Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The black SX6R/SRP configuration combines 15.00 x 1.25-inch drilled/slotted discs with dynamic lug-drive hats. BP-10 pads occupy the SX6R's 15.9-square-inch pad area, and the Roadster Shop brackets position the six-piston calipers around the large rotor envelope. Founded by Bill Wood in 1977 and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Its components include calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to suit the complete brake system.
Technical Details
Rotors and mounting dimensions
- Rotors: 15.00 in; 381 mm diameter x 1.25 in; 31.75 mm thick; vented Spec-37 Iron
- Friction faces: SRP Drilled & Slotted
- Rotor coating/finish: Black Electro Coat
- Internal vanes: 72 curved
- Hats: Aluminum; Type III Anodize; 0.868-inch hat offset
Calipers and pads
- Calipers: SX6R; 6 pistons
- Caliper finish: Black Powder Coat
- Body construction: Forged aluminum
- Pistons: stainless
- Mounting: radial
- Hydraulic inlet: 1/8-27 NPT
- Included pad compound: BP-10
- Listed piston bore sizes: 1.75 / 1.38 / 1.38 in
Kit contents and separate parts
- Manufacturer part number: 140-18368-D
- Supply: one brake kit; components for both sides of the axle
- Mounting hardware: included
- Hubs: not included
- Spindles, master cylinder and brake booster: not included
- Brake flexlines: not included
Fitment & Compatibility
This SX6R configuration requires the Roadster Shop Mustang II upright and the five-on-4.75-inch hub application described in DS-1703. Confirm the precise hub and hat dimensions before ordering; the original vehicle's model year does not identify this custom assembly. The 15-inch rotors attach through dynamic drive lugs and wear clips, secured by a retaining ring. Follow the guide's snap-ring engagement checks and the prescribed steering-arm bracket location. Retain compatible hubs and supply spindles and flexlines separately. Check wheel clearance for the rotor, large caliper body and hose routing. Nominal minimum wheel diameter: 19 in; 482.6 mm. The linked wheel-clearance diagram must confirm barrel and spoke clearance; wheel diameter alone does not guarantee fit.
Installation documents
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 more than 20 years of brake and restoration experience to parts selection. Contact us with the installed spindle or axle details if you need help matching this kit.
