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Product details
This GT-slotted package puts red six-piston calipers over 14-inch Spec-37 rotors on the documented S197 front hubs. Wheel clearance and dust-plate space are key purchase checks because the kit retains the original spindle and hub layout. The manufacturer is Wilwood Engineering, founded by Bill Wood in 1977 and based in Camarillo, California. It designs and manufactures disc brake components and complete systems, from calipers and brake rotors to valves, master cylinders, fittings and brake lines. Motorsport, street-performance and specialized installations each require those components to be matched to the complete brake system.
Technical Details
- Manufacturer part number: 140-9110-R
- Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
- Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
- Rotor/hat wheel-stud clearance pattern(s): 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm; the existing hub/axle pattern is retained
- Hat/rotor stud-hole clearance: 0.580 in; 14.73 mm; 0.520 in; 13.21 mm; this is not a wheel-stud thread designation
- Hydraulic hoses: not included; match the separate lines and fittings to the application
- Kit includes calipers, rotors and mounting hardware; replacement hubs and spindles are not included
- Not included: master cylinder and brake booster
- Wheel clearance: 18-inch wheels may fit; check the complete manufacturer caliper/rotor template
- Quantity: sold as one axle kit
- Service calipers: 6-piston Forged Narrow Superlite 6R; Red Powder Coat; radial mounting
- Brake rotors: 14.00 x 1.25 inches; Spec-37 Iron; GT Slotted; vented
- Included pad compound: BP-10; pistons: stainless steel
Fitment & Compatibility
For the listed 2005–2014 Ford Mustang front applications with five-lug, stock-offset hubs. The table separates base, GT, Bullitt, Boss 302 and Shelby GT500 configurations by year. Confirm the exact factory package and wheel measurements before ordering.
The 14-inch assembly needs the wheel clearance shown in DS521; nominal 18-inch diameter alone is insufficient. The original dust plates may need removal. Order front hose kit 220-9111 separately and install its replacement line brackets using the specified factory hardware.
Review the complete fitment table below before purchase, retaining the restrictions attached to the chosen vehicle.
Manufacturer Resources
- Wilwood kit specifications and wheel-clearance information
- Installation instructions and component list
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.
PMB Performance brings over 20 years of experience with brake components and fitment details. Send us your VIN together with the installed axle, spindle, brake and wheel specifications if you need help confirming this package.
Vehicle Applications
| Years | Make | Model | Submodel | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|---|
| 2005-2006, 2010-2013 | Ford | Mustang | Base | Base Models | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2005-2006, 2010 | Ford | Mustang | GT | GT Models | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2007, 2009 | Ford | Mustang | All, Except Shelby GT500 | Disc | Disc | Front Kit | 1, 2, 3, 4 | |
| 2007-2012 | Ford | Mustang | Shelby GT500 | Shelby GT500 | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2008 | Ford | Mustang | All, Except Shelby GT500 & Bullit | Disc | Disc | Front Kit | 1, 2, 3, 4 | |
| 2008 | Ford | Mustang | Bullitt | Bullit | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2011-2012 | Ford | Mustang | GT | GT Models w/ Performance Brakes | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2011-2012 | Ford | Mustang | GT | GT Models w/o Performance Brakes | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2012-2013 | Ford | Mustang | Boss 302 | Boss 302 | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2013 | Ford | Mustang | GT | GT w/ Brembo Brakes (Automatic Trans) | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2013 | Ford | Mustang | GT | GT w/ Brembo Brakes (Manual Trans) | Disc | Disc | Front Kit | 1, 2, 3, 4 |
| 2013-2014 | Ford | Mustang | Shelby GT500 | Shelby GT500 | Disc | Disc | Front Kit | 1, 3, 4 |
| 2014 | Ford | Mustang | Base | Base | Disc | Disc | Front Kit | 1, 3, 4 |
| 2014 | Ford | Mustang | GT | GT w/ Brembo Brakes (Automatic Trans) | Disc | Disc | Front Kit | 1, 3, 4 |
| 2014 | Ford | Mustang | GT | GT w/ Brembo Brakes (Manual Trans) | Disc | Disc | Front Kit | 1, 3, 4 |
| 2014 | Ford | Mustang | GT | GT w/o Brembo Brakes | Disc | Disc | Front Kit | 1, 3, 4 |
| 2014 | Ford | Mustang | Shelby | Shelby | Disc | Disc | Front Kit | 1, 3, 4 |
Application Notes
- 14" Rotor
- Front flexline kit 220-9111 is specified for this kit and is sold separately. Confirm fitting compatibility and hose routing for the vehicle.
- Line kit included (manufacturer): None
- Front line-kit reference: 220-9111