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DBA42633S 4000 T3 Rear Brake Rotor 2018-2021 Jeep Grand Cherokee Trackhawk Durango SRT Hellcat
DBA42633S 4000 T3 Rear Brake Rotor 2018-2021 Jeep Grand Cherokee Trackhawk Durango SRT Hellcat
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DBA 4000 Series T3 Slotted Rear Brake Rotor

DBA
DBADBA42633S
9316391397102
Brake Rotors - Slotted
20+ Units In Stock - Ships Next Business Day
$ 361.45 $ 305.84
$ 305.84

The One-Piece Rear Brake Rotor That Matches the DBA 5000 Series Front on Your Trackhawk or Durango SRT Hellcat

The DBA42633S is DBA's 4000 Series T3 direct-fit one-piece slotted rear brake rotor for the 2012-2021 Jeep Grand Cherokee SRT and Trackhawk and the 2018-2026 Dodge Durango SRT and SRT Hellcat. Featuring DBA's patented T3 tri-directional CNC-machined slot pattern and R KP vented vane design, DBA42633S delivers consistent rear brake performance for high-performance street driving, track days, and club racing. Sold individually; two rotors required per rear axle.

Key Features

  • 350mm outer diameter one-piece rotor engineered to the factory rear brake specification for the Grand Cherokee and Durango SRT platform
  • DBA patented T3 tri-directional CNC-machined slot pattern for quieter, more consistent rear braking
  • T3 slots increase exit points for brake pad dust and gases, maintaining consistent bite during sustained braking
  • R KP vented vane design for continuous cooling airflow through the rotor under load
  • High-carbon alloyed iron construction for superior heat absorption and fade resistance
  • Direct bolt-on replacement with no modifications required
  • DBA 4000 Series T3 recommended for high-performance street, track day, club racing, and heavy off-road applications

Fitment

Year Range Make Model Trim
2012-2021 Jeep Grand Cherokee SRT / SRT8
2018-2021 Jeep Grand Cherokee Trackhawk
2018-2021 Jeep Grand Cherokee Trailhawk
2018-2026 Dodge Durango SRT
2021 Dodge Durango SRT Hellcat
2023-2026 Dodge Durango SRT Hellcat
2018-2026 Dodge Durango R/T
2018-2026 Dodge Durango GT

Specifications

Detail Value
Part Number DBA42633S
UPC 9316391397102
Position Rear
Series 4000 Series T3 (One-Piece)
Outer Diameter 350mm
Brake Disc Thickness 28mm
Minimum Thickness 26mm
Height 64mm
Vane Design R KP Vents
Centering Diameter 72mm
Pitch Circle Diameter 127mm
Number of Holes 5
Surface Design Slotted (T3)
Weight 24.6 lbs / 11.16 kg (each)
Construction One-Piece High-Carbon Alloyed Iron
Quantity Sold Individually (2 required per axle)

What's Included

  • 1x DBA42633S 4000 Series T3 One-Piece Rear Brake Rotor

About DBA

Disc Brakes Australia (DBA) has been engineering performance brake rotors since 1969 and is one of the most respected brake manufacturers in the world. Their 4000 Series T3 rotors are developed and validated on Australian road circuits and race tracks, then engineered for global performance and OEM-replacement applications. DBA's T3 slot pattern is a patented design offering measurable improvements in braking consistency, noise reduction, and long-term pad and rotor wear across both street and track use.

Complete the Set

DBA42633S is the rear rotor that pairs with the DBA 5000 Series T3 two-piece front system for a full brake upgrade on your Trackhawk or Durango SRT Hellcat. Shop the matching front products:

Frequently Asked Questions

Does DBA42633S fit the Jeep Grand Cherokee Trackhawk?

Yes. DBA42633S is a direct-fit rear brake rotor for the 2018-2021 Jeep Grand Cherokee Trackhawk. It is the correct 350mm rear rotor for this platform and installs with no modifications required.

Does DBA42633S fit the Dodge Durango SRT Hellcat?

