Fitment questions?
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Product details
This 14-inch R33 package pairs black Superlite 6R calipers with drilled/slotted rotors and BP-10 pads. The larger disc envelope calls for the nominal 18-inch wheel minimum, with the installation template deciding actual spoke and barrel clearance. 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: 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 / 1.25 / 1.25 in
Kit contents and separate parts
- Manufacturer part number: 140-18253-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: included; DOT-compliant hoses
Installation documents
Rotors and mounting dimensions
- Rotors: 14.00 in; 355.6 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; 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
The 14-inch FNSL6R package retains the front hubs of the specified 1995–1998 Skyline R33. Verify the hub register, stud clearance and wheel envelope before installing the two-piece rotor assemblies. The guide calls for dust-shield trimming and careful alignment of the radial caliper brackets. Included braided hoses connect the calipers to the vehicle; support them so they cannot rub the tires or become tight at full travel. This R33 configuration uses the piston sizes and mounting hardware listed above, so selection should follow the exact kit guide rather than rotor diameter alone. Nominal minimum wheel diameter: 18 in; 457.2 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.
