Wilwood Front Red Narrow Superlite 6R ProSpindle Hub Kit with 12.88-Inch Slotted Rotors

This red-caliper ProSpindle kit retains the GT slotted 12.88-inch rotor face. The Narrow Superlite 6R assembly includes six-piston calipers, hub hardware and BP10 pads, while the chassis must provide the specified spindles and a compatible hydraulic connection. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and related components. Bill Wood founded the company in 1977. The range spans motorsport, street-performance and specialized applications, including calipers, brake rotors, master cylinders, valves, fittings and brake lines that must be chosen to suit the complete system.

Technical Details

• Manufacturer part number: 140-9919-R
• Included friction: BP10 pads
• Wheel-diameter guide: 17 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
• 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: 48 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: Red Powder Coat
• Rotors: 12.88 x 1.10 inches, vented Spec-37 iron; GT Slotted faces
• Caliper mounting: radial; hydraulic inlet 1/8-27 NPT

Fitment & Compatibility

The installed ProSpindle governs the mounting procedure. Verify its height, steering-arm orientation and available wheel space; the supplied dual-pattern hubs do not make this a universal front brake conversion. 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.

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.

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

For help planning the installation, PMB Performance draws on more than 20 years of experience with brake components. Send the relevant spindle, rear-axle and wheel specifications for a compatibility review.

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.