Caliper GM D52 2.38in Piston .810 Rotor

The Wilwood Caliper GM D52 2.38in Piston .810 Rotor is a heavy-duty brake caliper engineered for high-performance and tactical vehicle applications where stopping power and reliability are non-negotiable. Designed for General Motors platforms, this single-piston floating-mount caliper delivers consistent braking force across demanding duty cycles—from patrol operations to sustained off-road tactical deployments. Law enforcement and military personnel who run modified or purpose-built vehicles depend on premium brake components to maintain vehicle control under extreme conditions, making this Wilwood unit an industry-standard choice for operators who cannot afford brake fade or failure.

The D52 caliper features a single 2.38-inch piston paired with a 0.810-inch thick rotor and 12.190-inch outside diameter, providing superior heat dissipation and thermal stability under sustained braking loads. Constructed from lightweight aluminum with gray anodized finish, the caliper resists corrosion while maintaining structural integrity in salt-spray and high-moisture environments common to coastal operations. The 7.060-inch floating mount design allows the caliper to self-center on the rotor, reducing uneven pad wear and extending service life—critical for vehicles operating in remote areas where maintenance intervals are extended. Weighing 4.46 pounds, this compact assembly minimizes unsprung mass while delivering the clamping force tactical operations demand.

This caliper suits operators upgrading GM-platform vehicles for duty or training use, including full-size trucks and SUVs used in law enforcement pursuit and tactical transport roles. Installation requires verification of rotor compatibility (0.810-inch thickness specification) and pad selection matched to intended duty cycle—high-friction compounds are recommended for emergency response vehicles. The gray anodized aluminum finish withstands repeated thermal cycles and harsh cleaning protocols standard in fleet maintenance. For precision fitment and bleeding procedures, consult your GM service manual or contact a specialist brake technician familiar with floating-mount systems to ensure optimal performance and safety compliance.