, submodel and brake-option conditions; every listed condition must match the installed vehicle.

Manufacturer Documents

• Wilwood product specifications and wheel-clearance drawing
• Installation instructions

Before ordering, PMB Performance can help assess the application using your vehicle and brake-system details. Over 20 years of parts and fitment experience informs that review.