Wilwood Grand National GN6R Calipers- 1.25" Rotor Width


SKU: 120-13947

Grand National GN6R

Grand National GN6R forged aluminum six-piston radial mount calipers bring current state-of-the-art design, materials, and manufacturing technology to this long standing icon in the Wilwood caliper line. With a High-strength forged aluminum body in either hard-anodized or Quick-Silver nickel plate finish and Compatible with rotors from 1.25” to 1.38” thickness and diameters from 12.19” to 13.06”. Two body widths are available for use with .80” (20,3) or .99” (25,0) thick pads. Stainless steel pistons are included base model GN6R anodized calipers. Uses 3.5” or 6.0” center mount bracket kits to replace all previous Grand National caliper models. Grand National GN6R uses 7520 Series brake pads.

Rotor Compatibility
Rotor Width(in) 1.38
Maximum Rotor Width(in) 1.38
Minimum Rotor Width(in) 1.25
Maximum Rotor Diameter(in) 13.06
Minimum Rotor Diameter(in) 12.19

Brake Pad Specifications
Brake Pad Type 1 7520
Brake Pad Type 2 N-A
Brake Pad Type 3 N-A
Total Pad Area (in²) 11.1
Total Pad Volume (in³) 6.9
Piston Specifications
Piston 1 Bore(in) 1.75
Piston 2 Bore(in 1.38
Piston 3 Bore(in) 1.38
Piston 4 Bore(in)
Total Piston Area (in²) 5.40

Mounting Specifications
Mount Type Radial
Mount Side Left Hand / Right Hand
Mount Center(in) 7.09
Mount Hole Size(in) 0.45
Mount Height(in) 2.33
Inlet Thread Size 1/8-27 NPT