Caliper FDL 1.75in Piston x .810 Rotor

The Caliper FDL 1.75in Piston x .810 Rotor by Wilwood is a fixed-mount disc brake caliper engineered for high-performance street and track applications where stopping power, heat dissipation, and reliability are non-negotiable. This caliper is designed for serious automotive enthusiasts and mechanics upgrading factory brake systems or building dedicated performance vehicles that demand consistent, fade-resistant braking under aggressive driving conditions. Whether you're running a custom street rod, autocross competitor, or road-course project, this Wilwood caliper delivers the thermal capacity and mechanical precision required for repeatable stops without brake fade.

The FDL (Fixed Disc Low-profile) design features a robust 1.75-inch piston that generates substantial clamping force across a .810-inch rotor, maximizing friction surface engagement and thermal mass for extended cooling cycles. Wilwood's fixed-caliper architecture eliminates the flex and deflection common in floating designs, ensuring consistent pad-to-rotor geometry through hard braking events and temperature swings. The forged aluminum body resists warping while the large piston area reduces line pressure requirements, making the system more responsive to driver input and compatible with both manual and power brake boosters. At 3.55 pounds, this compact caliper integrates seamlessly into custom brake kit configurations without excessive unsprung weight penalties.

This caliper excels in front-axle installations on vehicles ranging from lightweight roadsters to modern performance cars requiring OEM-equivalent or superior braking response. Mechanics routinely pair the Caliper FDL 1.75in Piston x .810 Rotor with Wilwood's complementary rotors, pads, and fluid lines to construct complete brake systems that outperform factory hardware at a fraction of the cost and complexity. Verify rotor compatibility, brake line routing, and parking brake integration before installation; this fixed caliper suits applications where dedicated performance braking is prioritized over everyday convenience features.