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

Wilwood Rear 13.50-Inch SRP Conversion — Red FNSL4R for Jeep Wrangler JK (2007–2018)

SKU: 140-18074-DR

$2,290.94 Sale
Shipping calculated at checkout.

Fitment questions?

Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

Shipping policyRefund policy

Product details

For the listed Wrangler JK applications, Wilwood pairs red FNSL4R calipers with 13.50-inch SRP rotors and BP-22 pads. This is a hydraulic rear brake kit with retained OE parking hardware, not an electric parking-brake conversion. Based in Camarillo, California, Wilwood Engineering has designed and manufactured disc brake systems and components since Bill Wood founded the company in 1977. Its work spans motorsport, street-performance and specialized applications, with a product range covering master cylinders, calipers, brake rotors, valves, fittings and brake lines. These parts must be chosen for the requirements of the entire brake system.

Technical Details

  • Manufacturer part number: 140-18074-DR
  • Service calipers: Forged Narrow Superlite 4R; 4 pistons; radial mount; Red Powder Coat
  • Brake rotors: 13.50 x 0.81 inches; Iron; SRP Drilled & Slotted; vented construction
  • Pads: BP-22; piston material: Stainless
  • 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.

Confirm the applicable vehicle entry and all numbered notes in the fitment table below.

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.

For fitment help, contact PMB Performance with your VIN and details of any axle, spindle or brake changes. Our team has over 20 years of experience checking parts and fitment, including the dimensions that a model-year search cannot establish.

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