Caliper FDLI 1.75in Piston 1.10in Rotor

The Caliper FDLI 1.75in Piston 1.10in Rotor from WILWOOD is a high-performance hydraulic disc brake component engineered for demanding tactical and automotive applications where consistent stopping power and thermal management are non-negotiable. This fixed-mount caliper assembly serves operators and engineers who require reliable braking performance in vehicles exposed to sustained heat cycles, rapid deployment scenarios, and variable-load conditions typical of military, law enforcement, and specialty vehicle platforms. The FDLI designation identifies this as a fixed dual-piston architecture, meaning both pistons remain stationary during brake engagement—a configuration preferred in high-duty applications where brake fade resistance and predictable modulation are critical to mission success.

Built with WILWOOD's precision-cast iron construction, the Caliper FDLI features a 1.75-inch piston bore paired with a 1.10-inch rotor compatibility specification, delivering balanced clamping force and heat dissipation characteristics across wide operating temperature ranges. The dual-piston design generates parallel pad pressure that minimizes rotor deflection and extends pad life—critical advantages in vehicles subject to repeated emergency stopping events. Fixed-mount calipers eliminate the flex and compliance inherent in floating designs, resulting in shorter brake modulation response times and enhanced consistency across successive brake applications. The compact footprint (6 x 4 x 9 inches) and modest 3.65-pound weight permit integration into space-constrained platforms without compromising structural rigidity or thermal capacity.

This caliper assembly suits tactical vehicle builders, law enforcement fleet engineers, and motorsports applications requiring OEM-equivalent or upgrade-level braking performance. Compatibility assessment requires verification against existing rotor diameter and hub-mounting geometry; WILWOOD's extensive catalog enables drop-in replacement on vehicles originally equipped with comparable brake packages or serves as a foundation component in custom brake system builds. Installation demands proper brake fluid specification (DOT 3/4 compatible), precise pad selection matched to your rotor material and operating duty cycle, and system-wide bleeding to eliminate air pockets. Consult WILWOOD's application guides or a qualified hydraulic systems technician to confirm fitment before ordering.