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

This front conversion combines black four-piston Dynalite calipers with 12.19-inch plain-face vented rotors. The hats and supplied registration rings match the specified MX-5 Miata or Fiat 124 Spider hub application. The manufacturer, Wilwood Engineering, was established by Bill Wood in 1977 and is based in Camarillo, California. It designs and builds disc brake systems with a range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines. Motorsport, street-performance and specialized applications require components selected for the complete braking system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-14233
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• 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
• Rotor Outside Diameter: 12.19 in; 309.63 mm
• Rotor Thickness: 0.81 in; 20.57 mm
• Rotor Material: Iron
• Surface Type: Plain Face
• 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: Plain
• 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

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

Our team at PMB Performance has over 20 years of parts and fitment experience. The existing component number and brake-system details help us check the match.