Fitment questions?
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Product details
The red GT version of this Skyline R34 front kit combines six-piston Superlite calipers with curved-vane 12.88-inch discs. BP-20 pads and braided front hoses are included, giving the 1999–2002 application a defined friction package without replacing the hubs. Wilwood Engineering, based in Camarillo, California, has designed and manufactured disc brake systems since its founding by Bill Wood in 1977. The range spans calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications.
Technical Details
Calipers and pads
- Calipers: FNSL6R; 6 pistons
- Caliper finish: Red Powder Coat
- Body construction: Forged aluminum
- Pistons: stainless
- Mounting: radial
- Hydraulic inlet: 1/8-27 NPT
- Included pad compound: BP-20
- Listed piston bore sizes: 1.75 / 1.25 / 1.25 in
Kit contents and separate parts
- Manufacturer part number: 140-18256-R
- 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: included; DOT-compliant hoses
Installation documents
Rotors and mounting dimensions
- Rotors: 12.88 in; 327.15 mm diameter x 1.25 in; 31.75 mm thick; vented Spec-37 Iron
- Friction faces: GT Slotted
- Rotor coating/finish: Black Electro Coat
- Internal vanes: 48 curved
- Hats: Aluminum; Black E-Coat; 0.595-inch hat offset
- Rotor/hat wheel-stud clearance patterns: 4 x 4.5 in; 4 x 114.3 mm; 5 x 4.5 in; 5 x 114.3 mm
Fitment & Compatibility
This front conversion is the 12.88-inch Superlite configuration for the 1999–2002 Nissan Skyline R34. The original hubs remain in place beneath the aluminum hats; inspect their registers and wheel studs before fitting the adapters. Use the supplied stainless braided hoses, checking both full steering lock and suspension movement after connection. The guide describes the necessary dust-shield modification and radial bracket alignment. A wheel that meets the nominal diameter requirement still needs to match this kit's spoke and barrel clearance diagram. Nominal minimum wheel diameter: 17 in; 431.8 mm. The linked wheel-clearance diagram must confirm barrel and spoke clearance; wheel diameter alone does not guarantee fit.
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.
Our team at PMB Performance draws on 20+ years of brake and restoration work. We can help you review the application requirements before you assemble the system.
