Wilwood 120-14861-RD SX6R Forged 6-Piston Radial Mount Caliper - Left Hand, Red

The Wilwood SX6R (120-14861-RD) is a forged six-piston radial mount disc brake caliper finished in Wilwood's signature red. Engineered for heavy-duty road and track applications, this left-hand caliper delivers exceptional stopping power with the rigidity and precision demanded by high-performance builds.

Key Features:

• Six-Piston Design: Multiple piston volume options provide even pad pressure distribution and maximum braking efficiency
• Radial Mounting: Delivers superior caliper rigidity compared to traditional lug-mount designs, reducing flex under hard braking
• Stress-Flow Forged Aluminum Body: The caliper body is stress-flow forged from premium-grade aluminum alloy billet, realigning the metal's internal grain structure to flow within the contour of the caliper body — eliminating stress points created during conventional straight-billet machining
• Superior Strength: The stress-flow forging process results in superior clamping efficiency and ultimate resistance to fatigue, stress, and distortion under load
• Large Rotor Compatibility: Supports rotor diameters up to 15.00 inches, making it suitable for the most demanding heavyweight braking applications
• Exclusive Dust Wiper Seals: Innovative dust wiper seal system protects pistons and bores from dust and corrosion, extending service life and enabling use on street-registered vehicles in regions requiring environmentally sealed calipers
• Left-Hand Orientation: Designed specifically as a left-hand (driver-side) caliper; pair with the corresponding right-hand caliper for a complete axle setup
• Red Finish: Wilwood signature red high-temp powder coat finish for a clean, professional appearance under any wheel

The SX6R series is built on decades of Wilwood motorsport engineering, incorporating race-proven technology into a versatile platform suited for drag racing, road racing, high-performance street builds, and heavy-vehicle brake upgrades. The combination of forged construction, radial mounting, and multi-piston design makes the SX6R one of the most capable calipers in Wilwood's lineup.