Wilwood 140-17574-DR UTV6 Rear Disc Brake Kit with 11.25" Drilled Rotors

The Wilwood 140-17574-DR is a UTV6 rear disc brake kit engineered to deliver substantially improved stopping power for high-performance side-by-side machines. Designed around Wilwood's proven UTV6 platform, this kit pairs a fixed-mount six-piston forged aluminum caliper with an 11.25" diameter dynamically mounted lug-drive drilled rotor for a significant upgrade over OEM rear brakes.

Key Features:

• UTV6 Six-Piston Caliper: Forged aluminum differential-bore six-piston caliper reduces flex and deflection for more uniform pad engagement, resulting in greater clamping force and improved brake feel
• 11.25" Drilled Dynamic Mount Rotor: High-friction steel rotor is up to 20% larger in diameter and thicker than OEM units for increased brake torque and reduced distortion under heat
• Lug-Drive Dynamic Mount System: Rotors float dynamically on the hub to reduce thermal stress and prevent piston knockback caused by rough terrain and high-speed off-road use
• Non-Vented Drilled Design: Drilled rotor surface promotes heat dissipation and helps clear debris in demanding off-road conditions
• Direct-Fit Replacement: Kit includes all necessary mounting hardware, caliper bracket, rotor, and hardware for a complete bolt-on installation using stock OEM wheel studs
• BP-28 High-Friction Brake Pads: Race-compound pads included deliver aggressive bite and strong fade resistance under sustained braking loads

The 140-17574-DR is designed to be used as part of Wilwood's matched front and rear UTV brake system, providing balanced braking performance front to rear. The kit is designed to work with stock OEM wheel studs and requires a minimum 15" diameter wheel for proper clearance. Installation utilizes existing upright and hub mounting points for a straightforward upgrade.