Thursday, March 26, 2015
Caliper No.: 120-10525-RD
D8-4 Caliper

Wilwood D8-4 Caliper Front Caliper

Wilwood D8-4 Caliper Front Caliper zoom image
D8-4 Caliper Front
D8-4 front calipers are a direct bolt-on replacement for the OE factory front calipers on all 1965-82 Corvettes. Forged billet aluminum bodies, stainless steel pistons, and high temperature seals put an end to the rust, bore pitting, and seal failures that plague the original cast iron caliper design.  

D8-4 calipers mount in the stock location over stock rotors and use the original type D8 brake pads. These calipers fit inside 1967 and later production steel rally wheels and most of the later model alloy wheels. Original steel “JK” code wheels from 1965-66, and some aftermarket alloy replica wheels, will requires a 3/16” or thicker wheel spacer for clearance.   Continue >>

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Product Number: 120-10525-RD     Price: $350.99
D8-4 Caliper Front - Product Summary
Count: Area (in²): Type: Dust Boot:
4 5.56 Stainless
Rotor Dimensions
Rotor Width(In): Rotor Diameter(In):
1.25 11.75
Pad Dimensions
Pad Area (in²): Pad Volume (in³):
Mount Center(In): Mount Type: Mount Side:
7 Lug Universal
Duty Rating & Material
Material: Weight(Lbs):
Aluminum 6.3
Colors & Finishes
Color: Finish
Red Red Powder Coat
Product Documents
Full Product Product Data Sheet Installation Instructions
Click To View Click To Download
Vehicle Applications
Product Specifications
Rotor Compatibility
Rotor Width(In): 1.25
Maximum Rotor Width(In): 1.25
Minimum Rotor Width(In): 1.17
Maximum Rotor Diameter(In): 11.75
Minimum Rotor Diameter(In): 11.75
Brake Pad Specifications
Brake Pad Type 1: D8
Brake Pad Type 2:
Brake Pad Type 3:
Total Pad Area (in²):
Total Pad Volume (in³): 3.9
Pad Dimensions & Part Numbers
Pad Dimensions for the D8-4 Caliper Front

Pad Dimensions for the D8-4 Caliper Front zoom image
Piston Specifications
Piston 1 Bore(In): 1.88
Piston 2 Bore(In): 1.88
Piston 3 Bore(In):
Total Piston Area (in²): 5.56
Mounting Specifications
Mount Type: Lug
Mount Side: Universal
Mount Center(In): 7
Mount Hole Size(In):
Mount Height(In): 1.83
Inlet Thread Size: 1/8-27 NPT
Mount Dimensions & Part Numbers
Dimensions for the D8-4 Caliper Front

Dimensions for the D8-4 Caliper Front zoom image
Parts & Accessories
O-Ring Kit: 130-11197
Replacement Dust Boot:
Replacement Piston 1: 200-7521
Replacement Piston 2: 200-7521
Replacement Piston 3:
Replacement Piston 4:
Cross-Over O-Ring Kit: 130-10540
Bridge Bolt Kit:
Wear Plate L/H: 300-10523
Wear Plate R/H: 300-10523
Pad Retainer:
Bleed Screw Kit:
Self Bleeder Tube:
Cross-Over Tube: