Wilwood Caliper-GN6R-R/H-Black Ano (.80 Thk Pad) 1.75/1.38/1.38in Pistons 1.38in Disc

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 and Thermlock® pistons in the GN6R/ST models. Uses 3.5” or 6.0” center mount bracket kits to replace all previous Grand National caliper models.

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

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Reference Information

Brake Caliper, Grand National GN6R Radial Mount, Aluminum, Gray Anodized, 6-piston, Passenger Side, Each

Wilwood Grand National GN6R radial-mount brake calipers bring state-of-the-art design, materials, and manufacturing technology to this long-standing icon in the Wilwood caliper line. Their high-strength forged aluminum body is either hard-anodized or finished in Quick-Silver nickel plating—and they're compatible with rotors from 1.25 in. to 1.38 in. thickness, and diameters from 12.19 in. to 13.06 in. Two body widths are available for use with .80 in. (20,3) or .99 in. (25,0) thick pads. Stainless steel pistons are included in the base model GN6R anodized calipers; and Thermlock pistons in the GN6R/ST Quick-Silver nickel plate models. Simply put, Wilwood Grand National GN6R radial mount brake calipers provide unmatched stopping power in extreme conditions in a variety of competition vehicles.

Additional features include:
• Six-piston caliper design
• Forged aluminum anodized body with stainless pistons
• Unique six-piston differential bore configuration provides balanced loading for even pad wear in sustained high-heat environments
• Stress-flow forging re-aligns the metal's internal grain structure to flow within the contour of the caliper body
• Radial mounting simplifies installation; kit offers a couple adjustment planes for accurate alignment over the disc
• Uses 3.5 in. or 6.0 in. center mount bracket kits (sold separately) to replace previous Grand National caliper models
• Calipers include Wilwood logo