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

Wilwood Rear Red GT Rotor Kit for Gladiator JT (2020–2021) — 13.50-Inch FNSL4R Brakes

SKU: 140-18076-R

$2,290.94 Sale
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Fitment questions?

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

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Product details

Red radial-mount Superlite calipers and GT-slotted rear rotors identify this Gladiator JT conversion. Wilwood retains the OE parking brake and supplies the hose set for the 13.50-inch hydraulic brake package. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Founded by Bill Wood in 1977, the company also produces the individual calipers, brake rotors, master cylinders, valves, fittings and brake lines used in these installations. Selection should account for how each component works within the complete brake system.

Technical Details

  • Manufacturer part number: 140-18076-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 2020–2021 Gladiator JT applications specifically listed below, including year-dependent Sport, Sport S, Overland, Rubicon, High Altitude and Willys versions. Confirm the OE parking-brake configuration and 5 x 5-inch wheel pattern.

The original dust shields require modification using the layout in DS1639. Supplied 20-inch hoses must be routed and checked at the suspension’s full range of movement.

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.

PMB Performance brings over 20 years of experience with brake components and fitment details. Send us your VIN together with the installed axle, spindle, brake and wheel specifications if you need help confirming this package.

Vehicle Applications

Years Make Model Submodel Model option Front brakes Rear brakes Kit application Notes
2020-2021 Jeep Gladiator Overland Overland Disc Disc Rear Kit 1, 2
2020-2021 Jeep Gladiator Rubicon Rubicon Disc Disc Rear Kit 1, 2
2020-2021 Jeep Gladiator Sport Sport Disc Disc Rear Kit 1, 2
2021 Jeep Gladiator High Altitude High Altitude Disc Disc Rear Kit 1, 2
2021 Jeep Gladiator Sport S Sport S Disc Disc Rear Kit 1, 2
2021 Jeep Gladiator Willys Willys Disc Disc Rear Kit 1, 2
2021 Jeep Gladiator Willys Sport Willys Sport Disc Disc Rear Kit 1, 2

Application Notes

  1. Line kit included (manufacturer): 220-16180 (20.00 in)
  2. Rear line-kit reference: 220-16180