Yes. DBA42633S fits the 2021 and 2023-2026 Dodge Durango SRT Hellcat rear axle. The Durango SRT Hellcat shares the same rear brake assembly as the Grand Cherokee Trackhawk and broader Durango/Grand Cherokee SRT platform. Note the Durango SRT Hellcat was not produced in 2022.

What is the diameter of the DBA42633S rear rotor?

The outer diameter is 350mm. This is smaller than the 400mm front rotor (DBA53919BLKS) — the rear brake system on this platform uses a 350mm disc while the front uses a 400mm disc. Both are OEM specifications for this platform.

Is DBA42633S a one-piece or two-piece rotor?

DBA42633S is a one-piece rotor from DBA's 4000 Series. Unlike the front DBA53919BLKS which is a two-piece design with a separate aluminum hat, the rear uses a one-piece cast iron construction. There is no separate replacement ring for the rear; when worn, the full rotor is replaced.

How many rotors come in the box?

DBA42633S is sold individually. Two rotors are required to complete one rear axle replacement. Add two units to your cart for a full rear brake job.

What does the T3 slot pattern do?

DBA's T3 tri-directional CNC-machined slot pattern evacuates brake pad dust, gases, and heat from the rotor face during braking. The T3 adds additional exit points compared to a standard slot, improving consistency, reducing fade during repeated hard stops, and minimizing brake squeal under normal operating conditions.

Can I use DBA42633S for track driving?

Yes. DBA specifically recommends the 4000 Series T3 for high-performance street driving, track days, club racing, and heavy off-road applications. The T3 slot pattern and R KP vented vane design are engineered to handle sustained heat cycles that would cause OEM rotors to fade or warp.

Does this rotor require bedding in?

Yes. DBA42633S requires a proper bedding procedure after installation. Perform 8-10 moderate brake applications from 40 mph down to 5 mph, allowing the brakes to cool completely between sessions. Proper bedding seats the pads evenly and maximizes rotor life and performance.

What is the matching front rotor for DBA42633S?

The matching front rotor is the DBA53919BLKS 5000 Series T3 two-piece front brake rotor. Together, DBA42633S rear and DBA53919BLKS front provide a complete DBA brake upgrade for the Trackhawk and Durango SRT Hellcat. Both share DBA's T3 slot pattern for consistent brake feel front to rear.

Does DBA42633S fit the standard Jeep Grand Cherokee SRT (non-Trackhawk)?

Yes. DBA42633S also fits the 2012-2021 Jeep Grand Cherokee SRT and SRT8, which share the same rear 350mm brake assembly. It is a direct replacement for both the standard SRT and the higher-performance Trackhawk variant.

Installation Instructions

  1. Safely lift and support the rear of the vehicle on jack stands. Remove the rear wheel.
  2. Remove the brake caliper without disconnecting the brake line. Hang the caliper with a hook or wire to avoid stressing the hose.
  3. Remove the caliper bracket bolts and set the bracket aside.
  4. Remove the old rear rotor. Tap lightly with a rubber mallet if corroded onto the hub.
  5. Clean the hub flange thoroughly with a wire brush to remove rust and debris.
  6. Mount DBA42633S onto the hub. Secure temporarily with one lug nut to hold it flat against the hub face.
  7. Reinstall the caliper bracket and torque bolts to factory specification.
  8. Reinstall the caliper and torque slide pin bolts to factory specification.
  9. Reinstall the wheel and torque lug nuts to factory specification in a star pattern.
  10. Pump the brake pedal firmly until it feels solid before moving the vehicle.
  11. Perform the DBA bedding procedure: 8-10 moderate stops from 40 mph to 5 mph, then allow full cool-down before driving aggressively.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.

Request For Information

Have questions about DBA 4000 Series T3 Slotted Rear Brake Rotor | 2012-2021 Jeep Grand Cherokee SRT / Trackhawk | 2018-2026 Dodge Durango SRT / SRT Hellcat | DBA42633S? Fill out the form below and we'll get back to you by the next business day.
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