Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Red FNSL6R calipers surround 14.00 x 1.25-inch SRP rotors in this Skyline R33 front kit. Included braided hoses serve the flexible hydraulic connection, while the hat and register-ring arrangement locates the two-piece discs on the factory hubs. 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: 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
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-10
- Listed piston bore sizes: 1.75 / 1.25 / 1.25 in
Kit contents and separate parts
- Manufacturer part number: 140-18253-DR
- 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
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.
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.
