TeraFlex Big Brake Kit Delta Front And Rear Jeep Wrangler JK 2007-2018/ JL 2018-2021/ Gladiator 2020-2021



  • Improved Stiffness
  • Steel, Bend-Resistant Bridge
  • Built-In Auto Bleeding
  • 14" x 1-1/4" Vented Rotors

TeraFlex Front and Rear Delta Big Brake Kit for 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018 Jeep JK Wranglers, for 2018, 2019, 2020 and 2021 JL Wranglers, and for 2020-2021 Jeep Gladiators.

Balance of the power of your 2007-2021 Jeep JK or JL Wrangler or your 2020-2021 Jeep Gladiator with TeraFlex's Front and Rear Delta Big Brake Kit 4403450. This big brake kit includes premium brake rotors and pads for optimized oversized wheel and tire packages. In order to work under heavy duty applications, TeraFlex uses high-modulus materials to perform under high pressure and release braking.

Features and Benefits:
- Balanced front to rear brakes tuned specifically for lifted Wranglers
- Opposed 4-piston caliper design with 2” pistons
- EPDM synthetic boot material to keep contaminants away from piston
- Four-piece high-modulus, steel bridge caliper design
- Heat-treated 4140 cast steel bridge with T6 6061 forged aluminum piston housings
- Low-profile bridge accepts 14” diameter rotors behind 17” wheels
- Calipers feature built-in auto bleeding check ball, valve, and spring
- Massive 14” x 1.25” vented rotors for superior stopping performance
- Proprietary composite-resin, semi-metallic pads

The ultimate upgrade for JL/JLU and JK/JKU Wrangler models and for Gladiators with oversized and heavier wheels/tire combos that require increased braking power and performance. Now your 33-42” tires or heavy-laden overland rigs can thrive on the required components to upgrade both front and rear axles. TeraFlex includes proprietary composite-resin, semi-metallic pads for full temperature stopping power that maximizes initial speed scrub with increased pad life while preventing noise from trapped dust.

In order to run the Delta front and rear big brake kit, four pistons move each side half the distance, unlike the factory two-piston distance. To house these pistons is a caliper forged aluminum that measures a material’s resistance to elastic (recoverable) deformation under load. A stiff material has a high modulus, which means it only changes shape slightly under high elastic loads before returning to its normal shape. The Delta Brake Calipers features a high-modulus bridge made from steel to resist bending or flex to provide consistent braking and modulation during pressure and release. The low-profile bridge design accepts 14-inch rotors on oversized wheels and tires. Each front and rear rotor is made of heat-treated cast iron for superior heat absorption and vented for heat dissipation.

Brake Rotor Fitment:
- JL/JLU Sport front: 12.9” x 0.94” (330mm x 24mm) vented rotors
- JL/JLU Sport rear: 12.9” x 0.47” (328mm x 12mm) solid rotors
- JL/JLU Sahara/Rubicon front: 12.9” x 1.1” (330mm x 28mm) vented rotors
- JL/JLU Sahara/Rubicon rear: 13.4” x 0.55” (342mm x 14mm) solid rotors
- JK/JKU front: 11.9” x 1.1” (302mm x 28mm) vented rotors (U.S.-spec)
- JK/JKU rear: 11.9” x 1.1” (302mm x 28mm) vented rotors (U.S.-spec)

- High-Modulus Brake Caliper Kit w/ pads- front
- High-Modulus Brake Caliper Kit w/ pads - rear
- 14” x 1.25” vented & slotted rotors w/ 5x5” bolt pattern - front
- 14” x 1.25” vented & slotted rotors w/ 5x5” bolt pattern - rear
- All necessary hardware

Additional Notes:
- Requires a minimum wheel diameter of 17 inches.
- On JK/JKU models, stock master cylinder and brake booster upgrade to the Mopar Master Cylinder & Brake Booster Kit (p/n: P5160050) is highly recommended.

Vehicle Fitment:
- 2007-2018 Jeep JK Wrangler
- 2018-2021 Jeep JL Wrangler
- 2020-2021 Jeep Gladiator

California Residents: Proposition 65 Warning

Installation Difficulty


Novice skill is required for this installation.

Vehicle Fitment

This product will fit the following Gladiator years:

  • 2020,
  • 2021,

This product will fit the following Wrangler years:

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