Wilwood 140-16627-D Rear Disc Brake Kit for UTV Side-by-Side

The Wilwood 140-16627-D is a high-performance rear disc brake kit engineered specifically for UTV and side-by-side applications. This upgrade kit delivers enhanced stopping power and reliability for riders demanding more from their machines in challenging off-road conditions.

Advanced Caliper Design:

The kit features forged aluminum differential-bore multi-piston calipers that provide superior clamping force compared to stock brake systems. The forged construction reduces caliper deflection under heavy braking, ensuring more uniform pad engagement across the rotor surface. This translates to improved braking force, better pedal feel, and more consistent performance during aggressive riding.

High-Performance Rotor System:

Wilwood equips this kit with larger diameter floating rotors constructed from high-friction steel. These rotors are up to 20% greater in diameter than stock components and feature increased thickness to minimize distortion under heat. The dynamic mounting design allows the rotor to float, which reduces thermal stress buildup and prevents piston knockback—a common issue when traversing rough terrain that can cause loss of pedal firmness.

Key Features:

• Fixed-mount multi-piston forged aluminum calipers with differential bore design
• Larger diameter floating rotors for increased brake torque
• High-friction steel rotor construction for improved heat management
• Dynamic rotor mounting prevents piston knockback on rough terrain
• Matched component design optimized for UTV applications
• Direct replacement rear brake upgrade for popular side-by-side models

This complete rear brake kit provides a significant performance upgrade over factory braking systems, ideal for high-powered UTVs used in demanding recreational or competitive environments.