Wilwood Front Red Four-Piston Brake Package, 12.19-Inch Drilled Rotors for Mazda MX-5 Miata 2016–2023 and Fiat 124 Spider 2017

The red four-piston Dynalite version uses 12.19 by 0.81-inch drilled-and-slotted rotors. Its two-piece rotor assembly registers on the specified MX-5 or 124 Spider front hub with application-specific rings and braided hoses. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and builds disc brake systems for motorsport, street-performance and specialized uses, including calipers, rotors, master cylinders, valves, fittings and brake lines. Each part must match the requirements of the whole braking arrangement.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-14233-DR
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Minimum wheel guidance (clearance drawing required): 15 in; 381 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No
• Pistons per service caliper: 4
• Service-caliper piston construction: Stainless
• Service-caliper mount: Lug
• Caliper body construction: Forged aluminum
• Caliper Color: Red
• Caliper Finish: Red Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: Dynalite
• Pad compound: BP-10
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes
• 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

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 brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.