Brand: Wilwood Disc Brakes
Manufacturer's Part Number: 120-13947
Part Type: Brake Calipers
Product Line: Wilwood Grand National GN6R Radial Mount Brake Calipers
Automotive Fittings Part Number: WIL-120-13947
UPC: 889545071108
Caliper Series: Grand National GN6R
Caliper Piston Quantity: Six
Piston Diameter (in.): 1.750/1.380/1.380
Rotor Thickness (in.): 1.380 in.
Caliper Material: Aluminum
Caliper Color: Gray/Silver
Caliper Logo: Wilwood
Parking Brake Provision: No
Fittings Included: No
Fitting Attachment 1: Female threads
Thread Size: 1/8 in. NPT
Brake Pads Included: No
Brackets Included: No
Remanufactured: No
Quantity: Sold individually.
Notes: Accepts 7520 pad type.
Description:
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