Wilwood Jeep Gladiator JT Rear Brake Conversion (2020–2021), Red Superlite 4R Calipers, SRP Rotors and Braided Hoses

Red Superlite 4R calipers and 14-inch SRP rotors serve listed Jeep Gladiator JT rear applications. Confirm wheel clearance and original parking hardware. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components. Bill Wood founded the company in 1977. Its calipers, brake rotors, valves, master cylinders, brake lines and fittings serve street-performance, motorsport and specialized applications. Select each component according to the requirements of the complete braking system.

Technical Details

• Service-brake configuration: 4-piston Forged Narrow Superlite 4R; Red Powder Coat
• Brake pad selection supplied: BP-20
• Caliper fluid connection: 1/8-27 NPT
• Caliper mounting: Radial; piston material: stainless steel
• Rotor assembly dimensions and material: 14.00 × 0.81 inches; Iron; vented; SRP Drilled & Slotted
• Nominal wheel diameter reference: 18 in; verify the complete clearance drawing
• Rotor / hub bolt-circle specification: 5 x 5 in; 5 x 127 mm
• Included installation items: mounting hardware
• Hydraulic flexlines: Included; 220-16180 (20.00 in)
• Quantity: Sold as a kit.
• Separate components required: spindles, wheel hubs, master cylinder, brake booster
• Manufacturer part number: 140-16179-DR
• Kit function: Rear Brake Kits - Street Performance; rear position

Fitment & Compatibility

The listed 2020–2021 Jeep Gladiator JT applications retain the original internal parking brake arrangement. Check the Overland, Rubicon, Sport and listed 2021 trim rows individually rather than applying an open-ended year claim. DS-1393 requires the rear dust shield to be cut for rotor clearance; have that work performed by a competent installer. The included 20-inch braided flexlines must clear moving suspension and wheel parts throughout travel. The original hub is reused. Check the actual wheel shape with the manufacturer diagram; an 18-inch nominal diameter alone is insufficient.

Use the fitment table below to check each listed year, model and brake configuration alongside these installation requirements.

Wilwood product specifications · Installation instructions

PMB Performance has more than 20 years of parts and fitment experience. Provide the model, year, installed spindle or hub, existing brake package and wheel measurements so we can help check the complete conversion.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.