Forged S/L Caliper 1.625 /1.25

The Wilwood Forged S/L Caliper 1.625/1.25 (part number 120-11133) is a lightweight, four-piston brake caliper engineered for high-performance applications requiring precision stopping power and minimal unsprung weight. Constructed from aluminum and finished in gray anodize, this superlite caliper delivers the thermal management and response characteristics demanded in demanding duty cycles—from closed-course training to heavy-braking scenarios where sustained stopping performance is non-negotiable.

The caliper is rated for 13.060-inch rotor diameter with 1.250-inch rotor thickness and features a 3.500-inch lug mount configuration. The four-piston design provides balanced pad pressure across the rotor surface, reducing brake fade during repeated high-energy stops and enhancing modulation—critical for tactical vehicles operating at speed or managing load shifts during emergency maneuvers. The forged aluminum construction keeps the assembly at 5.45 lbs, reducing rotational mass and improving brake response time without sacrificing structural rigidity under sustained pressure.

This caliper suits operators and builders integrating premium braking systems into platforms requiring a proven, compact caliper with repeatable performance. The Wilwood Forged S/L series is recognized in both motorsport and specialty vehicle applications for delivering consistent pedal feel and fade resistance in environments where brake reliability directly impacts safety margins. Compatibility with standard 13-inch rotor setups and straightforward lug mounting make integration into existing or custom brake systems straightforward for experienced technicians.

Wilwood brake components are selected by builders who prioritize measured performance over marketing claims. The gray anodized finish provides corrosion resistance while allowing easy visual inspection for wear and damage. This is a single caliper (not a pair)—confirm your application requires one unit before purchase, as full brake system upgrades typically require matched left and right calipers.