Wilwood Front Black Dynalite Conversion for Mazda MX-5 Miata 2016–2023 and Fiat 124 Spider 2017, 12.19-Inch Drilled Rotors

Black Dynalite calipers and drilled-and-slotted 12.19-inch rotors form this front package. The included hoses and mounting hardware must be checked against the individual Mazda or Fiat year and trim entry. Since its founding by Bill Wood in 1977, Wilwood Engineering has focused on disc brake system design and manufacturing. Based in Camarillo, California, it offers calipers, rotors, brake lines, master cylinders, fittings and valves for motorsport, street-performance and specialized installations. Choose components to satisfy the requirements of the entire braking system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-14233-D
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Rotor Outside Diameter: 12.19 in; 309.63 mm
• Rotor Thickness: 0.81 in; 20.57 mm
• Rotor Material: Iron
• Surface Type: SRP Drilled & Slotted
• Rotor construction: Vented
• Bolt Circle Diameter: 4 x 3.93 in; 4 x 99.82 mm
• Catalog stud / mounting-hole reference: 0.500 in; 12.70 mm
• Rotor surface finish: Black Electro Coat
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset dimension: 0.750 in
• Minimum wheel guidance (clearance drawing required): 15 in; 381 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes
• Pistons per service caliper: 4
• Service-caliper piston construction: Stainless
• Service-caliper mount: Lug
• Caliper body construction: Forged aluminum
• Caliper Color: Black
• Caliper Finish: Black Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: Dynalite
• Pad compound: BP-10

Fitment & Compatibility

Use the individual Mazda MX-5 Miata or Fiat 124 Spider year/trim below, including the specific 2017 Classica/Lusso entries rather than assuming every 124 version. DS-1176 includes front flexlines 220-12948 and registration rings. The 12.19-inch assembly may fit some 15-inch wheels, but barrel and spoke clearance must be measured from the supplied diagram.

Listed models: MX-5 Miata; 124 Spider. Use the fitment table below for the individual years, submodels and equipment conditions.

Wilwood product specifications · Installation instructions

PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.