Wilwood 120-10525-RD D8-4 Four-Piston Front Brake Caliper, Red

The Wilwood D8-4 four-piston front brake caliper is a high-performance direct replacement for factory calipers on 1965-82 Chevrolet Corvettes. Precision-machined from forged billet aluminum, this caliper delivers exceptional strength while significantly reducing unsprung weight compared to original cast iron units.

Key Features:

• Forged billet aluminum body for superior strength-to-weight ratio
• Stainless steel pistons resist corrosion and provide consistent performance
• High-temperature seals engineered for competition-level braking
• Direct bolt-on installation in factory caliper location
• Compatible with original D8-style brake pads and stock rotors
• Maintains OE piston volume for balanced brake bias
• 1/8"-27 NPT inlet fitting (requires compatible brake line)
• Fits 1967 and later rally wheels and most aftermarket alloy wheels

Installation Notes:

• 1965-66 "JK" code steel wheels and some replica wheels require 3/16" minimum wheel spacer for clearance
• Requires brake flexline with 1/8"-27 NPT female end
• No master cylinder or proportioning valve changes required

Developed using advanced FEA design and 3-D modeling technology, the D8-4 caliper delivers positive pedal response, improved clamping efficiency, and enhanced heat dissipation. The high-visibility red finish adds a performance appearance to complement the functional upgrades. Ideal for street performance and track day applications where consistent, fade-resistant braking is essential.