Wilwood Front Dynalite Brake Kit for Mazda MX-5 Miata, Black Calipers and 11-Inch GT Rotors

Black four-piston Dynalite calipers and slotted 11-inch rotors convert the documented Mazda MX-5 Miata front brakes. Aluminum hats retain the compatible existing hubs, and the GT rotor configuration uses the specified BP-20 pads. Wilwood Engineering, founded in 1977 by Bill Wood, is based in Camarillo, California. The company designs and manufactures disc brake systems and supplies master cylinders, calipers, brake rotors, valves, fittings and lines for motorsport, street-performance and specialized installations. Select each component around the complete system’s requirements.

Technical Details

• Manufacturer part number: 140-13379
• Application and package: Front Brake Kits - Street Performance; Front Kits; Disc; Sold as a kit.
• Included mechanical components: Mounting hardware: Yes; hub(s): No; spindle(s): No
• Hydraulic components supplied: Master cylinder: No; brake booster: No; brake lines: No
• Specified pad compound: BP-20
• Separate rotor-hat specification: Aluminum; Black E-Coat; offset 0.750 inch; part 170-11682
• Rotor dimensions: 11.00 in; 279.4 mm outside diameter; 0.81 in; 20.57 mm thickness
• Rotor construction: Spec-37 Iron; Vented; GT Slotted
• Caliper assembly: Forged Dynalite Internal; 4 pistons per caliper; Forged Aluminium body; Lug mount
• Piston and finish specification: Stainless pistons; Black calipers; Black Powder Coat
• Hydraulic inlet: 1/8-27 NPT
• Wheel bolt pattern(s): 4 x 3.93 in; 4 x 99.82 mm
• Stud-hole / clearance provision: 0.500 in; 12.70 mm; diameter provision, not a thread designation
• Wheel diameter starting requirement: 15 in; 381 mm; verify the individual wheel against the installation drawing

Fitment & Compatibility

Confirm the particular Miata year and sports-suspension row, including the 2001 VIN split. DS1021 names a broader 1990–2005 family than the application rows; have the exact early-year coverage verified before ordering.

Documented model groups, subject to each year, submodel and spindle/axle qualification: Mazda Miata. Application distinctions include All except Sports Suspension; w/ Sports Suspension from VIN 206467; w/ Sports Suspension to VIN 206466; w/ Sports Suspension.

The application list covers 1991–1997 and 1999–2000, plus 2001–2005 with the stated sports-suspension qualifications. The 2001 sports-suspension rows split at VIN 206466/206467; do not collapse these into an unsupported 1990–2005 direct-fit claim.

Flexible brake lines are not included. Original lines are not assumed to connect to the Wilwood calipers; select the application-specific or correctly sized universal hose and matching fittings.

Manufacturer References

• Wilwood exact kit specifications
• Wilwood installation instructions DS1021

Contact PMB Performance with the brake-kit identification and measurements for help selecting the part. Our team brings over 20 years of experience.

Review the complete application table below with the year, submodel and installation qualifications above.