Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Drilled/slotted SRP rotors and black Superlite 6R calipers identify this Wilwood ProSpindle front kit. The 12.88-inch one-piece rotor arrangement includes replacement hubs, bearings, application brackets and BP-10 pads. The kit is selected by the actual spindle and hub interfaces on a modified suspension. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines. Its product range serves motorsport, street-performance, and specialized applications, with individual components selected to match the requirements of the complete brake system.
Technical Details
- Manufacturer part number: 140-12276-D
- Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub and 1PC Rotor)
- Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Black Powder Coat; radial mounting.
- Piston bores: 1.62, 1.12, 1.12 inches; Stainless pistons. Included pad compound: BP-10.
- Rotors: 12.88-inch diameter × 1.10-inch width; SRP Drilled & Slotted; Iron; Black Electro Coat finish.
- Wheel mounting change from OE: +0.55 inches per side; check wheel offset and fender clearance.
- Replacement hubs: Hub - Hat Mount; Aluminum; Bare. Bearings and hub hardware are specified in the installation instructions.
- Wheel bolt circles: 5 x 4.50; 5 x 4.75 inches.
- Included: paired calipers, pads, rotors, brackets and assembly hardware, replacement hubs and bearings.
- Hydraulic flex lines are separate. Master cylinder, booster and spindles are not included; retain or select suitable matching components.
- Conditional minimum wheel diameter: 17 inches. Verify the complete clearance drawing for barrel and spoke offset before purchase.
Fitment & Compatibility
Use DS869 to verify the ProSpindle assembly, bearing journals and bracket locations. Match the hub lug circle and account for the published wheel mounting change before choosing wheel offset. No unlisted donor-vehicle compatibility is implied by this component-level kit. Arrange flexible hydraulic lines independently and inspect their clearance through steering travel. A 17-inch wheel is only a conditional starting size: its inner section must match the caliper drawing behind the spokes as well as around the barrel.
Wilwood installation documents: Installation instructions.
PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle, axle or spindle details and wheel measurements for fitment help.
California Proposition 65 warning, brake pads only: 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.
