Wilwood rear Forged Narrow Superlite 4R kit components for Jeep Wrangler JK, red calipers and 13.5-inch gt slotted rotors
Wilwood rear Forged Narrow Superlite 4R assembly for Jeep Wrangler JK, red caliper and 13.5-inch gt slotted rotor
Wilwood rear Forged Narrow Superlite 4R kit components for Jeep Wrangler JK, red calipers and 13.5-inch gt slotted rotors
Wilwood rear Forged Narrow Superlite 4R assembly for Jeep Wrangler JK, red caliper and 13.5-inch gt slotted rotor

Wilwood Rear Red FNSL4R GT Package for Wrangler JK (2007–2018), 13.50-Inch Rotors & Hoses

SKU: 140-18074-R

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Product details

Red four-piston calipers and GT-slotted 13.50-inch rotors define this Wrangler JK rear package. The supplied hoses connect the new service brakes, and the existing parking-brake mechanism remains in use. Wilwood Engineering designs and manufactures the disc brake systems and components used throughout its motorsport, street-performance and specialized product range. Bill Wood established Wilwood in 1977, and the company is based in Camarillo, California. Its calipers, brake rotors, valves, master cylinders, brake lines and fittings are selected according to the demands of the whole brake installation.

Technical Details

  • Manufacturer part number: 140-18074-R
  • Rotor specification: Iron, GT Slotted, vented; 13.50 x 0.81 inches
  • Caliper specification: 4-piston Forged Narrow Superlite 4R in Red Powder Coat; radial mount
  • Included service pad compound: BP-22; Stainless pistons
  • Caliper body material: Forged aluminum
  • Hydraulic inlet: 1/8-27 NPT
  • Rotor/hat wheel-stud clearance pattern(s): 5 x 5 in; 5 x 127 mm; match the installed hub/axle pattern
  • Parking arrangement: retain the original parking-brake assembly
  • Hydraulic brake hoses: included; DOT-approved hose kit
  • Wheel clearance: 17-inch wheels may fit; verify the manufacturer’s complete caliper/rotor template for the installed wheel
  • Supplied as one kit with mounting hardware; spindles, hubs, master cylinder and booster are not included

Fitment & Compatibility

For the listed 2007–2018 Wrangler JK configurations, including the model-year-specific two-door and Unlimited applications in the table. The kit retains the original parking-brake arrangement; verify the original brake package and five-lug 5 x 5-inch hubs.

Installation requires modification of the original dust shields as detailed in DS1639. The kit supplies the application’s 20-inch hydraulic hoses; route them to avoid stretch or contact through suspension travel.

The table below provides the full application breakdown; match its year, model and brake-configuration details.

Manufacturer Resources

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.

With over 20 years of parts and fitment experience, PMB Performance can help review the intended brake installation. Provide your VIN, wheel measurements and any modified axle or spindle details when asking about compatibility.

Vehicle Applications

Years Make Model Submodel Model option Front brakes Rear brakes Kit application Notes
2007-2013 Jeep Wrangler 4 x 2 & 4 x 4 Left Hand Drive Disc Disc Rear Kit 1, 2
2007-2013 Jeep Wrangler 4 x 4 Right Hand Drive Disc Disc Rear Kit 1, 2
2014-2017 Jeep Wrangler Rubicon Rubicon Disc Disc Rear Kit 1, 2
2014-2017 Jeep Wrangler Sahara Sahara Disc Disc Rear Kit 1, 2
2014-2017 Jeep Wrangler Sport Sport Disc Disc Rear Kit 1, 2
2014-2017 Jeep Wrangler Unlimited Rubicon Unlimited Rubicon Disc Disc Rear Kit 1, 2
2014-2017 Jeep Wrangler Unlimited Sahara Unlimited Sahara Disc Disc Rear Kit 1, 2
2014-2017 Jeep Wrangler Unlimited Sport Unlimited Sport Disc Disc Rear Kit 1, 2
2014 Jeep Wrangler Unlimited Willys Wheeler Unlimited Willys Wheeler Disc Disc Rear Kit 1, 2
2014 Jeep Wrangler Willys Wheeler Willys Wheeler Disc Disc Rear Kit 1, 2
2016 Jeep Wrangler 75th Anniversary 75th Anniversary Disc Disc Rear Kit 1, 2
2016 Jeep Wrangler Sport S Sport S Disc Disc Rear Kit 1, 2
2016 Jeep Wrangler Unlimited 75th Anniversary Unlimited 75th Anniversary Disc Disc Rear Kit 1, 2
2016 Jeep Wrangler Unlimited Sport S Unlimited Sport S Disc Disc Rear Kit 1, 2
2018 Jeep Wrangler JK Rubicon Rubicon Disc Disc Rear Kit 1, 2
2018 Jeep Wrangler JK Sahara Sahara Disc Disc Rear Kit 1, 2
2018 Jeep Wrangler JK Sport Sport Disc Disc Rear Kit 1, 2
2018 Jeep Wrangler JK Unlimited Rubicon Unlimited Rubicon Disc Disc Rear Kit 1, 2
2018 Jeep Wrangler JK Unlimited Sahara Unlimited Sahara Disc Disc Rear Kit 1, 2
2018 Jeep Wrangler JK Unlimited Sport Unlimited Sport Disc Disc Rear Kit 1, 2

Application Notes

  1. Line kit included (manufacturer): 220-13968 (20.00 in)
  2. Rear line-kit reference: 220-13968