JK big brake kit
Slotted rotorStandard rotor


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Product Description

The TeraFlex JK front big brake kit is designed as a factory brake upgrade for JK owners looking for a performance brake package that will handle the increased

braking requirements needed after larger wheels and tires are used. The simple bolt on upgrade installation requires no cutting, welding or adapter brackets.

Available with standard or slotted rotors

• Oversized 56mm dual piston caliper increases clamping force and surface area

• 13.3” slotted rotor for superior stopping performance

• Mill-balanced vented rotors for maximum heat dissipation

• Composite-resin, semi-metallic pads increase pad life and reduce noise & dust

• Improved braking performance over factory brake system

• 100% bolt-on upgrade for easy installation


A minimum of 17” diameter wheels must be run with the big brake kit.

The Heavy Duty Master cylinder Part# 4303450 is recommended. 

2007-2011 JKs have a greater need and we highly recommend this master cylinder for those applications.

2012+ JKs feature a larger factory master cylinder and may not need a larger master cylinder kit.

Additional Information


Standard, Slotted