Wilwood Front Superlite 6R Brake Kit for Mazda RX-7 (1993–1995), Black Calipers, 12.88-Inch GT Slotted Rotors

This Wilwood front RX-7 kit pairs black Forged Narrow Superlite 6R calipers with 12.88-inch GT slotted rotors. Separate hats attach the vented Spec-37 iron rings to the existing front hubs. Supplied BP-10 pads and radial brackets form a matched friction-and-caliper conversion for the specified Mazda assembly. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines. Its product range serves motorsport, street-performance, and specialized applications, with individual components selected to match the requirements of the complete brake system.

Technical Details

• Manufacturer part number: 140-11963
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat)
• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Black Powder Coat; radial mounting.
• Piston bores: 1.62, 1.12, 1.12 inches; Stainless pistons. Included pad compound: BP-10.
• Rotors: 12.88-inch diameter × 1.10-inch width; GT Slotted; Spec-37 Iron; Black Electro Coat finish.
• Wheel bolt circles: 5 X 4.50; 5 X 4.75 inches.
• Included: paired calipers, pads, rotors, brackets and assembly hardware, rotor hats.
• Hydraulic flex lines are separate. Master cylinder, booster and spindles are not included; retain or select suitable matching components.
• Conditional minimum wheel diameter: 17 inches. Verify the complete clearance drawing for barrel and spoke offset before purchase.

Fitment & Compatibility

Check the Mazda RX-7 model/year and front hub arrangement against DS817. The vehicle table covers 1993–1995; the manufacturer's instruction header also mentions 1996, which needs separate vehicle verification before extending coverage. Distinct left and right calipers must be installed with their bleeders correctly oriented. Flex hoses are not supplied. Establish spoke depth and barrel clearance from the 17-inch conditional wheel template and inspect the retained hubs before assembling the hats.

Check the individual year, model, submodel and equipment conditions in the fitment table below before ordering.

Wilwood installation documents: Installation instructions.

PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle, axle or spindle details and wheel measurements for fitment help.

California Proposition 65 warning, brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.