Wilwood 120-14861-BK SX6R Forged Radial Mount 6-Piston Disc Brake Caliper - Left Hand Black

The Wilwood SX6R (120-14861-BK) is a forged six-piston radial mount disc brake caliper engineered for extreme-duty street and track applications. Designed as a left-hand unit, this caliper delivers high-capacity braking performance alongside large-diameter rotors, making it Wilwood's largest dual-purpose caliper for show, street, and race vehicles.

Built around a stress-flow forged premium aluminum alloy body, the SX6R's manufacturing process realigns the metal's internal grain structure to follow the contour of the caliper body. This technique eliminates the stress points and grain interruptions created by conventional billet machining, resulting in superior clamping efficiency and outstanding resistance to fatigue, distortion, and structural stress under heavy load.

Key Features:

• Forged six-piston design with staggered piston bores: 1.75 in. and 1.38 in.
• Radial mount configuration for rigid, precise caliper positioning
• Compatible with rotor diameters up to 15.00 inches
• Multiple piston volume options for versatile braking system tuning
• Exclusive dust wiper seal protects piston bores from dust and corrosion
• Suitable for use in environments requiring environmental sealing
• Black powder coat finish for durability and appearance
• Sold individually — left-hand (driver side) caliper

The SX6R series incorporates race-proven technology into a versatile body design adaptable to a wide range of heavy-duty braking requirements. The integrated dust wiper seal system adds an extra layer of protection in adverse conditions, making this caliper equally at home on the track or the street.