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Product details
Build a race-only inboard sprint brake around the 11.75-inch vented Super Alloy rotor and four-piston caliper. Check the splined axle interface. Disc brake system design and manufacturing are Wilwood Engineering’s focus. Bill Wood founded the Camarillo, California company in 1977; its range spans brake rotors, master cylinders, calipers, fittings, valves and brake lines for motorsport, specialized and street-performance applications. The choice of individual components depends on the complete brake system.
Technical Details
- Manufacturer: Wilwood
- Manufacturer part number: 140-15345
- Kit classification: Rear Brake Kits - Race
- Axle position: Rear Kits
- Brake Type: Disc
- Selling unit: Sold as a kit.
- Recommended Use: Race Only. Not for Street use.
- Pistons per service caliper: 4
- Service-caliper piston material: Stainless steel
- Service-caliper mounting: Radial
- Caliper Color: Gray
- Caliper Finish: Type III hard anodize
- Caliper Inlet Port Diameter: 1/8-27 NPT
- Caliper family: Narrow Dynalite radial-mount
- Pad compound: BP-28
- Rotor Outside Diameter: 11.75 in
- Rotor Thickness: 0.81 in
- Rotor Material: Super Alloy
- Surface Type: Slotted
- Rotor construction: Vented
- Bolt Circle Diameter: Splined
- Rotor surface finish: Plain
- Rotor vane / construction reference: 32 V
- Required spindle / rear housing interface: OEM
- Spindle Included: No
- Mounting Hardware Included: Yes
- Separate wheel hubs included: Splined dynamic rotor axle clamp and adapter included; not a wheel hub
- Master Cylinder Included: No
- Brake Booster Included: No
- Brake Lines Included: No
Fitment & Compatibility
This is an inboard rear sprint-racing brake, not a road-car axle conversion. It requires a 3.00-inch, 46-spline quick-change axle and the standard inboard side-bell mounting arrangement with 3.50-inch bolt centers. The scalloped 11.75 × 0.81-inch Super Alloy rotor uses a floating adapter and split axle clamp; that clamp is not a wheel hub. Align and secure the clamp within the rotor adapter as DS-1277 directs. The narrow four-piston caliper uses BP-28 race pads and a 1/8-27 NPT hydraulic inlet. Hoses, a master cylinder and a booster are not included. Race only; not for street use.
Wilwood product specifications · Installation instructions
With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.
Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.
