Wilwood Front Polished Superlite 6R ProSpindle Kit with 14-Inch Drilled/Slotted Rotors

Polished Narrow Superlite 6R calipers and 14-inch SRP rotors make up this front ProSpindle hub kit. The caliper finish is paired with drilled-and-slotted rotor surfaces, while the shared hub-and-hat geometry requires the same careful wheel and suspension checks as other finishes. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. The company designs and manufactures disc brake systems, with calipers and brake rotors complemented by master cylinders, valves, fittings and brake lines. That range supports specialized applications as well as motorsport and street-performance vehicles; the entire brake system determines component selection.

Technical Details

• Manufacturer part number: 140-9920-DP
• Included hub patterns: 5 x 4.50 inches (5 x 114.3 mm) and 5 x 4.75 inches (5 x 120.65 mm); 1/2-20 wheel studs
• Published OE hub offset: +0.68 inch per side; account for outward wheel movement
• Included: hubs, bearings, seals, dust caps and brake mounting hardware; separate rotor hats included
• Not included: spindles, master cylinder, booster or brake flexlines
• Rotor ventilation: 72 curved vanes
• Position and package: front brake and hub kit; one kit services both sides
• Calipers: Forged Narrow Superlite 6R, 6 pistons, forged aluminum bodies with stainless-steel pistons
• Finish: Polish
• Rotors: 14.00 x 1.10 inches, vented Spec-37 iron; SRP Drilled & Slotted faces
• Caliper mounting: radial; hydraulic inlet 1/8-27 NPT
• Included friction: BP10 pads
• Wheel-diameter guide: 18 inches; actual wheel must pass the manufacturer clearance template
• Supported spindles: Wilwood standard-height ProSpindle 830-10832 or two-inch-drop ProSpindle 830-9807; spindles sold separately

Fitment & Compatibility

Compare the intended wheel with the complete clearance diagram, allowing for the caliper’s radial and spoke envelope. Brake lines are separate; original rubber hoses do not adapt directly. Select the correct 1/8-27 NPT caliper connection and flexline length, and check for interference through suspension travel and full steering movement.

Use only the supported ProSpindle arrangement and follow the height-specific bracket procedure. The kit does not establish vehicle fit from a chassis name alone, and the actual wheel must clear the rotor, caliper and hub assembly. Compatible spindle part numbers are 830-10832 for standard height and 830-9807 for the two-inch drop. The published +0.68-inch hub offset is per side and must be included in the wheel/fender clearance assessment.

Wilwood kit specifications · Manufacturer installation instructions and wheel-clearance diagram.

With over 20 years of experience, PMB Performance can help match the brake package to the actual suspension and wheel arrangement. Provide the installed hardware details when fitment is uncertain.

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.