Overview
The TeraFlex Delta front and rear brake kit 4403450 (TER4403450) is a big brake kit for the 2007-2018 Jeep Wrangler JK, the 2018-2021 Wrangler JL and the 2020-2021 Gladiator JT, with a 5×5 bolt pattern. It includes everything needed to upgrade both axles.
The Delta kit is an upgrade for Jeeps with oversized and heavier wheel and tire combinations, and it suits 33-42 inch tires or heavy-loaded overland rigs. The Delta calipers use a high-modulus bridge, a material that changes shape only slightly under load before returning to its normal shape.
The kit pairs the larger calipers with vented and slotted rotors for heavier wheel and tire combinations on both the Wrangler and the Gladiator.
Key features
- Front and rear axle kit
- Delta calipers with a high-modulus bridge
- Vented and slotted rotors
- Natural caliper color
- 5×5 bolt pattern
- Aimed at 33-42 inch tires
Braking with bigger tires
Larger tires add rotating weight and raise the load on each stop, which makes the stock brakes work harder on long descents. Brake fade and longer stopping distances are the usual signs that the system is being pushed. A larger rotor and caliper combination spreads that heat load over more pad and rotor area, which helps stopping consistency when the vehicle is loaded.
Brake upgrades work as a system. Pads, fluid, lines and the master cylinder should suit the new calipers and rotors, and the wheel bearings and hubs carry the extra mass. Bleed the system with fresh fluid during installation and bed the new pads gradually before heavy use. Check the pad thickness and rotor surface at each tire rotation.
- Use brake fluid rated for your system
- Replace pads and rotors as a matched set
- Inspect brake lines for chafing after installation
- Check caliper bolts after the first few stops
Specifications
| Brand | TeraFlex |
|---|---|
| Part number | TER4403450 |
| Axles covered | Front and rear |
| Caliper type | Aftermarket |
| Rotor type | Vented and slotted |
| Caliper color | Natural |
| Bolt pattern | 5×5 |
| Fit type | Direct fit |
Vehicle fitment
It fits the 2007-2018 Jeep Wrangler (JK), the 2018-2021 Wrangler (JL) and the 2020-2021 Gladiator (JT).
Vehicles with a different bolt pattern are not covered; this kit is for 5×5. Confirm your vehicle’s year, model and trim before ordering.
What’s included
Components to upgrade both the front and rear axles.









