Description
Brake System - Forged Narrow Superlite 4R - Front - 4 Piston Caliper - 12.190 in Drilled / Slotted Iron Rotor - Aluminum - Black Powder Coat - GM SUV / Truck 1963-87 - Kit
Wilwood Narrow Superlite 6R Front Kit 12.19in Drilled 63-87 C10 w/ Wilwood Pro Spindles
The unsurpassed braking capacity of the Forged Narrow Superlite 4R four-piston caliper serves as the base of this 12.19” big rotor kit for the popular 1963 thru 1987 Chevrolet & GM C10 / C15 Trucks with Wilwood's new Modular Drop Pro Spindles. SL4 kits are engineered application specific for simplified installation and full compatibility with OE master cylinder output and ABS functions where used. Big brake kits provide increased brake capacity and complimentary style with wheel, tire, and suspension upgrades. Optional caliper finishes and rotor designs simplify personalizing the style and braking requirements of any application.
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 10:16:29
Features
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Wilwood, Wilwood Disc Brakes |
| StreetFX SKU | wil140-15302-D |
| SFX Item ID | 4403861 |
| Accounting SKU | wil-140-15302-D |
| Manufacturer SKU | 140-15302-D |
| Manufacturer UPC | 889545077544 |
| Alternative References | WIL-140-15302-D |
Disc Brake Kit, Forged Narrow Superlight 6R, Front, Cross-drilled/Slotted Rotors, 6-piston Black Calipers, Chevy, GMC, Truck, Kit
Wilwood forged narrow Superlite 6R Big Brake front brake kits upgrade your late model ride with increased brake capacity and complimentary style. They're application-specific for a simpler installation and offer full compatibility with OE master cylinder output and ABS functions, where used. These front brake kits feature the extremely durable and efficient body design of their forged narrow 6-piston radial mount calipers. You can choose from optional caliper finishes and rotor designs to meet your personal style and braking requirements. Don't just replace—upgrade to generate big stopping power with Wilwood forged narrow Superlite 6R Big Brake front brake kits.
| Product Attributes | |
|---|---|
| UPC | 889545077544 |
| Brand | Wilwood Disc Brakes |
| Position | Front |
| Quantity | Sold as a kit. |
| Part Type | Disc Brake Kits |
| Product Line | Wilwood Forged Narrow Superlite 6R Big Brake Front Brake Kits |
| Front Rotor Style | Cross-drilled/Slotted surface |
| Special Attention | Brake kits require Wilwood Forged Aluminum ProSpindles Drop Spindles to fit. Not compatible with Weld Prostar 96 Series wheels with inside welds. Please see the Required Parts tab. |
| Front Caliper Color | Black |
| Rear Rotor Included | No |
| Brake Hoses Included | No |
| Front Rotor Diameter | 12.19 in./309.63mm |
| Front Rotor Included | Yes |
| Rear Caliper Included | No |
| Brake Booster Included | No |
| Front Caliper Included | Yes |
| Front Caliper Material | Forged billet aluminum |
| Front Spindles Included | No |
| Parking Brake Provision | No |
| Front Rotor Construction | Vented |
| Master Cylinder Included | No |
| Manufacturer's Part Number | 140-15302-D |
| Front Rotor Thickness (in.) | 0.81 in. |
| Brake Rotor Bolt Pattern (mm) | Dual 5 x 120.65mm/5 x 127.00mm |
| Front Caliper Piston Quantity | Six |
| Brake Rotor Bolt Pattern (in.) | Dual 5 x 4.75 in./5 x 5.00 in. |
| Minimum Recommended Wheel Diameter (in.) | 15 in. |
Compatibility
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