Wilwood Front Kit: 14.00-inch GT Slotted Rotors and Black FNSL6R Calipers for Nissan 240SX (1989–1998), Skyline (1989–1994) and 300ZX (1990–1996)

This 14-inch front Superlite package uses 72 curved vanes within each Spec-37 iron rotor and six stainless pistons in each black caliper. BP-20 pads and aluminum hats complete the friction assemblies for the specified Nissan hubs, with a nominal 18-inch minimum wheel requirement. 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-20
• Listed piston bore sizes: 1.62 / 1.12 / 1.12 in

Kit contents and separate parts

• Manufacturer part number: 140-18247
• 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
• Related installation parts to select for the application: 220-18241; 220-12862

Installation documents

• Installation instructions

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: GT 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

Use this 14-inch package on the factory disc spindles and hubs specified for Nissan 240SX (1989–1998), Skyline (1989–1994) and 300ZX (1990–1996). Its larger rotor envelope makes a wheel-template check essential before assembly. The retained hub determines the wheel bolt pattern; align the four- or five-lug hat holes with that hub and fit the correct register adapter. The installation guide distinguishes Nissan mounting-bolt arrangements and requires dust-shield trimming. No flexlines are supplied: choose the correct hose kit for the vehicle. Confirm the individual ABS and submodel restrictions in the table. 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.

Vehicle Applications

Application Notes

1. Line kit included (manufacturer): None
2. Front line-kit reference: 220-18241, 220-12862