Wilwood 140-13877 Tactical Extreme TX6R Big Brake Front Brake Kit

The Wilwood Tactical Extreme TX6R Big Brake Front Kit (140-13877) is a heavy-duty, bolt-on disc brake upgrade engineered for trucks, SUVs, and armored vehicles that demand maximum stopping power under extreme conditions. Designed from the ground up for severe-duty service, this kit replaces the front rotors, pads, and calipers with purpose-built performance components.

At the heart of the system are TX6R radial-mount six-piston forged billet aluminum calipers paired with massive 15.00"–16.00" GT-60 directional vane Spec-37 alloy rotors. The vented rotor design promotes rapid heat dissipation, while the directional vane configuration ensures optimal airflow during sustained high-heat braking events. The calipers are volume-matched for full compatibility with the factory OE power brake system output, so no master cylinder or brake booster upgrades are required.

Key Features:

• TX6R radial-mount 6-piston forged billet aluminum calipers
• 15.00"–16.00" GT-60 directional vane Spec-37 alloy rotors (vented construction)
• Rotor thickness: 1.500 in. | Rotor diameter: 16.00 in. (406.40 mm)
• Calipers volume-matched for OE power brake system compatibility
• Radial-mount caliper brackets included for rigid, precision fitment
• Complete hardware kit included — true bolt-on installation
• Minimum recommended wheel diameter: 20 inches
• Available in multiple caliper finish options

What's Included:

• Front TX6R six-piston calipers (pair)
• GT-60 Spec-37 alloy vented rotors
• Brake pads (BP-Q compound)
• Radial-mount caliper brackets
• Complete installation hardware

Note: Braided stainless steel flex lines are required for some applications and must be purchased separately. Front spindles, master cylinder, and brake booster are not included. Parking brake provision is not included.