Jeep Gladiator 2020-2023 Street Challenge Rear Brake System Natural-Anodize Finish

Upgraded Rear Braking for the Gladiator Without Overcomplicating the Setup

The RFK.572.03 Rotora Street Challenge Rear Brake System brings a straightforward, effective rear brake upgrade to the 2020-2023 Jeep Gladiator. It pairs a 4-piston RF419 caliper with a 328x28mm 1-piece rotor, giving your Gladiator improved rear stopping power to match a front brake upgrade or simply to even out braking balance on a stock front setup.

Key Features

• 4-piston RF419 forged aluminum rear calipers for reliable, even clamping force
• 328x28mm 1-piece rotors, a durable and cost-effective rotor design
• Available in slotted or drilled rotor configurations to match your driving style
• Ten color options including a premium Zinc natural anodize finish
• Direct bolt-on design engineered specifically for the 2020-2023 Jeep Gladiator
• Includes all hardware, lines, and pads needed for a complete rear brake upgrade
• Backed by a 1-year Rotora warranty

Fitment

Specifications

What’s Included

• 2x RF419 forged aluminum rear calipers
• 2x 328x28mm 1-piece rotors
• Braided stainless brake lines
• Mounting brackets and hardware kit
• Performance brake pads

About Rotora

Rotora designs and manufactures high-performance big brake kits for street, track, and off-road applications. The RFK.572.03 kit uses a proven 1-piece rotor and forged 4-piston caliper design to deliver dependable rear stopping power without unnecessary complexity, backed by Rotora’s testing and engineering standards for demanding vehicles like the Jeep Gladiator.

Related Parts on Our Site

• Jeep Gladiator 2020-2023 Street Challenge Front Brake System (RFK.571.04)

FAQ

What is the RFK.572.03?

The RFK.572.03 is a Rotora Street Challenge rear brake system for the 2020-2023 Jeep Gladiator, featuring 4-piston RF419 forged calipers and 328x28mm 1-piece rotors. It is a direct bolt-on upgrade over the factory rear brakes.

Should I choose slotted or drilled rotors?

Slotted rotors clear gas and debris from the pad surface and hold up well under sustained heavy use, making them a strong choice for towing or off-road driving. Drilled rotors offer sharper initial bite and a more aggressive look but are typically better suited to lighter street use since they can be more prone to stress cracking under extreme heat.

What color options are available for this kit?

This kit is offered in Natural Anodize (Zinc), Red, Orange, Yellow, Green, Light Metallic Blue, Dark Metallic Blue, Silver, Black Hard-Anodize, and White, so you can match the calipers to your Gladiator’s look.

What years and trims does this kit fit?

This Rotora rear brake system is designed specifically for the 2020-2023 Jeep Gladiator Sport, Rubicon, Mojave, and Overland trims.

Why does the Zinc finish cost more than the other colors?

The Zinc natural anodize finish uses a more involved anodizing process than the standard color finishes, which is why it carries a higher price point than the other nine available colors.

How does this kit compare to the RFK.572.04?

The RFK.572.03 uses a 1-piece 328x28mm rotor and 4-piston RF419 caliper, while the RFK.572.04 steps up to a larger 2-piece floating rotor design for greater heat capacity. The RFK.572.03 is the more budget-friendly rear option in the lineup.

How difficult is installation?

Installing this rear brake system requires intermediate mechanical skill and standard hand tools. Most experienced installers or shops can complete the rear brake swap in a few hours, though professional installation is recommended if you are not comfortable with brake system work.

Is there a break-in procedure for new brakes?

Yes. New pads and rotors should be broken in with a series of moderate stops from around 45 mph down to 10 mph, allowing full cooling between stops, and avoiding hard braking or extended highway driving for the first 200 to 300 miles.

How many pistons does the caliper have?

Each RF419 rear caliper in this kit uses a 4-piston forged design for reliable, even clamping force across the rotor.

What size are the rotors?

The kit uses 328x28mm 1-piece rotors sized to clear the Gladiator’s factory wheels while delivering a meaningful upgrade over the stock rear brakes.

What warranty comes with this brake system?

The RFK.572.03 is backed by a 1-year Rotora warranty covering manufacturing defects in the calipers and rotors.

Install Instructions

1. Park the Gladiator on a level surface, engage the parking brake release procedure per your service manual, and loosen the rear wheel lug nuts before lifting the vehicle and securing it on jack stands.
2. Remove the rear wheels and disconnect the factory brake line from the caliper, capping it to prevent fluid loss and contamination.
3. Remove the factory caliper, bracket, and rotor, then clean the hub and axle mounting surfaces thoroughly.
4. Install the new mounting brackets supplied with the kit, torquing all hardware to manufacturer specification.
5. Mount the new 328x28mm rotor onto the hub, followed by the RF419 caliper and pads, and secure with the provided hardware.
6. Connect the new braided stainless brake lines to the caliper and to the factory hard line, then bleed the brake system to remove all air.
7. Reinstall the wheels, torque the lug nuts to spec, and lower the vehicle.
8. Check fluid level, pump the brake pedal to confirm firm engagement, and road test at low speed before returning to normal driving.
9. Follow the recommended break-in procedure for the first 200 to 300 miles before subjecting the brakes to hard use.

WARNING: This product can expose you to chemicals including brake dust, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.